C O N T E N T - ICIMECE 2020...O N L I N E P R E S E N T A T I O N Due to COVID 19 pandemic, the...
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Transcript of C O N T E N T - ICIMECE 2020...O N L I N E P R E S E N T A T I O N Due to COVID 19 pandemic, the...
CONTENT
CONTENT ………………………………………………………………………………………….......1
OPENING SPEECH …………………………………….……………………………………………...2
ICIMECE 2020 PROFILE ……………………………………………………………………………...3
ICIMECE 2020 STATISTICS …….………………………….………………………………………..6
ONLINE PRESENTATION …………………………………...……………………………………….9
RUNDOWN…………………………………………………………………………………………...10
KEYNOTE SESSION ……………………………………………………………………………….12
INVITED SPEAKER………………………………………………………………………………….15
CHEMICAL ENGINEERING………………………………………………………………………...20
MECHANICAL ENGINEERING…………………………………………………………………….28
INDUSTRIAL ENGINEERING ………………………………………………………………….......50
ELECTRICAL ENGINEERING ……………………………………………………………………...69
PJB CONNECT ……………………………………………………………………………………….84
SPECIAL SYMPOSIUM…………………………………………………………………………….111
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 1
Opening Speech : Dean of Faculty of Engineering, UNS The honourable of keynote speakers,
Excellencies,
Colleagues,
Ladies and gentlemen,
Thank you All for joining this virtual meeting of International Conference on Industrial, Mechanical, Electrical and Chemical Engineering (ICIMECE) 2020. As the Dean of Faculty of Engineering, Universitas Sebelas Maret, it is a great honour to welcome you in this 6th ICIMECE 2020.
As someone said that the “show must go on”. This global surreal situation by COVID 19 pandemics has changed ICIMECE 2020 to be virtual conference. However, we have promised that this condition will not reduce our goal making the ICIME 2020 to be the forum to share and discuss the ideas and research results on engineering, science and technology. I especially thank to the keynote speakers, participants, sponsors and partners for their contribution and all committees for their great effort to organize this conference.
This conference was formerly known as IMECE which was first held in November 2015. This is a series of annual conference which was usually held in Surakarta, Indonesia. The theme of ICIMECE 2020 is “Towards the development of intelligent green technology to contribute high energy efficiency with low environmental impact”. The reason why we chose this theme is because, firstly, global energy demand is expected to increase by 60% by 2030. Secondly, the price of oil and gas is rising in which this has enforced us to find more reliable alternative energy. Thirdly, our climate is changing, and this is not only due to the energy sources we use today but also the materials we use in our daily life which is not environmentally-friendly, such as plastics.
In terms of ICIMECE 2020 data, we have received more than 270 papers in the first stage and after a thorough review, there are 197 papers accepted. The papers are coming from various countries including, USA, Netherlands, Estonia, China, Taiwan, South Korea, Japan, Vietnam, Malaysia and Indonesia. All accepted papers will be published in reputable proceeding series which are IOP and Procedia in structural integrity and special issue of reputable journals which are Evergreen and Open Engineering. These papers are also presented virtually and published through ICIMECE 2020’s website channel. Due to the huge numbers of papers presented and the significant number of international presenters, I wish this conference could trigger the collaboration among the researchers and scientists which can bring solutions for global problems in energy and environmental impact linear to the vision of ICIMECE 2020.
Currently we realize that international engagement and cooperation is very important in solving the global problem that we are facing and ICIMECE 2020 is one of events that our institution, Universitas Sebelas Maret or UNS, may contribute on it. By inviting international researchers and scientists, we want to prove that UNS is one of excellent universities in Indonesia that can work together and compete in the international scene.
With Bismillahirrahmanirrahim, I declare the ICIMECE 2020 is officially opened.
I wish you a successful and enlightening conference.
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ICIMECE 2020
On behalf of the Conference Organising Committee, we invite you to attend the 6th International E-Conference on Industrial, Mechanical, Electrical and Chemical Engineering (ICIMECE 2020), which will be held online via Video Conference (for keynote speaker) and by recorded presentation for invited presenter and presenter. This conference is organized by Universitas Sebelas Maret (UNS). Due to many considerations in these unprecedented times related to COVID-19 outbreak, the date of conference has been moved to 20 October 2020. This was formerly known as IMECE which was first held in November 2015. Paper in the former conference has successfully been published in the conference proceedings, which is indexed by Scopus. This event will include the participation of renowned keynote speakers, oral presentations, and technical conferences related to the topics dealt with within the Program. The conference theme is “Towards the development of intelligent green technology to contribute high energy efficiency with low environmental impact“. The conference will address the practical engineering application (mechanicals, electricals, energy and power engineering, industrial engineering, and chemical engineering). This year, ICIMECE collaborates with European Structural Integrity Society (ESIS) and Elsevier to arrange a special symposium in field of material and structural integrity. This year, ICIMECE collaborates with European Structural Integrity Society (ESIS) and Elsevier to arrange a special symposium in field of material and structural integrity. For more details, kindly visit “Symposium” tab in main menu. Moreover, in this year, we also collaborate with one of big event held by PJB called PJB Connect. PJB also has the role as co-host in ICIMECE 2020.
The aims of this joint conference are to : Provides opportunities for the delegates to exchange new ideas face-to-face to bring together
leading academic scientists, researchers, and research scholars to exchange and share their experiences and research results on all aspects of engineering, science, and technology
lead to significant contributions to the knowledge in these up-to-date scientific fields.
Venue The Conference will be held online via Video Conference (for keynote speaker) and by recorded presentation for invited presenter and presenter
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Committee
Steering Committee Dr. Techn. Ir. Sholihin As’ad, M.T. Dody Ariawan, S.T., M.T., Ph.D. Dr. Wahyudi Sutopo, S.T., M.Si. Dr. Eko Surojo, S.T., M.T. Prof. Dr. Cucuk Nur Rosyidi, S.T., M.T. Prof. Muhammad Nizam, S.T., M.T., Ph.D. Prof. Dr. Eng. Agus Purwanto, S.T., M.T.
Conference Chair D. Danardono Dwi Prija T., S.T., M.T., Ph.D Conference Vice Chair Dr. Eng. Indri Yaningsih, S.T., M.T. Conference Co-Chair
Dr. Muh. Hisjam, S.T.P, M.T. Dr. Ubaidillah, S.T., M.Sc. Dr. Miftahul Anwar, S.Si, M.Eng. Dr. Sperisa Distantina, S.T., M.T.
Secretary Chico Hermanu Brillianto Apribowo, S.T., M.Eng. Dr. Eng. Aditya Rio Prabowo, S.T., M.T. M.Eng
Treasure Dr. Zainal Arifin, S.T., M.T. Suparmi
Technical Program Chair Inayati, S.T., M.T., Ph.D. Prof. Dr. Triyono, S.T., M.T.
Journal and Publication Chair Yuniaristanto, S.T., M.T. Dr. Fitrian Imaduddin, S.T., M.Sc. Feri Adriyanto, S.Pd., M.Si., Ph.D. Anatta Wahyu Budiman, S.T., Ph. D
Corporate Partnership Chair Sutrisno, S.T., M.T., Ph.D Accommodation
Dr. Budi Kristiawan, S.T., M.T. Jaka Sulistya Budi, S.T.
Consumption Dr. Ari Diana Susanti, S.T., M.T. Rahmaniyah Dwi Astuti, S.T.,M.T.
Transportation Muhammad Hamka Ibrahim, S.T., M.Eng. Webmaster and Publicity Dharu Feby Smaradhana, ST., M.Sc.
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International Advisory Board: Prof. Takahiko Miyazaki (Kyushu University, Japan) Prof. Jung Min Sohn (Pukyong National University, South Korea) Prof. Joung Hyung Cho (Pukyong National University, Busan, South Korea) Assoc. Prof. Saiful Amri Mazlan (Japan International Institute of Technology, UTM,
Malaysia) Dr. Umar Zakir Abdul Hamid (Sensible 4 Ltd, Finland) Dr. Eng. Rando Tungga Dewa (University of West Bohemia, Czech Republic) Dr. Eng. Bo Cao (China Shipbuilding Industry Corporation Economic Research Center,
China) Dr. Eng. Aldias Bahatmaka (Daewoo Shipbuilding and Marine Engineering, South Korea) Dr. Muhammad Sultan (Bahauddin Zakariya University, Pakistan) Dr. Kosaku Kurata (Kyushu University, Japan) Dr. Eng. Pandu Sandi Pratama (Cobotlab, Co. Ltd, South Korea) Gregorius Rionugroho Harvianto, Ph.D. (Benit M Co., Ltd) Mohd Hatta Bin Mohammed Ariff, Ph.D. (Universiti Teknologi Malaysia)
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ICIMECE 2020 STATISTICS
The number of received and accepted papers
*Rejection rate: 27%
The papers are classified into 5 categories: Chemical Engineering, Mechanical Engineering, Industrial Engineering, Electrical Engineering, PJB Connect (as Co-host) and Special Symposium in Structural Integrity.
PAPERS DISTRIBUTION BASED ON THE CATEGORY
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In terms of publication, ICIMECE 2020 partnerised with two proceedings (IOP and Procedia in Structural Integrity) and two journals (Evergreen and Open
Engineering) for selected papers.
DISTRIBUTION OF PAPERS’ PUBLICATION
*Total Papers: 197
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AUTHORS DISTRIBUTION
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ONLINE PRESENTATION Due to COVID 19 pandemic, the oral presentation is conducted through recorded presentation (on video format) which is then uploaded on ICIMECE 2020’s Youtube Channel. The discussion related to the presentation can be done on Youtube’s comments or via email (the corresponding email is provided on the description).
The video links based on the categories are provided as follows:
1. Chemical Engineering: http://bit.ly/icimece2020CE
2. Mechanical Engineering http://bit.ly/icimece2020ME
3. Industrial Engineering http://bit.ly/icimece2020IE
4. Electrical Engineering http://bit.ly/icimece2020EE
5. PJB Connect http://bit.ly/icimece2020PJB
6. Invited Speaker http://bit.ly/icimece2020IS
For Special Symposium in Structural Integrity, the presentation is done by publishing the posters on ICIMECE2020 website http://bit.ly/icimece2020SS
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RUNDOWN
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The conference is divided into two events: keynote speeches, invited speaker session and oral session. Keynote speeches will be conducted via video conference on October 20th 2020
Tuesday, 20 October 2020
Program WIB MYT KST & JST
08:00 - 08:15 09:00 - 09:15 10:00 - 10:15 Opening
08:20 - 09:00 09:20 - 10:00 10:20 - 11:00 Keynote 1
09:05 - 09:45 10:05 - 10:45 11:05 - 11:45 Keynote 2
09:50 - 10:30 10:50 - 11:30 11:50 - 12:30 Keynote 3
10:30 - 12:30 11:30 - 13:30 12:30 - 14:30 Break
12:30 - 13:10 13:30 - 14:10 14:30 - 15:10 Keynote 4
13:15 - 13:55 14:15 - 14:55 15:15 - 15:55 Keynote 5
13:55 - 14:00 14:55 - 15:00 15:55 - 16:00 Award Announcement
14:00 - 14:05 15:00 - 15:05 16:00 - 16:05 Closing
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KEYNOTE SESSION
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Keynote Speaker 1: Prof. Takahiko Miyazaki
Potential of latent heat load removal by activated carbons for energy savings of air conditioning systems
T Miyazaki1,3, Chairunnisa1,3 F. Miksik1,3, K Thu1,3, J Miyawaki1,2,3, K Nakabayashi2, A T Wijayanta4, F Rahmawati5, B Kristiawan4 and I Yaningsih4
1 Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga koen, Kasuga-shi, Fukuoka 816-8580, Japan
2 Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga koen, Kasuga-shi, Fukuoka 816-8580, Japan
3 International Institute for Carbon-Neutral Energy Research, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
4 Mechanical Engineering Department, Sebelas Maret University, Ir. Sutami street 36 A, Surakarta 57126, Indonesia
5 Chemistry Department, Sebelas Maret University, Ir. Sutami street 36 A, Surakarta 57126, Indonesia
Abstract. The study aims to achieve energy savings of air conditioning systems using desiccant dehumidification with low-cost adsorbent. For this purpose, two existing activated carbons were evaluated in terms of water adsorption capacity. The theoretical calculation of effective adsorption from the water adsorption isotherms revealed that the studied activated carbons have promising potential in dehumidification application. In addition to that, the improvement of cooling COP of air conditioners was predicted by simulation of heat pump cycle. The results showed that the COP improved by 50%, which was equivalent to the reduction of electricity input by 30%, with the raise of evaporation temperature from 8.5oC to 18.5oC. The results encouraged the separation of dehumidification load from air conditioners to achieve large energy savings.
Keynote Speaker 2: Dr. Mohd Azizi Abdul Rahman
Personalized Gait Treatment using Passive Controllable Ankle Foot Orthosis
Mohd Azizi Abdul Rahman Advance Vehicle System Laboratory, Malaysia-Japan International Institute of Technology,
Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Abstract. Ankle Foot Orthosis (AFO) is usually prescribed for gait treatment. Low cost, easy to fabricate, safe, long term usage, and personalized AFO is demanding to facilitate the prescription process, which is iterative, individualized, and collaborative. Passive Controllable AFO (PICAFO) was developed to fulfil the demand, consisting of several research works, such as the gait detection method, smart actuator design, and controller development. Two gait detection methods had been considered. Firstly, the system utilized the Electromyography (EMG) bio signal to detect the stance and swing phase. Secondly, hybrid Magnetorheological Elastomer (MRE) is used to detect four gait phases based on foot contact. The smart actuator, small scale Magnetorheological (MR) brake, had been constructed, which generated 2.1 Nm maximum damping stiffness to partially support the ankle stiffness. The controller is essential because controlling the damping stiffness accordingly to the current gait ensures positive assistance. The latest version of the PICAFO controller utilized ankle velocity reference to control the MR brake stiffness, which can be estimated based on the user’s walking speed and body mass index. The presented research works show that achieving personalized gait treatment using the PICAFO system is possible.
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Keynote Speaker 3: Prof Hyunsoo Lee
New Trends for Smart Manufacturing in COVID-19 Era Hyunsoo Lee
Associate Professor,School of Industrial Engineering, Kumoh National Institute of Technology, Korea
Abstract. This talk delivers several new trends for smart manufacturing in Covid-19 era. Smart manufacturing and the relevant technologies have been received enormous attentions in the era of the fourth industrial revolution. In particular, COVID-19 pandemic situation has accelerated maturity of smart manufacturing. In this talk, the technologies of smart manufacturing and their effects will be provided. In addition, we will discuss the difference between cyber physical system (CPS) / digital twin and automation. Then, we will check the relationship and meaning of Industrial Internet of Things (IIoT) and XR (VR/AR/MR) technologies with smart manufacturing. Several smart manufacturing projects are provided with novel trends in deep learning frameworks.
Keynote Speaker 4: Prof. Ilwhan Oh
Integrated Photoelectrolysis of Water Implemented on Organic Metal Halide Perovskite Photoelectrode
Ilwhan Oh Kumoh National Institute of Technology, Korea
Abstract. We report an integrated photoelectrolysis of water employing organic metal halide (OMH) perovskite material. As generic OMH perovskite material and device architecture are highly susceptible to degradation by aqueous electrolytes, we have developed a versatile mold-cast and lift-off process to fabricate and assemble multipurpose metal encapsulation onto perovskite devices. With the metal encapsulation effectively protecting the perovskite cell and also functioning as electrocatalyst, the high-performance perovskite photoelectrodes exhibit high photovoltage and photocurrent that are effectively inherited from the original solid-state solar cell. More importantly, thus-fabricated perovskite photoelectrode demonstrates record-long unprecedented stability even at highly oxidizing potential in strong alkaline electrolyte. We expect that this versatile lift-off process can be adapted in a wide variety of photoelectrochemical devices to protect the material surfaces from corroding electrolyte and facilitate various electrochemical reactions.
Keynote speaker 5: Prof. Koichi Murata
An Education Program for Technopreneurship: Developing Kaizen Mind
Koichi Murata Nihon University, Japan
Abstract. This keynote presentation aims at the introduction of an education program for technopreneurship in Graduate Program for Master's Course, College of Industrial Technology, Nihon University, Japan. The innovation management issues of a road from R&D to industrialization are recognized and discussed all over the world. In this situation, this program mainly purposes to develop Kaizen mind which means the ability to continue without giving up no matter what difficulties are faced. After explaining the way of thinking of Kaizen, this presentation will describe the outline of this program structure, and illustrate the knowledge & methodology to be provided in this program. In addition, this presentation will introduce the students’ comments and the outputs created by them as one evaluation result of this program, and finally describe the future issues.
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INVITED SPEAKER
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Invited Speaker 1 : Dr. Nurhazimah Nazmi
Gait Event Detection using Machine Learning Approach Nurhazimah Nazmi
Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Abstract. Exposure to physical therapy in rehabilitation shows a major interest in recent years for foot drop prevention by using ankle foot devices (AFO). In classifying the stance and swing phases, electromyography (EMG) signals were used to assist in utilising the AFO. Even though this approach has successfully controlled the actuator, classification model of EMG signals during stance and swing phases have not yet been discovered. Thus, a model to classify the stance and swing phases of EMG signals had been introduced using machine learning approach, artificial neural network (ANN). A model was developed by extracting the features using time domain (TD) and feeding it into ANN classifier. It was observed that Levenberg-Marquardt training algorithm of ANN model with five TD features performed better than other features with an average percentage of classification accuracy of 87.4%. The outcome of this study could enhance the development of AFO and implementations in real time application were suggested for future applications.
Link:
https://www.youtube.com/watch?v=8YO4ZKn_bvM&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&ab_channel=ICIMECE2020
Invited Speaker 2 : Dr. Nur Azmah bt Nordin
Kind of Magnetic Responsive Materials
Nur Azmah bt Nordin Malaysia-Japan International Institute of Technology,
Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia
Abstract. Smart materials, also called as stimuli-responsive materials are the ones that possess changeable properties via external stimuli such as electric, stress, pH, moisture, temperature, light and magnetic field. Magnetorheological (MR) materials belong to a group of smart materials owing to its excellent properties that can be changed continuously, rapidly, and reversibly by applying external magnetic field. A broad range of MR materials can be classified into MR fluid (MRF), MR elastomer (MRE), MR gel, MR grease (MRG) and MR foam, which mainly depending on the matrix based materials. Basically, MR materials are composed of magnetic particles known as carbonyl iron particles (CIP) that is incorporated into a polymeric medium such as grease, foam and rubber. Suspended of CIP in oil-based liquid, MRF would behave like a Newtonian fluid in the absence of the magnetic field, but rapidly change to the non-Newtonian fluid (solid-like phase) with presence of magnetic field. In such a way, the freely moving CIP would form chain-like structures and strong inter-particles bonding between the CIP has opposed the flow of fluid at the on-state condition. With this changeable rheological properties of MRF, the material has been implemented in few mechanical devices such as smart automotive damper, truck seat damper, MR brake and stepper in rehabilitation devices. In contrary, MRG that consists of CIP are dispersed in a non-magnetic medium of grease. Due to high viscosity of grease, MRG exhibit excellent dispersion stability between the CIP and matrix phase by ‘holding’ the particles from deposited to the bottom part of the material, unlike in MRF. High viscosity medium of grease also help to obstruct the agglomeration of CIP in MRG, credited to the dispersion property of the grease. Promising advantages of MRG such as high yield stress, controllable viscosity via magnetic field and high magnetic rheological effect has rendered its potential for controllable sealing devices. On the other hand, MRE is opposed to the state of MRFd and MRG. By replacing the carrier medium of fluid with polymeric matrix of rubber, the CIP has been embedded and locked in the matrix phase instead of randomly moving. The viscoelastic properties that exhibited by MRE can be used for stiffness and vibration control devices, smart isolator, sensing device, and actuator. Divided into two main types of MRE by ways of magnetic particles that dispersed in the elastomeric matrix, anisotropic-type MRE showing the enhanced properties owing to its embedded aligned CIP thus possess stronger inter-particles interaction toward the tuneable magnetic field, as compared to isotropic MRE. Meanwhile, the CIP that has been locked in the foam based
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materials, either in the foam pores or embedded in the strut of foam has driven the another solid MR group; known as MR foam to be controllable for sound and vibration control. Prior to the change of foam structure via magnetic field, MR foam would affect the energy wave that pass trough the smart foam that alter the resultant properties of the material. Small deformation of foam strain with low magnetic field strength also has wider its potential to be used for soft robotic and smart sensor.
Link: https://www.youtube.com/watch?v=R1IBmJf-y9A&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=2&ab_channel=ICIMECE2020
Invited Speaker 3 : Dr. Koji Enoki
Correlation of Pressure Drop in the Sintered Fibrous Porous Tube with Permeability and Friction Coefficient
Koji Enoki 1, Takuto Kobayashi 1, Ren Watanabe 1, Yusuke Otomo 1, Atsushi Akisawa 2, Indri Yaningshi 1, 3, 4, Budi Kristiawan 4 and Agung Tri Wijayanta 4
1Department of Mechanical and Intelligent System Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan
2Institute of Engineering, Division of Advanced Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Nakacho, Koganei-shi, Tokyo, 184-8588, Japan 3 Postdoctoral Research Fellow of the Japan Society for Promotion Science, Japan
4 Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutamino. 36 A Kentingan, Surakarta 57126 Indonesia
Abstract. In order to enhance the heat transfer performance of heat tubes, porous media are often sintered into them. This increases the heat transfer area due to the surface area being increased by the porous media. Our The test apparatus consisted of a double tube structure, and the length was 150 mm. Previous experiments have shown its usefulness and revealed that a breakthrough in the heat exchanger has occurred. For example, air heated to 200 °C and water cooled to 1 °C flowed inside and outside the heat tube, respectively. In tests with conventional heat tubes, air was discharged at 150 °C through the test section. However, in tubes filled with 50 mm of porous medium, air was discharged at 5 °C. In other words, a conventional tube would need to be 100 times as long. We have already proposed a correlation that can accurately predict the heat transfer coefficient regardless of the pipe diameter and filling length. On this study is about understanding the mechanism of pressure drop and constructing an equation, and We have established a method for predicting the pressure drop of a porous body within approximately ±10%.
Link: https://www.youtube.com/watch?v=x5suKPpusRg&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=3&ab_channel=ICIMECE2020
Invited Speaker 4: Dr. Kosaku Kurata
Application of Low-intensity Electric Fields to Cancer Treatment
Kosaku Kurata, Hiroshi Takamatsu Department of Mechanical Engineering, Kyushu University, Fukuoka, Japan
Abstract. Tumor-treating field (TTF) therapy has been attracting attention as a new minimally invasive treatment for cancers. This method applies an AC electric field to the targeted cells and inhibits cell division by dielectrophoretic forces acting on chromosomes and microtubules. Previous studies have shown that a very weak electric field of only a few V/cm interfered with chromosome migration and spindle formation. However, the therapeutic range of TTF treatment is still limited and the efficacy of the treatment is not high. In this presentation, I will show you a method for investigating the optimum conditions of the electric field using numerical simulations, which would be one of the ways that we engineers can contribute to the improvement of the TTF therapy. Three-dimensional finite element models of a sphere and dividing cell were
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developed, and the distributions of the electric field and the dielectrophoretic force were calculated as functions of the frequency of the applied voltage, cell shape and its electrical properties. Link: https://www.youtube.com/watch?v=hN9q2Miya38&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=4&ab_channel=ICIMECE2020
Invited Speaker 5: Dr. Koji Nakabayashi
Study on the Development of Carbon-coated Alumina Support for Hydrodemetallization
Koji Nakabayashi1, 2, Takashi Mashio1*, Takuya Ito1, , Jin Miyawaki1, 2, Seong-Ho Yoon1,2 1interdisciplinary Graduate School of Engineering Science, Kyushu University, Kasuga,
Fukuoka 816-8580, Japan. 2Institute of Materials Chemistry and Engineering, Kyushu University, Kasuga, Fukuoka 816-8580, Japan.
Abstract. Coke is easily deposited on surface of catalyst support during the hydrodemetallization (HDM) of heavy oil, which is one of the important reasons to deteriorate the catalytic activity. In order to decrease such a deposition on the surface of catalyst support, we tried to make pyrolytic carbon coating on the surface of alumina support. It is known that carbon has a lower surface affinity with coke than alumina catalyst support. Therefore, it is expected that the carbon coating on the catalyst support surface suppresses the coke deposition during HDM. Influence of the pyrolytic carbon coating on the porosity, the HDM performance, and the deposition amount of coke were carefully examined. We confirmed that the pyrolytic carbon coating on the catalyst support was effective to reduce the amount of coke deposition during HDM.
Link: https://www.youtube.com/watch?v=lAXU_FdzUu8&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=5&ab_channel=ICIMECE2020
Invited Speaker 6: Prof. Cucuk Nur Rosyidi
A Framework of Integrated Sustainable Make or Buy Decision Model Cucuk Nur Rosyidi
Industrial Engineering Department Universitas Sebelas Maret Jalan Ir. Sutami 36 A Surakarta
Abstract. Tolerance has been recognized as the connector between engineering design and manufacturing stages. It plays an important role in both stages and must be optimally determined to minimize several objectives such as manufacturing cost and quality loss. Considering the engineering design, the tolerance should be tightly set in order to get better quality. Conversely, considering manufacturing stage, the tolerance should be loosely set in order to make the manufacturing process less costly. Process and technological capabilities as well as limited production capacities made manufacturing companies to outsource some of their needed components to their suppliers. Hence, the manufacturing companies should decide which components have to make using its own production facilities and which one must be bought from the suppliers. These decisions can be made simultaneously with the determination of optimal tolerance. Due to the intense concerns on environment, sustainability gained more attention in recent years and attracted many researchers including in the field of make or buy decisions. We attempt to integrate the make or buy decisions with sustainability in the form of remanufacturing to determine the optimal component tolerance. We found that the Bass model, a recognized model to predict new product demand, can be integrated to make or buy decisions model specifically in determining the expected number of returned product to be remanufactured. We identify some problems in the integration such as the lead time which comes from the product useful life and time to collect the return product and also the representation of remanufacturing cost function in its relation with tolerance assignment, and considerations of single or multi manufacturing generations.
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Link: https://www.youtube.com/watch?v=hCKXA_0OP_Y&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=6&ab_channel=ICIMECE2020
Invited Speaker 7: Dr. Eko Prasetya Budiana
Modeling of Droplet Coalescence using Radial Basis Function Method Eko Prasetya Budiana1,a)*, Pranowo2, Dominicus Danardono Dwi Prija Tjahjana1
1Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jalan Ir. Sutami 36A, Surakarta 57126, Indonesia
2Department of Informatics, Faculty of Engineering, Universitas Atma Jaya Yogyakarta, Jalan Babarsari No. 44, Yogyakarta 55281, Indonesia
Abstract. Droplets coalescence was simulated using meshless radial basis function (RBF) method. The meshless RBF method was used to solve the Navier-Stokes equations in combination with the Cahn-Hilliard equations to track the interface between two fluids. In this work, the fractional step method is utilized to calculate the pressure-velocity coupling in the Navier-Stokes equations. The numerical results were compared with the data available in the literature to validate the proposed method. As a result, it was found that the numerical results conform well to the data available in the literature. The study investigated the effects of some parameters, such as viscosity, surface tension, and velocity of collision. The increase of the viscosity increases the collision time, and the increase of surface tension and collision velocity produces the shorter collision times.
Keywords: droplet coalescence, fractional step, radial basis function, Cahn-Hilliard equations
Link: https://www.youtube.com/watch?v=X-wX8gS92f0&list=PLxk03d9FJa_b4JjEBtOwIpRSIwdgsOVRB&index=7&ab_channel=ICIMECE2020
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CHEMICAL ENGINEERING
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PAPER ID: CE01
Facile Rheological Route Method for LifePO4/C Cathode Materials Production
Meidiana Arinawati1, Anjas P Hutama1, Cornelius S Yudha1, Mintarsih Rahmawati1 and Agus Purwanto1* 1Chemical Engineering Department, Universitas Sebelas Maret, Jl. Ir Sutami 36A Surakarta 57126
Abstract. LiFePO4/C cathode material is largely used in Li-ion batteries due to its low toxicity, non-hazardous and high stability features. A facile and simple approach in LiFePO4/C production using low cost materials is proposed. The effect of carbon addition during the formation of LiFePO4/C was investigated. Based on the XRD and FTIR analysis, olivine structured LiFePO4/C cathode material was successfully obtained via methanol based rheological method. The SEM result showed that the material has micron sized polyhedral shape. The electrochemical performance tests were conducted in an 18650 type cylindrical battery. The charge-discharge performances were tested at voltage range of 2.2-3.65 V using formation rate of 0.1 C. Based on the charge-discharge test, LiFePO4/30% sample had the highest specific capacity of 89 mAh/g and excellent rate performance as a result of successful carbon compositing in LiFePO4 material. This approach is promising to be adapted for mass production of LiFePO4/C. Link: https://www.youtube.com/watch?v=6L2WWYhb9Z4&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=1
PAPER ID: CE02
A Reductive Pre-treatment to Improve NCA Cathode Material Hydrometallurgical Recycle Process
A Jumari1,4,5, M Nizam2,5, E R Dyartanti1,5, Suranto4, C S Yudha,1,5, S U Muzayanha1,3, E Apriliyani1 and A Purwanto1,5,*
1Chemical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, 57126, Surakarta, Indonesia
2Electrical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, 57126, Surakarta, Indonesia
3Research & Technology Center, PT. PERTAMINA (Persero), Jl. Raya Bekasi Km. 20 Pulogadung, Jakarta 13920, Indonesia
4Environmental Science, Postgraduate Faculty, Universitas Sebelas Maret, Jl. Ir. Sutami No. 36A, 57126, Surakarta, Indonesia
5University Centre of Excelent for Electrical Energy Storage Technology, Universitas Sebelas Maret, Jl. Slamet Riyadi No.435, 57146, Surakarta, Indonesia
Abstract. NCA or LiNi0.8Co0.15Al0.05O2 (NCA) Battery is one lithium ion batteries (LIBs) that is often used in electric vehicles as an energy storage device due to its high capacity and energy density. But along with the popularity of electric vehicles, the production of NCA cathode materials has also increased so resulting in accumulation of LIBs waste in the future. The purpose of this study is to recycle NCA via hydrometallurgical route. The effect of reducing agent addition during the pretreatment process was investigated. Stearic acid, oxalic acid, citric acid and glucose were used as the reducing agent. Sulfuric acid and citric acid solution were used as the leaching agent. XRD analysis confirmed the occurrence divalent Ni due to reduction process. Based on the AAS analysis, it can be concluded that the reduction process affects the leaching behavior significantly. The highest leaching concentration of Ni and Co is obtained using glucose as the reducing agent during the pre-treatment. Link: https://www.youtube.com/watch?v=mU4HnFGmLpQ&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=2
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PAPER ID: CE03
Determination of Household Green Waste Fractions to Methane and its Economic Value
E Joelianto1* and H P Edyson2 1Instrumentation and Control Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung,
Bandung 40132, Indonesia 2Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University,
Bandung 40141, Indonesia
*E-mail: [email protected]
Abstract. The methane gas produced at the landfills has become one of the main causes of the global warming. On the other hand, solid waste has potentials as a new energy. One of the well-known methods in processing solid waste into a new energy is methanation or anaerobic fermentation process. This paper considers calculation of the solid waste fraction of green waste that can be released as methane from traditional market. The gas volume is measured by using U-pipe filled with water. The difference of water height in the U-pipe is used to calculate the formed biogas volume used to calculate the weight fraction of the methane and amount of profit which can be generated from the solid waste processing by using anaerobic fermentation. The profits are obtained from the use of methane as the source of electricity energy and the profit of selling compost from the fermented trash residue. The results of this research show that the solid waste fraction which can be released as methane has the value range 0.11% - 0.18%, the benefits that can be generated from anaerobic process for organic solid waste are 300,899,290.00 IDR annually for electricity energy and 24,432,222,254.00 IDR annually for compost. Link: https://www.youtube.com/watch?v=fTbEFmz5h9A&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=13
PAPER ID: CE05
Effect of Rotational Speed on Microstructure and Optical Properties of Bismuth Ferrite Oxide (BiFeO3)
Y Iriani1,*, R Suryana1, and E B Agustina2
1Department of Physics, Faculty of Mathematics and Sciences, Universitas Sebelas Maret Jl. Ir. Sutami 36A Kentingan, Surakarta 57126 Indonesia
2Graduate Physics Department, Universitas Sebelas Maret Jl. Ir. Sutami 36A Kentingan, Surakarta 57126 Indonesia
Abstract. BiFeO3 films were deposited on quartz substrate using chemical solution deposition (CSD) and spin coating techniques with variations of rotational speed (1000 rpm, 2000 rpm, and 3000 rpm) and several films (4 layers and 8 layers). It characterized microstructure of films using X-Ray Diffraction (XRD), morphology, and cross-section using SEM and optical properties using UV-Vis. The results of characterization showed that an enhancement rotational speed causes the intensity of crystal field orientation to decrease, crystallite size, and crystallinity are the same. Surface morphology is getting smoother, flatter, lower porosity and the grain to be homogeneous with thinner thickness. Addition on the number of films causes higher intensity, crystallite size and crystallinity are same. The film gets thicker, the morphology gets rough, and the boundaries between grains become clearer. Increasing the rotational speed and number of film causes the refractive index and extinction coefficient to be smaller. The light disperses measurement shows a linear relationship between photon energy and refractive index. Energy band gap generated between 2.2-2.5 eV. Link: https://www.youtube.com/watch?v=73jkr4HfHcY&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=3
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PAPER ID: CE06
Microstructure, Morphology, and Dielectric Properties of Ba1-xLaxTiO3 with Variation Mole Concentration of Lanthanum by Co-Precipitation
Method
U Ulfa1, Y Iriani1,2, K Kusumandari1,2
1Graduate Physics Department, Universitas Sebelas Maret, Jl. Ir. Sutami 36A Kentingan, Surakarta 57126
2 Physics Department, Faculty of Mathematics and Natural Sciences, UniversitasSebelas Maret, Jl. Ir. Sutami 36A Kentingan, Surakarta 57126
Email : [email protected]
Abstract. This study aims to determine the microstructure, morphology, and dielectric properties of Ba1-xLaxTiO3 modified with variations moles concentration of 10% and 15% Lanthanum at sintering temperatures of 1300oC and 1400oC for 4 hours. Ba1-xLaxTiO3 was synthesized using the co-precipitation method. The results of characterization using X-Ray Diffraction (XRD) showed that the greater concentration of La mole caused a diffraction angle shift to the right. The crystallite size decrease as the increasing concentration of La mole and sintering temperature. The smallest crystallite size (36.63 nm) belong to a sample of Ba0,85La0,15TiO3 sintered at 1400oC. The intensity and the crystallinity decreased with increasing concentration of La mole. Scanning Electron Microscopy (SEM) photographs showed that grain size got smaller with increasing La mole concentration. The dielectric constant obtained from the results of characterization using a Resistance Inductance Capacitance meter (RLC meter) showed that the higher the concentration of La mole added, the greater the dielectric constant produced. The highest dielectric constant was 414 belonged to the sample Ba0,85La0,15TiO3 sintered at 1400oC. Link: https://www.youtube.com/watch?v=POrf7PIvXMM&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=4
PAPER ID: CE09
Integral Composite Membrane: Effect of Different Concentration Polyvinyl Alcohol on the Characteristics of the Membrane and its
Performance Toward Fouling and Mercury Removal
N Z K Shaari1*, L H Rozlee1 and M F Basri1
1 Department of Chemical and Process, Faculty of Chemical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, MALAYSIA
Abstract. An integral composite membrane was fabricated from a blend of polysulfone/chitosan/polyvinyl alcohol (PVA) by using phase inversion method. In the fabrication process, volume of polysulfone and chitosan were fixed at 20 mL and 0.1 mL respectively, whilst concentration of PVA were varied at 1, 3 and 4 wt.%. The integral membranes were characterized in terms of thermal stability and water uptake. The performances were evaluated through pure water flux, antifouling properties, and mercury removal. Based on the results, it was found that membranes from polymer blend portrayed better thermal stability and hydrophilicity as compared to polysulfone membrane. The increase concentration of PVA resulted in better antifouling properties, which were shown through declining in irreversible fouling ratio (IFR) and increasing reversible fouling ratio (RFR). Membrane with 4 wt.% PVA was observed to have better antifouling behaviour, with 46% IFR and 56% RFR and exhibited good rejection of mercury ion (> 90%) from pure mercury solution. Link: https://www.youtube.com/watch?v=OetF_igXYhY&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=5
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PAPER ID: CE10
Influence of Reactive Ion Etching Time on Fabrication of Porous Silicon on Si (110) Substrates
R Suryana1*, M M Mas’ud1 and O Nakatsuka2
1Department of Physics, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A Kentingan Surakarta 57126, Indonesia
2Department of Materials Physics, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan
Abstract. Porous silicon (PSi) has been fabricated by photolithography and Reactive Ion Etching (RIE) with various etching times in the previous study. The PSi surfaces have the pore size in the range of 12.6-28.0 nm for PSi (111) and 17.4-37.7 nm for PSi (100). Meanwhile, the PSi has the resistivity around (1.14-2.60)×10-4 Ω.cm for PSi (111) and (3.85-9.03)×10-4 Ω.cm for PSi (100). In this study, N-type Si (110) substrate was used to form PSi with various etching times for 10, 20 and 40 min. The PSi samples were characterized by SEM, Dektak XT profilometer, UV-Vis and FPP equipment. PSi formed into a spherical shape which distributed throughout the Si surface. Pore sizes, pore depths and resistivity of patterned PSi increased as the etching time increases, i.e., 4.04 µm, 30.85 nm and 2.26×10-4 Ω.cm (10 min); 4.98 µm, 51.93 nm and 3.86×10-4 Ω.cm (20 min); 6.00 µm, 80.67 nm and 5.77×10-4 Ω.cm (40 min), respectively. This indicated that the pores could be considered as defects or dislocation inside material which resist electrons diffuse toward the electrode. Moreover, the PSi reflectance value decreases 30% to around 10% on the visible light range with the increasing of etching time. Link: https://www.youtube.com/watch?v=njZsshgJnI8&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=6
PAPER ID: CE11
Structural and Electrochemical Analysis of Iron Doping in LiN0.6-xMn0.2Co0.2FexO2 Battery
A R Nurohmah1,a), C S Yudha1,b), M Rahmawati1,c), A Jumari1,d), H Widiyandari2,e), and A Purwanto1,*)
1Department of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Surakarta, Central Java 57126, Indonesia
2Department of Physics, Faculty of Mathematic and Natural Science, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Surakarta, Central Java 57126, Indonesia
Abstract. Doping in Li-ion Battery cathode material has become an interesting subject around the world. LiNi0.6Mn0.2Co0.2O2 has become one of the cathode materials with the high energy density. According to its ability to form particles with a high atomic degree of homogeneity, the co-precipitation route has been the technology of choice for LiNi0.55Mn0.2Co0.2Fe0.05O2 (Fe-doped NMC622). In this study, Fe was used as a doping agent because of their high-energy metal oxygen bond dissociation, Oxalic acid is used as precipitant, while ammonia is used as chelating agent. Under the airstream, the oxalate precursor obtained was sintered. The characterization of the Fe-doped NMC622 is performed. Hexagonal-layered material structure shown in x-ray diffraction patterns. XRF analysis confirmed the composition of the final product. SEM (scanning electron microscope) study displayed the material's morphology. The electrochemical performance was achieved by a charge-discharge test at 1/10 C between 2-4.8 V. The Fe doped NMC622 exhibited enhancing cycle efficiency and structural characteristic compared to the un-doped NMC622. Link: https://www.youtube.com/watch?v=fHxsHQDiHLY&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=7
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PAPER ID: CE12
Preliminary Investigation of NiO Anode for NCA/NiO Battery from Spent Catalyst Recovery
S S Nisa1, A R Nurohmah1, C S Yudha1, M Rahmawati1, T Paramitha1, H Widiyandari2, E R Dyartanti1, A Purwanto1*
1 Departement of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami no. 36A, Surakarta, Central Java, 57126, Indonesia
2Departement of Physics, Faculty of Mathematic and Natural Science, Universitas Sebelas Maret, Jl. Ir. Sutami no. 36A, Surakarta, Central Java, 57126, Indonesia
Abstract. Spent nickel catalyst is the catalyst residue that has lost its catalytic function. Spent nickel catalyst contains Ni metal which is already high and environmentally hazardous. This problem can be solved by recovery the spent nickel catalyst as an anode and combined with lithium nickel cobalt oxide (NCA) as a cathode for lithium ion battery. A study about it has never been conducted. The method used to treat the spent catalyst was acid leaching using 1 M citric acid and 4 M hydrochloric acid at 70-80oC for 2 hours, then continued with precipitation and thermal decomposition. Another method employed was direct sintering at 800oC for 12 hours. Material characterisation was carried out by X-Ray Diffraction (XRD), Atomic Absorption Spectrophotometry (AAS), Fourier Transform Infra-Red (FTIR), and X-Ray Fluorescence (XRF), while electrochemical performance was carried out by NEWARE Battery Analyzer and BTS software. The results of this study indicate that Ni can be recovered with hydrochloric acid as much as 15.387 gr higher than citric acid as much as 11.831 gr from 20 gr sample. The XRD pattern also indicates the presence of crystals NiO I and NiO II in the leached and sintered material. The results of acid leaching in the form of NiO I was perfectly formed, but NiO still has a little impurity. Electrochemical performance was tested with a cylindrical battery resulting in a discharge capacity of 37.210 mAh g-1. Link: https://www.youtube.com/watch?v=Utcgjk1T1rE&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=8
PAPER ID: CE13
Synthesis LiFePO4 at Various Atmosphere Condition
I P Lestari1, M Arinawati1, A P Hutama1, C S Yudha1, M Rahmawati1, H Widiyandari2, A Nur1, A Purwanto1*
1Departement of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami no. 36A, Surakarta, Central Java, 57126, Indonesia
2Departement of Physics, Faculty of Mathematics and Natural Sciences, Universitas Sebelas Maret, Jl. Ir. Sutami no. 36A, Surakarta, Central Java, 57126, Indonesia
Abstract. LiFePO4 is considered the most environmentally friendly, inexpensive, abundant, has good cycle stability and thermal stability. However, LiFePO4 has the main disadvantage of potential voltage and conductivity which is relatively lower than other batteries. This can be overcome by adding carbon and reducing particle size. The method used in this research is the rheological phase method. This method was chosen because the material used is easy to obtain and the price is cheap, no requires a lot of tools, and good homogeneity. LiFePO4 is very sensitive to direct air. So in this study an evaluation of the effect of argon gas, hydrogen, and nitrogen on the material. LiFePO4 analyzed its morphology with SEM (Scanning Electron Microscopy), its crystallinity with XRD (X-Ray Diffraction) and functional group of LiFePO4 with FTIR (Furier Transformation Infra-Red). Based on the characterization result, the optimum synthesis product continued battery performance test. LiFePO4 H2-Ar produces the best battery capacity compared to other gases because it uses reducing gas which can increase the carbon content of the material.
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Link: https://www.youtube.com/watch?v=QX1JzQeW5dQ&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=9
PAPER ID: CE14
Fabrication of PVDF/SiO2 Nanofiber Membrane as A Separator of Li-ion Battery by Double Jet Sprayers Electrospinning Method
H Widiyandari1,4, O A Putra1, A Purwanto2,4*, and A Subagio3 1Department of Physics, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Ir. Sutami
36A Surakarta, Central Java 57126, Indonesia 2Department of Chemical Engineering, Faculty of Engineering, Sebelas Maret University, Ir. Sutami 36A
Surakarta, Central Java 57126, Indonesia 3Department of Physics, Faculty of Science and Mathematics, Diponegoro University,
Semarang 50275, Indonesia 4University Center of Excellence for electrical energy storage technology, Sebelas Maret University
Slamet Riyadi 435 Surakarta Indonesia [email protected]
Abstract. The temperature of the lithium-ion battery while running the electric vehicle becomes a severe safety issue. One way to keep the battery work at high temperatures is by a modified battery separator. The separator was used as a component to secure battery by preventing short circuit current between the electrode of opposite polarity. This current research reported the high-temperature shrinkage and excellent mechanical strength membrane separator based on PVDF/SiO2 nanofiber produced by double jet sprayers electrospinning method on rotating cylinder collector. The independent variable in this research was the variation of a SiO2 polymer at 0 ppm, 500 ppm, 1000 ppm, and 3000 ppm. The results of PVDF/SiO2 nanofiber formed have beaded fiber structure with the average size of fiber's diameter of ~192 nm. The highest amount of SiO2 addition (SiO2 3000 ppm) on PVDF nanofiber's membrane causes an increase of porosity up to 69%. The additional of SiO2 also strengthen its mechanical and thermal shrinkage properties to 150oC. In the testing of the charge-discharge battery using separator PVDF/SiO2 nanofiber, the specific capacity value is 181 mAh/g. Link: https://www.youtube.com/watch?v=zMPea1M0JOA&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=10
PAPER ID: CE16
Synthesis of Modified Graphite with High Crystalline Na-LTO by Simple Doping Method.
Muhamad Iqbal Putra1, Soraya Ulfa Muzayanha1, Yazid Rizal1, Fadilah1, Hendri Widiyandari2, Agus Purwanto1*
1Department of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Surakarta, Central Java 57126, Indonesia.
2Department of Phyics, Faculty of Mathematic and Nature Science, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Surakarta, Central Java 57126, Indonesia.
Abstract. Graphite doped with Na-Li4Ti5O12 (Na-LTO) for lithium-ion batteries with stable rateability were prepared in a short time by simple grounding which followed with the short calcination time. High crystalline Na-LTO improved the diffusivity of the Li-ion kinetics and stability. Therefore, Graphite/Na-LTO (G-NaLTO) was compared with the pure graphite to find out the differences in terms of XRD pattern and electrochemical performance. XRD analysis showed there was no significant differences pattern from G-NaLTO with commercial graphite. In terms of electrochemical performance, G-NaLTO which was doped by 1 wt% Na-LTO, presented a high initial charge capacity 356.69 mAh g-1 at 0.1C and stable discharge
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rate-capability at 0.2C and 1C were 264.64 mAh g-1 and 220.65 mAh g-1, respectively, after 15 cycles. G-NaLTO with a composition of 3 wt% Na-LTO shows a decreasing electrochemical performance so it can be concluded that the addition of 1 wt% LTO by the doping method is the most optimal. Link: https://www.youtube.com/watch?v=1rNKBN6taIk&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=11
PAPER ID: CE17
Recent Development of Polyvinylidene Fluoride/Cellulose Membranes Electrolyte Separator for Lithium Ion Batteries
Dyartanti E R1,2*, N Sunaryati1, R R Alhakim1, L N Putri1, A Y M Putri1, A R Nurohmah1, S S Nisa1 1 Departement of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami no.
36A, Surakarta, Central Java, 57126, Indonesia 2 University Centre of Excellence for Electrical Energy Storage Technology, Universitas Sebelas Maret,
Surakarta, Indonesia
Abstract. Lithium ion batteries (LIB) are important energy storage system. As one component in a LIB, the separator has an important role in the safety of LIB. Separators have porous structures that make it possible to transfer lithium ions between anode and cathode. This paper discusses the method for making separators with the main material as PVdF and cellulose. Such as casting, phase inversion, paper making, and electrospinning. So, we found two potential methods that can be developed in preparing lithium-ion battery separators, casting and electrospinning. Casting has benefits like a simple preparation step and does not require much equipment, but the weaknesses are expensive processes. While the electrospinning step has advantage such as an inexpensive process, but has the disadvantage of needing much equipment. Link:https://www.youtube.com/watch?v=TSNiyFNjOhY&list=PLxk03d9FJa_aOJ_xHCt5j-JYHhalTl2hC&index=12
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MECHANICAL ENGINEERING
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PAPER ID: ME001
Mini Review on Eddy Current Brakes Parameter
M R A Putra1, M Nizam2, D D D P Tjahjana1 and A R Prabowo1 1Department of Mechanical Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami No.36 A, Pucangsawit,
Kec. Jebres, Kota Surakarta, Jawa Tengah 57126 2 Department of Electrical Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami No.36 A, Pucangsawit, Kec.
Jebres, Kota Surakarta, Jawa Tengah 57126
Abstract. The need for braking systems has increased. The widely used braking system is a friction brake. The use of friction brakes has a problem in maintenance intervals and the risk of failure due to heat generation. Research and the development of the braking system have carried out. Eddy Current Brake (ECB) is an alternative braking system. ECB is braking that uses eddy currents as a source of braking force. Many parameters need to consider in implementing the ECB. There have been many studies on the working parameters of the ECB. However, the previous research has researched the effects of parameters by make experiments or mathematical models. This article provides an analysis of the recent research about the ECB performance parameters. From the review of the previous study, it conducted that better performance of ECB is affected by the density of the use of magnetic flux Link: https://www.youtube.com/watch?v=KR8qJVyq8UE&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=2&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME002
Difatogram, Spectroscopy, and Surface Energy Alkaline Treated Cantala Fiber-Unsaturated Polyester-Microcrystalline Cellulose-Composite
Sakuri Sakuri1,a), B.Sugiantoro1), S. Sutarno2), R.A.N. Al-Hakim3)
1) Department of Mechanical Engineering, STT Wiworotomo, Purwokerto, Central Java 53134, Indonesia 2) Department of Mechanical Engineering, Universitas Muhammadiyah Purwokerto Indonesia
3)Department of Mechanical Engineering, Universitas Pancasakti Tegal Indonesia [email protected]
Abstract. This study aims to determine the treatment of alkali on cantala fiber (CF) and the added of microcrystalline cellulose (MCC) on composites. (CF )soaked in a solution of sodium hydroxide (NaOH) 6 % wt for 0 h, 3 h, 6 h, 9 h, 12 h, and 15 h. The fiber was tested Xr-diffraction and showed an increase in crystallinity, due to the loss of amorphous in the fiber. The highest crystallinity index was obtained by soaked 6 h CF. FTIR testing shows that the fiber has a change in chemical composition with alkali treatment. The examination of contact angle and surface energy shows an increase in surface roughness so can increased interface adhesion between the fiber and the matrix. Treatment of CF and the addition of microcrystalline cellulose on composites by the vacuum infusion method can increase the tensile strength and modulus of the composites. The highest tensile strength on a composite of 83.82 MPa and the highest modulus of 2324.78 MPa was obtained on CF with an alkaline treatment of 6%, soaked of 6 h, with addition 5 % wt of MCC.
Keywords: difatogram, cantala fiber, alkali, microcrystalline cellulose, composite. Link: https://www.youtube.com/watch?v=Kjr5Hij-Z-Q&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=3&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME003
Design a Mechatronic System (Robot) to Transfer Table Tennis Balls Md M Rahman1*, W J Yahya2, K Mondal3
1, 2, 3 Department Mechanical Precision Engineering, Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Jalan Semarak,
Kuala Lumpur-54100, Malaysia
Abstract. Advancement of technology and human needs has contributed to the convergence of multiple engineering disciplines. Mechatronics engineering is an applied discipline that focuses on the design and study of complete engineering systems including mechanical, electrical, electronic, and control systems. This paper is concentrated on design a mechatronic system (robot arms) to transfer Ping-Pong balls. The aim of this paper is to explain the design process of producing a robot that will compete in a competition. The robot will be operated either wired or wireless within its designated area in performing the ball collection during a two-round match. Duration of 10 minutes is going to be allocated for every round. Top two teams that collect most balls between the 2 rounds will proceed to subsequent round (if quite 4 teams are competing). The performance evaluations will be in terms of number of Ping-Pong balls successfully placed inside the collection buckets.
Keywords: Robot arms, Mechatronics system, Control system. Link: https://www.youtube.com/watch?v=p-480nND6EE&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=4&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME004
Collaborative Robot Safety for Human-Robot Interaction in Domestic Simulated Environments
Tamanna E Kaonain1*, Mohd Azizi Abdul Rahman2, Mohd Hatta Mohammed Ariff 3, Wira Jazair Yahya4 and K. Mondal5
1,2,3,4 Advanced Vehicle System Research Group, Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Jalan Semarak, Kuala Lumpur-54100, Malaysia
5 Department Mechanical Precision Engineering, Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Jalan Semarak, Kuala Lumpur-54100, Malaysia
Abstract. Human-robot interactions carry several challenges, the most important being the risk of injury to the human. In industrial robotic systems, robots are mostly caged and isolated from humans in a safety guard environment. However, as time has passed, the use of domestic robots has emerged, leading to a high need in research on robot safety in domestic settings. Human-Robot collaboration is still in an initial stage; thus, safety assessments in domestic environments are critical in the field of collaborative robots or cobots, with simulations being the first stage of research. In this study, a preliminary investigation on the simulation of human’s safety throughout human-robot interactions in home surroundings with no safety fence is presented. A simulation model is designed and developed with Gazebo in the Robot Operating System, ROS-based, to simulate the human-robot interaction. In the robot trajectory, safety interaction can be simulated. In one example, the robot’s speed would be reduced before a collision with a human about to happen, and it can be minimized the risk of the collision or reduce the damage of the risk. After the successful simulation, this can be applied to the real robot in a domestic working environment.
Keywords: Safety, Human-robot interaction (HRI), Cobots, Trajectory, Robot Operating System. Link: https://www.youtube.com/watch?v=fdtnxcH8vwM&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=5&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME005
Knowledge, Trust and Involvement of Vocational School Students in the Indonesian Geothermal Energy
K M Wibowo1*, N A Pambudi2, S Hadi3, A R Prabowo3 1 Graduate School of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
2 Mechanical Engineering Education, Universitas Sebelas Maret, Surakarta, Indonesia. 3 Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract. Public knowledge and perception are the main factors in geothermal development in Indonesia, many people think that geothermal development has a high risk. Knowledge becomes the basis because it includes psychological factors that have an impact on public acceptance. Knowledge enhancement can be done by investigating students' perceptions of acceptance and involvement in geothermal management. The method used to find out is the questionnaire and interview method by processing quantitative descriptive qualitative standards. Measurements on this instrument use a Likert scale as a reference in determining the value of the instrument's answers. Each instrument item contains 5 (five) grading answers. The results showed the level of students' knowledge about the use of geothermal at 83% agreed or high level, where many students agreed that geothermal could be used for electricity production. In the aspect of trust, 32% of students stated that the use of geothermal energy could prevent increased global warming. In the next question, it was found 53% of students agreed that geothermal energy was used in the future. Link: https://www.youtube.com/watch?v=G1AezzEv6Sw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=6&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME007
Design of Fishing Vessel 5 GT for Traditional Fishing Community Activities
S F Khristyson1*, Jamari1 and A P Bayuseno1 1Departemen of Mechanical Engineering, Faculty of Engineering, Diponegoro University
Jl. Prof. Soedarto S.H. Tembalang, Semarang 50275
Abstract. Develop of fishery port area in the Semarang city, therefore need improve for a fishing vessel design that inaugurated the representative of the port area Tambak Lorok. The vessel was also not equipped with hydrostatic calculations, stability and so on, then most fishermen in Indonesia use wood as a material for the creation of fishing vessels. The purpose of this research is to get design criteria and dimension of fishing vessel and determine the construction design criteria of the right fishing vessel performance in the Tambak Lorok sea area Semarang accordance with IMO (International Marine Organization) standard. Designation of the method as the efforts to produce optimization design output and meet the various criteria required with comparison method using the 5-size main ship dimension, as well as for the design and calculation of criteria with ship design software. This design method requires average size comparative vessel capable of developing and influence the size and speed of 5 GT ship model. The results this design method requires a comparative vessel capable of developing and influence the size and speed of 5 GT ship model. Analysis results of designing fishing vessel show the development of best ideal size on 5 GT ship class to operate in the cruise area shallow water. Practical stability and resistance diagrams to predict ship performance and provides the prediction procedure showing how to develop such diagrams using the available main dimension ship data. Link: https://www.youtube.com/watch?v=2HQzggaiv2c&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=7&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME009
The Influence of Zalacca Short-Fiber Addition with Random Orientation on the Characteristics of Low-density Polyethylene Matriced Composites
W P Raharjo1, 2*, D Ariawan1, 2, 3 and B Kusharjanta1, 2, 3 1Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, Indonesia 2Research Group of Non-metal Materials Development, Universitas Sebelas Maret, Surakarta, Indonesia
3Laboratory of Materials Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract. The aim of this research is to study the influence of zalacca fiber addition on physical, chemical, and mechanical characteristics of LDPE matriced composites fabricated by hot-pressing method. The fibers were short, random-oriented and varied as 10, 20, 30, 40 and 50 wt. %. The examinations included density testing, XRD, TGA-DTA, tensile and flexural testing, SEM and DMA. There was a reduction in composite density due to fiber loading. The zalacca fiber addition did not change degree of crystallinity of composites significantly. There was a bit decrease in thermal stability caused by fiber addition. The composite tensile strength and modulus of elasticity were enhanced with addition of zalacca fibers up to 40 wt. %. Tensile strength and elastic modulus declined due to further addition of fibers. At 40 wt. % fiber loading, there were several fiber fractures indicating that the applied load was borne effectively by the fibers after transferred from LDPE matrix. The fiber loading induced a meaningful improvement of flexural strength and modulus. There was a raise in storage and viscous modulus of composites due to fiber addition. However, fiber loading decreased loss factor, thereby reducing their damping capacity.
Keywords: zalacca fibers, LDPE-matriced composites, random orientation, hot press Link: https://www.youtube.com/watch?v=tVuJnIwtqFY&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=8&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME010
Design of Kaplan-Series Propeller for Commercial Submarine by Varying Rake Angle and Number of The Blade to Obtain the Highest
Thrust and Efficiency Y D Putra1, A F Zakki1 and A Trimulyono1*
1 Department of Naval Architecture, Faculty of Engineering, Diponegoro University Jalan Prof. Soedarto, S.H., Kampus Undip Tembalang, Semarang-50275, Indonesia
Abstract. The use of submarines has covered various fields, for instance, is the exploration and exploitation of offshore petroleum. Submarine production and operation costs are still very expensive. The efficient use of fuel can reduce operating costs and increase cruising time for submarines. It is necessary to design the most optimal propeller with the highest and most efficient thrust. In this study, a commercial submarine is applied with the Kaplan-series propeller and nozzle intended to increase propeller thrust. Based on previous research it is recommended that propeller design should involve the hull itself. Therefore, the submarine hull form will be simulated together with the propeller. By varying the number of blades and rake angles of each propeller, it is expected to obtain the highest thrust. There are 3 types of the number of a blade that used in this study i.e. 6, 8, and 10 blades. While the variation rake angles are 50, 100, and 150. The present study uses computational fluid dynamics to predict thrust and torque in open water conditions. The turbulence flow k-epsilon model was used in the simulation. The results revealed that Ka1080 Propeller with 5o rake angle has
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the highest thrust and torque, which is 201 kN and 181 kN.m. on the other hand, propeller Ka680 with 15o rake angle has the highest efficiency reaching 50.9%. Link: https://www.youtube.com/watch?v=nCH83IBW8Xs&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=9&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME011
Numerical Simulation of Long Duration Sloshing using Smoothed Particle Hydrodynamics
A Trimulyono1*), A F Rahardjo1, I P Mulyatno1 and P Manik1 1 Department of Naval Architecture, Faculty of Engineering, Diponegoro University Jalan Prof. Soedarto, S.H., Kampus Undip Tembalang, Semarang-50275, Indonesia
Abstract. The sloshing phenomenon is one of the events in a liquid carrier vehicle such as airplanes and ships. Sloshing is a dangerous phenomenon because sloshing can effect ship motions that create excessive motion in liquid carrier vehicles. Long duration sloshing is challenging problems to solve using smoothed particle hydrodynamics (SPH). Stable, accurate, and reliable computation time is tried to achieve by many researchers. In this study, long-duration sloshing in the prismatic tank is tried to reproduce using single-phase and two-phase SPH. Firstly, the experiment is carried out using prismatic tank, with three pressure sensors, and a forced oscillation machine. In this study, only roll motion is used to reproduce hydrodynamics pressure with a low filling ratio. The results show SPH could reproduce fairly hydrodynamics pressure with spurious pressure oscillation. Static pressure is well reproduced by SPH. Link: https://www.youtube.com/watch?v=Zvcb28fjDeI&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=10&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME012
Design of Hug Machine Portable Seat for Autistic Children in Public Transport Application
I Y Afif1*, M I Maula1, M B Aliyafi1, A L Aji1, T I Winarni2, and J Jamari1 1Department of Mechanical Engineering, Faculty of Engineering, Diponegoro University,
Semarang, Indonesia 2Faculty of Medicine, Diponegoro University, Semarang, Indonesia
Abstract. The prevalence of autism in Indonesia was estimated approximately 2.5 million people. There are at least 500 new cases was diagnosed annually. Self-injurious behaviour is one of the most prevalence in autistic children. Only a few studies had been done in Indonesia regarding autism issue. Therefore, this study aims to design a hug machine portable seat for autistic children, called Autism Hug Machine Portable Seat (AHMPS), which can be used in public transportation (bus and train) to provide safety and for comfortability and can be used for therapeutic aid with deep pressure stimulation. The design was based on the morphological and decision-making matrix to get the best concept. The results of this study were obtained a selected design concept and certain technical specifications for the AHMPS.
Keywords: Autism, design, hug machine, deep pressure Link: https://www.youtube.com/watch?v=jqac2t8vSmA&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=11&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME013
Simulation of Thermal Dispersion in Location of Development of Diesel Power Plant using Computational Fluid Dynamics Methods MSK Tony Suryo 1, Eflita Yohana1, Tea Restiana2, Ramanuzha Gunawan3*, Khoiri Rozi!
1 Lecturer in Mechanical Engineering S-1 Study Program, Faculty of Engineering Diponegoro University, Jl. Prof. Sudharto, SH. Street, Tembalang-Semarang, Central Java, Indonesia
2 Bachelor of Engineering Study Program Students, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudharto, SH. Street, Tembalang-Semarang, Central Java, Indonesia
3 Student in Mechanical Engineering S-1 Study Program, Faculty of Engineering, Diponegoro University, Jl. Prof. Sudharto, SH. Street, Tembalang-Semarang, Central Java, Indonesia
Abstract. Electrical energy is one of the important energy needs in human life. To meet the electricity needs in the North Maluku area, it was planned to build a diesel power plant (PLTD) in the coastal area of Halmahera. In the activity of the power plant, it produces heat wastewater from the rest of the radiator cooling process. This study, conducted a numerical simulation to determine the thermal dispersion pattern of waste heat from PLTD cooling water in Halmahera waters. Modeling the dispersion of heat waste temperature of PLTD cooling water is carried out using the Ansys CFD (Computational Fluid Dynamics) method in 3D. The input data are in the form of heat water discharge of 4,000 tons/hour, with heat wastewater temperature 37.5 °C. Ambient seawater temperature is 30.5 °C and seawater density is 1022 kg / m3. Hydrodynamic modeling of oceanic currents is modeled with two variations, namely constant current of 0.4 m/s and UDF current. UDF currents have different current values for each depth with a current velocity of 0.005 m/s up to 0.4 m/s. The simulated results of a constant current show the spread of heat to the environment occurs as far as 210 m to the north of the discharge outlet. The highest temperature value is 37.14°C, the lowest is 30.8°C. For these UDF current models, the heat spread is 210 m to the north of the discharge outlet with the highest temperature value is 37.13°C the lowest is 30.61°C. Link: https://www.youtube.com/watch?v=14LfvRu6qlk&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=12&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME015
Design Strategy for Making Sustainable Mosque B I R Harsritanto1*, S Nugroho1, F Dewanta2, A R Prabowo3
1Architecture Department, Engineering Faculty, Universitas Diponegoro, Semarang, Indonesia 2School of Electrical Engineering, Engineering Faculty, Telkom University, Bandung, Indonesia 3Mechanical Departement, Engineering Faculty, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract. Built environment plays important roles as climate change agents. Natural resource exploitation, energy consumptions and waste management need to be built for more environment friendly. Mosque is religious building which built in every space on earth, since quarter of world population is moslem. That situation brought an urgency for making mosque more sustainable and friendly to the natural environment. Carrying that facts, this paper aimed to suggest a design strategy for making sustainable mosque. Through collaboration of passive design strategy, present technologies literatures and a study case, this paper shortlisted major design strategies in: 1. Building layouts; 2. Lighting strategy; 3. HVAC strategy; 4. Water conservation strategy and the main part is IT. By keeping those major design strategies, mosque can be made more environmentally sustainable. Several design recommendations are suggested in each major design strategy that may bring help for making sustainable mosque on every space in this earth Link: https://www.youtube.com/watch?v=KyBKnOZgk58&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=13&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME016
Design of Hip Prosthesis to Reduce Impingement and Wear: A Literature Review
E Saputra1,4, I B Anwar2,4, J Jamari3*, and E van der Heide4 1Department of Mechanical Engineering, State Polytechnic of Semarang, Semarang, Indonesia
2Orthopaedic and Traumatology Department, Prof dr R Soeharso Orthopaedic Hospital, Surakarta, Indonesia 3Laboratory for Engineering Design and Tribology, Department of Mechanical Engineering, Diponegoro
University, Semarang, Indonesia 4Laboratory for Surface Technology and Tribology, Faculty of Engineering Technology,University of
Twente, Enschede, The Netherlands [email protected]
Abstract. One of the most effective surgical procedures in the orthopedic field to solve damaged hip joint problems is total hip arthroplasty (THA). The damaged hip joint is replaced with an artificial hip joint so the patient can return to normal activities which have certain limitations. However, the hip prosthesis sometimes experiences some problems after THA. A common problem that occurs after THA is dislocation, where the dislocation of the hip prosthesis is the release of the femoral head against the acetabular liner or cup. At least dislocations divided to be two types, namely early and late dislocation, where the early and late dislocations are associated with impingement and related to wear, respectively. Many researchers proposed solutions to overcome impingement and wear by expanding the range of motion and improving the quality of implant material, respectively. Based on the literature study, it was concluded that the combination of dual mobility design and cross linked material could reduce impingement and wear.
Keywords: Hip total arthroplasty, Dislocation, single mobility, dual mobility Link: https://www.youtube.com/watch?v=TuEDNXgRkug&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=14&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME017
Semi-Active Vehicle Suspension With the Application of SMC for the Design of Feasible MR Damper
R Lullus Lambang G Hidayat1*, Ubaidillah2, Budi Santoso2 and Fitrian Imaddudin2 1 Doctoral Program of Mechanical Engineering, Engineering Faculty, Universitas Sebelas Maret,
Surakarta 57126, Indonesia 2 Department of Mechanical Engineering, Engineering Faculty, Universitas Sebelas Maret,
Surakarta 57126, Indonesia [email protected]
Abstract. This paper discusses the initial steps to design a magnetorheological (MR) damping device for vibration control applied to vehicle semi-active suspension systems. The type of MR damper device along with the selected control strategy is very important to obtain high efficiency and performance. Sliding Mode Control (SMC) is the preferred control strategy for use along with MR tools. The damping force obtained from the application of SMC is usually have a sudden change and chattering. By using a switching action based on a skyhook model, this research obtains damping forces with minimal sudden changes and minimal chattering, so that it can be feasibly implemented to an MR damper. In addition, this research is also managed to show an accordance of the force of MR damper calculated by Bouc-Wen model and the damping force obtained from the SMC. Link: https://www.youtube.com/watch?v=0SXO9DND454&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=15&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME019
Characterization of Calcium Hydroxide-treated Zalacca Fibers for Improving Properties as Reinforcement for Composites
W P Raharjo1, 2*, W W Raharjo1, 2, 3 and B Kusharjanta1, 2, 3 1Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, Indonesia 2Research Group of Non-metal Materials Development, Universitas Sebelas Maret, Surakarta, Indonesia
3Laboratory of Materials Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract. Chemical treatment is done to enhance characteristics of plant fibers and its interfacial compatibility with polymer matrix. Calcium hydroxide is an environmental-friendly alternative. This research aims to explore the influence of calcium hydroxide treatment on chemical, physical, thermal, morphological, and mechanical characteristics of zalacca fibers as reinforcements for composites. The time of treatment were varied for 24, 48, and 72 h. Fiber content analysis, XRD, FTIR, TGA-DTA, SEM, density, and single fiber tensile testing were performed. The percentage of cellulose was decreased meanwhile hemicellulose and lignin were increased. There was a decrease in crystallinity and crystallinity index after Ca(OH)2 treatment. The treatment induced some chemical groups correlated to the slight increase of lignin and hemicellulose percentage. There was an improvement of thermal stability of the fiber up to 200oC. The observation using SEM revealed that there were cleaning and roughing effect on fiber surface. There was no significant change in fiber density due to the treatment. However, the tensile strength and elastic modulus were improved after Ca(OH)2 treatment but the decline happened in a longer time of treatment. Accordingly, Ca(OH)2 treatment up to 24 h is appropriate in enhancing the properties of zalacca fibers as composite reinforcements.
Keywords: zalacca fibers, Ca(OH)2 treatment, crystallinity, surface morphology, thermal stability Link: https://www.youtube.com/watch?v=2t6Ps93afUc&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=16&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME020
Development of Utilization Alkali-treated Bamboo Fiber as A Strengthener in Thermoset and Thermoplastic Composites
Komar Roni1, Wijang Wisnu Raharjo1*, Dody Ariawan1, Ubaidillah1, and Zainal Arifin1
1 Mechanical Engineering Program, Faculty of Engineering, Universitas Sebelas Maret Jl. Ir. Sutami no.36A, Kentingan, Surakarta, Central Java, Indonesia
* Corresponding Author Email: [email protected]
Abstract. The increasing concern over environmental problems and the demand for renewable raw materials continues to increase, making researchers must find the right solution to overcome these problems. One solution is to reduce the use of synthetic fibers, which can replace natural fibers. This article is to review the use of bamboo fiber as a reinforcement to improve the physical and mechanical properties of composites, starting from the manufacturing process to its future potential. The matrix, which usually used as a binder of bamboo fiber, is thermoset and thermoplastic. As time goes by, the matrix becomes more popular. The method of making composites with Hot Press has a significant effect on composite results. The preparations and parameters involved during the process of making bamboo fiber composites with thermoset and thermoplastic matrices have a considerable impact on the results of the physical and mechanical properties of composites. Alkali treatment can eliminate hemicellulose, lignin, wax, and oil, which cover the surface of the outer walls of natural fiber cells and increase the surface roughness of the fibers, thereby increasing the bond between the polymer and the fiber. The determination of fiber composition variation plays a significant role in the physical and mechanical properties of composites. Too much pressure can damage the fiber, while too low pressure results in poor lamination consolidation. The processing temperature results in a better interface wetting between the fiber and the matrix. Holding time produces a more reliable bonding interface by
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removing the air gap that induced during pressing between the fiber and the matrix, thereby increasing tensile strength and modulus. The utilization of bamboo fibers to reduce synthetic fibers has opened opportunities for academics and industry to design sustainable modules to utilize bamboo fibers in the future. Making bamboo fiber-based composites with thermoset and thermoplastic matrices can reduce environmental problems and can be developed into effective biocomposites. Added with the advantages of thermosets and thermoplastics such as resistance to heat and chemicals even in extreme environments, flexible and recyclable, so that it has good potential in the future.
Keywords: Bamboo, Composite, Hot Press, Thermoplastic, Thermoset Link: https://www.youtube.com/watch?v=Zn0cKpuvsVA&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=17&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME021
Utilization of Bamboo Fiber in the Development of Environmentally Friendly Composite – A Review
G Pramudi1*, W W Raharjo1*, D Ariawan1, Ubaidillah1, Z Arifin1 1Mechanical Engineering, Sebelas Maret University of Surakarta 57126 Indonesia
Abstract. This paper will review the parameters that affect the tensile strength of the use of bamboo fibres in thermoplastic composites. Natural fibres considered to be more environmentally friendly and easily degraded than synthetic fibres. Bamboo has a tensile strength that is not inferior to synthetic fibres. The tensile strength of bamboo fibres influenced by the parameters from the original physical properties of bamboo. The parameters that influence are species, age, and bamboo parts. This difference generally caused by lignin content in bamboo fibres. Lignin content will reduce the tensile strength of fibres. Therefore, bamboo fibre treatment applied as an effort to reduce lignin levels. Various treatments with chemical solutions have bee proven to reduce lignin levels. The selection and proper treatment of bamboo fibres will increase the tensile strength of the fibre. There will also affect the bond between the fibre and the matrix. However, in general, the relationship between natural fibres and thermoplastic matrices is bad. There is because there is no match between natural fibres and thermoplastic matrices. So, the selection of a matrix that matches the characteristics of the fibre must be considered. Pure and recycled matrix have very different characteristics and tensile strengths. In this paper, We have reviewed various sources of bamboo fibres, mechanical properties, modification of bamboo fibres, and effects of treatment on bamboo fibres. The main applications of bamboo have bee summarized as well as effective use as reinforcement for composite polymers. Link: https://www.youtube.com/watch?v=-SeGWaNyQIw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=18&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME022
Parameters of Savonius Type Hydrokinetic Turbine to Enhance Efficiency
Rieky Handoko1*, Syamsul Hadi1, Danardono1, Ubaidillah1, Zainal Arifin1
1 Mechanical Engineering Department, Sebelas Maret University. [email protected]
Abstract. Increasing energy requirements accompanied by high fossil fuel emissions will lead to energy crises and the greenhouse effect in the future. These factors encourage the development of renewable energy. Hydropower can be one alternative energy to meet the energy demand. Hydrokinetic turbine is one of the latest technologies that utilize energy from water flowing in rivers, waterways, drainage in buildings, etc.
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This paper presents a review of hydrokinetic theory as an energy conversion system from flowing water with reference to the wind energy system. The most discussed type of turbine is a hydrokinetic savonius turbine with a description of the benefits, weaknesses, strengths, and conditions according to the application. Hydrokinetic savonius turbine is the most discussed turbine because of the ability of this turbine to work at low fluid flow rates in rivers and waterways. But the weakness of Savonius turbine is that it has low efficiency. Several experimental studies and numerical calculations by varying the design and parameters of the turbine have been carried out to improve its efficiency. The following parameters have been explained which affect the performance of hydrokinetic savonius turbines which are expected to be useful for future research to improve turbine efficiency. Link: https://www.youtube.com/watch?v=uXrNYHXv_q8&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=19&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME023
The Characteristics of LPG Detonation Wave Propagation Behind Porous Media Model
J Sentanuhady1, J A Tuasikal1, W Prasidha1*, and A I Majid1
1 Department of Mechanical and Industrial Engineering, Faculty of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Kampus UGM, Yogyakarta, 55281 – Indonesia
Abstract. LPG-air mixture enriched with oxygen is usually used for generating heat in industry sector. However, it is possible that LPG-oxygen will mix and react independently and the mixture could generate detonation wave. This condition could harm people, environment, and piping system, thus detonation quenching to guarantee safety becomes very important. The present study aims to investigate the characteristics of the detonation wave after propagating through the porous media model. The experiments used a detonation test tube with 50 mm of inner diameter and 6 m of total length. The test tube consists of two sections, 1 m long driver section and 5 m long driven section. The driver section and driven section are separated by Mylar film to prevent mixing between driver gas and driven gas, which consists of different gas mixture with different pressure. The driver section contained a stoichiometric H2-O2 mixture at constant initial pressure, which function as a direct initiator for detonation in the driven section. Besides, the driven section contained a stoichiometric mixture of LPG-oxygen and LPG-air at the initial pressure varied from 20 kPa to 100 kPa with an interval of 10 kPa. The stainless-steel porous media with masses of 15 g and 20 g were inserted in a cylindrical case which had been perforated with small holes on its cross-sectional surface to enable detonation wave to propagate through it. The observation of detonation wave propagation was conducted at upstream and downstream of the model. Two mechanisms of detonation wave propagation were observed in the downstream of the porous media model for combustion of the LPG-oxygen mixture; they are detonation re-initiation and detonation transmission. However, the LPG-air mixture could not generate a detonation wave. Additionally, the 5 g increments of the stainless-steel porous media mass only significantly increase the re-initiation distance of detonation (Dri) for mixture with low initial pressure, 20 kPa up to 50 kPa and did not significantly influence re-initiation distance of detonation for mixture with a high initial pressure of 60 kPa to 100 kPa. Link: https://www.youtube.com/watch?v=OnoKSNh5Eaw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=20&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME025
A Review on the Fused Deposition Modeling (FDM) 3D Printing: Filament Processing, Materials and Printing Parameters
Ruben Bayu Kristiawan, Fitrian Imaduddin*, Dody Ariawan, Ubaidillah, and Zainal Arifin 1 Mechanical Engineering Program, Faculty of Engineering, Universitas Sebelas Maret
Jl. Ir. Sutami no.36A, Kentingan, Surakarta, Central Java, Indonesia * Corresponding Author Email: [email protected]
Abstract. This article aims to review research progress on factors that affect the 3d printing results of the FDM process. The review is carried out by making the mapping of critical parameters and factors determining parameters for FDM, the effects of each parameter, and their interaction with other parameters. The study is started from the filament manufacturing process, filament material types, and printing parameters of FDM techniques. The difference in each section has determined different parameters, and the respective relationships between parameters and other determinants during printing have a significant effect on printing results. This paper also identifies several vital areas of previous and future research in optimizing and characterizing the critical parameters in the FDM printing process and FDM filament manufacturing. Link: https://www.youtube.com/watch?v=dd8x_V1Cf_k&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=21&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME026
A Numerical Ventilation Problem on Fridsma Hull Form Using An Overset Grid System
Samuel1*, D J Kim2, A Fathuddiin1, and A F Zakki1
1Department of Naval Architecture, Faculty of Engineering, Diponegoro University, Semarang, 50275, Indonesia
2Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan, 48513, South Korea
Abstract. Numerical ventilation problem (NPV) is a problem that often occurs during the numerical simulations process. This problem mostly occurs when the vessel has a high Froude Number, causing inaccurate ship resistance predictions. Numerical ventilation can be considered as one of the major sources of error in numerical simulations that require further analysis. The present paper aims to validate a numerical resistance prediction using Fridsma’s hull form. An overset grid system is implemented in this study to solve using the Volume of Fluid method. The method for improving the accuracy of ship resistance prediction are refinement method, visualization method, and phase replacement method. In this paper, the RANS equation is used to describe the turbulence model using k-ε. On most occasions, the Volume of Fluid model uses multiphase Euler flow, assuming air and water as a phase. This research concludes that mesh refinement method is able to solve numerical ventilation problem with such a good result. Link: https://www.youtube.com/watch?v=BXR9diVUht8&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=22&t=45s&ab_channel=ICIMECE2020
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PAPER ID: ME027
The Effect of T6 Heat Treatment on 7075 Aluminum on its Hardness and Tensile Strength
F B Darsono1, *, and S T Koin2 1 Department of Mechanical Engineering, Universitas Negeri Semarang, Kampus Sekaran, Gunung Pati,
50229 Semarang, Indonesia 2 Department of Applied Machine Tools Workshop, Politeknik ATMI Surakarta, Karangasem, Laweyan,
Surakarta, Indonesia. *E-mail: [email protected]
Abstract. This study aimed to determine the effect of T6 heat treatment on 7075 aluminum on its hardness and tensile strength. The T6 heat treatment process was heating the test specimens in an oven at various temperatures of the solution heat treatment (SHT) of 350°C, 400°C, 450°C, and 500°C for 2 hours. This process was then followed by quenching for 45 minutes and an artificial aging process at temperature of 120°C for 48 hours. The tests carried out included: Vickers hardness test, tensile test using ASTM B557-84 standard, microstructure test, and XRD test. The test results showed that the hardness and tensile strength before T6 heat treatment were 59.1 VHN and 235.7 Mpa, respectively. After the T6 heat treatment was carried out, the hardness results were 105.8, 87.3, 108.9, and 171 VHN and tensile strength of 318.3, 415, 571.7, and 618.3 MPa, respectively. These results indicated that highest hardness was found in the SHT temperature of 500°C, while the increase in tensile strength was found in the temperature of SHT 500°C. It can be obtained because the formation of precipitate after the artificial aging process was due the formation of Al2CuMg and MgZn2. Link: https://www.youtube.com/watch?v=AC4Hn9RK148&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=23&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME028
Experimental Performance of A Rotary Desiccant Wheel without Honeycomb Matrix Structure: A Preliminary Study
U Hanifah¹, M A Karim¹, A Haryanto¹, R Alfiyah², and A Taufan¹* ¹Research Center for Appropriate Technology, Indonesian Institute of Sciences, Indonesia
²Undergraduate student in Universitas Sebelas Maret, Surakarta, Indonesia *[email protected]
Abstract. Experimental investigation of a rotary desiccant wheel is presented in this study. The rotary desiccant wheel without honeycomb matrix structure is tested where silica gel is used as the desiccant material. The dehumidification experiment shows the humidity ratio decreased from 0.0205 kg/kg to 0.0182 kg/kg. Due to it has the potential to be a drying machine, an initial drying experiment was also carried out to see the performance of this machine. The drying process shows the machine can reduce the moisture content of the noodle product from 33.86% to 9.95% in 17 hours. Results show that thermal, regeneration, and dehumidification effectiveness is up to 24%, 14% and 11%, respectively. Link : https://www.youtube.com/watch?v=wTUORZmWnFw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=24&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME032
Determining Water Content of Non-surfactant Emulsion Fuel using Bomb-Calorimeter
D A Sugeng1*, M Abrori1, A Syafrinaldy1, H Abd Kadir3, F R Saputro1, B H Kusdi2, I Bahiudddin4, W J Yahya2
1 Badan Pengkajian dan Penerapan Teknologi, Jakarta, Indonesia 2 Advanced Vehicle System (AVS), Malaysia-Japan International Institute of Technology, Universiti
Teknologi Malaysia, Kuala Lumpur, Malaysia 3 Faculty of Mechanical Engineering, Universiti Teknologi MARA (UiTM) Johor, Campus Pasir Gudang,
Masai Johor, Malaysia 4 Department of Mechanical Engineering, Vocational College, Universitas Gadjah Mada,
Yogyakarta, Indonesia [email protected]
Abstract. Non-surfactant Water-in-Diesel emulsion fuel (NWD) has short stability period and tend to separate immediately into water and diesel. NWD needs to be supplied into the diesel engine or combustor as soon as it was formed. Since the combustion and emission performance are closely related to the water content of an emulsion fuel, the immediate water content of NWD needs to be more closely inspected. The ASTM D95 standard provides a method to determine the water content of an NWD, but this method takes a long time to perform (up to 2 hours) and arduous. This paper describes the estimation of water content in a non-surfactant emulsion fuel by bomb-calorimetry, which can deliver quicker results than ASTM distillation. Experiments were performed with samples of emulsion fuel using and void of surfactant. The samples were first homogenized using an ultrasonic bath before they were sent to a bomb-calorimeter. The higher heating value of the emulsion was estimated using the weighted average since the components were deemed to be non-reactive. The bomb-calorimetric results of the non-surfactant emulsion fuel showed a close proximation, while the emulsion fuel with surfactant delivered less conclusive results. It was concluded from this study that an estimation of water content in NWD could be performed using bomb-calorimetry eight times faster than using the ASTM D95 standard with a deviation of maximum 3%. Link: https://www.youtube.com/watch?v=TRlx6RWrmsE&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=25&t=6s&ab_channel=ICIMECE2020
PAPER ID: ME033
Recent Progress of Fused Deposition Modeling (FDM) 3D Printing: Constructions, Parameters and Processings
Garindo Prayitno, Fitrian Imaduddin*, Ubaidillah and Zainal Arifin 1 Mechanical Engineering Program, Faculty of Engineering, Universitas Sebelas Maret
Jl. Ir. Sutami no.36A, Kentingan, Surakarta, Central Java, Indonesia * Corresponding Author Email: [email protected]
Abstract. Fused Deposition Modeling (FDM) is the most widely used 3D printing technique. The use and development of FDM cover various fields such as automotive, airplane, to biomedical. Many studies have been conducted to study the effect of various printing parameters and post-processing treatment on the performance of printing results with FDM. This literature study aims to compile and summarize the latest studies related to the effect of FDM process parameters and post-processing treatment as well as prospects and challenges. The review found that the combination of several synchronized parameter processes can produce parts that are printed better because several parameters are interrelated and can complement to each other. In addition, the quality of FDM printing results is generally found to be better with post-processing treatment although it requires more effort that might not always be feasible for some applications.
Keywords: Fused deposition modeling (FDM), 3D printing, printing parameters, post-processing
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Link: https://www.youtube.com/watch?v=WGXFoQN_Le4&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=26&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME034
Magnetorheological Fluid Yield Stress Prediction using Particle Swarm Optimization at Low and High Shear Rate Region
I Bahiudin1*, F Imaduddin2, SA Mazlan3, MI Saphiai3, AA Ismail1 1 Department of Mechanical Engineering, Vocational College, Universitas Gadjah Mada,
Yogyakarta, Indonesia 2 Mechanical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A,
Kentingan, Surakarta 57126, Central Java, Indonesia 3 Malaysia Japan International Institute of Technology,Universiti Teknologi Malaysia, Jalan Sultan Yahya
Petra, 54100 Kuala Lumpur, Wilayah Persekutuan * [email protected]
Abstract. Yield stress is an important parameter to measure the performance of a magnetorheological (MR) fluid. The parameter can be obtained by fitting a flow curve consisting of a shear rate-shear stress dataset to a Bingham plastic equation. However, the dataset selection is usually determined by trial and error by selecting the data either at a low or high shear rate region due to there is no standardized selection method. Therefore, this paper attempts to develop a platform to predict the yield stress automatically using particle swarm optimization (PSO). The PSO objective function is inspired by the Biplastic Bingham model. The results have shown that the prediction has shown a good agreement when fitting to the experimental data. Furthermore, the obtained yield stress values at high and low shear rate regions also were discussed from the point of view of the difference and possible effect if the wrong variables are chosen. The evaluations have shown that the gap between the yield stress at low and high regions can be relatively high, which is about more than 10 kPa. The wrong selection of the yield stress at an MR device possibly bring inaccuracy performance prediction/design, especially at high magnetic field value. Link: https://www.youtube.com/watch?v=f29fZYNE3KY&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=27&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME037
Effect of Ceiba Pentandra Biodiesel/Dexlite Diesel Blends on the Four-Stroke Diesel Engine Performances
D Widjanarko1,*, R D Kusumaningtyas2, I P Jamari1 1Mechanical Engineering Department, Faculty of Engineering, Universitas Negeri Semarang. Kampus
Sekaran, Gunungpati, Semarang, Indonesia, 50229. 2Chemical Engineering Department, Faculty of Engineering, Universitas Negeri Semarang. Kampus Sekaran,
Gunungpati, Semarang, Indonesia, 50229. [email protected]
Abstract. The increasing number of motorized vehicles causes an increase in fuel consumption. Meanwhile, fuel consumption in Indonesia is inversely proportional to the amount of oil production in Indonesia. One of the solution in by using biodiesel from kapok (Ceiba pentendra) seed as a diesel fuel blends. In this research, blends of dexlite (diesel fuel)/Ceiba pentandra biodiesel was studied on the four stroke diesel engine performance. Four different fuel blends (B10, B20, B30 and B40) and B0 (pure dexlite fuel) were prepared for the engine performance test. The engine performance shows that addition of biodiesel to diesel fuel gave lower torque than the dexlite fuel. Biodiesel blends also have lower brake power compared to the dexlite fuel.
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Among different biodiesel blends, A 10% biodiesel blend shows the best engine performance in terms of engine torque and brake power. Link: https://www.youtube.com/watch?v=p13qr5Bt3qI&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=28&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME038
The Effect of Bellmouth Radius and Venturi Restrictor Length on The Power and Torque of The BM-9's Engine
Fauzun1* and C W Yogiswara1 1Mechanical and Industrial Engineering Departement, Faculty of Engineering, Universitas Gadjah Mada,
Jalan Grafika 2, Yogyakarta 55281, Indonesia [email protected]
Abstract. Student Formula SAE is an international formula car competition for bachelor student. One of the rules in this competition is at the air intake must have a restrictor located after the throttle body and has 20 mm maximum diameter. The restrictor at the air intake causes power and torque produced by engine decrease under the engine specification. To increase the engine performance, modify the bellmouth radius and modify the venturi restrictor length are some of options. The author analyzed the effect of bellmouth radius and divergent length of venturi restrictor at the air intake on power and torque produced by KTM 450 SX-F engine of Bimasakti UGM’s 9th generation car (BM-9). The author made 9 design variation of bellmouth and restrictor then simulated by Ricardo Wave 2016.1 software to calculate the value of power and torque produced by engine. Also, Ansys Fluent 18.1 software was used to analyze pressure loss in the restrictor from the 3 samples design selected. The result is, greater the bellmouth radius and longer the divergent length of venturi restrictor produced higher value of peak power and peak torque produced by engine, also has the lower value of pressure loss in the restrictor. The best design variation in this research is bellmouth design with 30 mm radius and venturi restrictor design with 95 mm divergent length that produced peak power of 37.94 hp at 9300 rpm and peak torque of 29.38 Nm at 9000 rpm, also produced pressure loss of 4713 Pa in the restrictor. Link: https://www.youtube.com/watch?v=xW6zmP2pSkc&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=29&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME039
The Effect of Copper-Aluminium Perforated Heat Sink to Improve Solar Cell Performance
A C Kusuma1, C Harsito1, R A Rachmanto1, and Z Arifin1* 1Department of Mechanical Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A,
Surakarta 57126, Indonesia *Corresponding author: [email protected]
Abstract. Fossil-based energy is diminishing due to the increasing global energy demand. The sun as a renewable energy source can be converted into electrical energy using solar cells. The performance of solar cells is influenced by the operational temperature produced. This article discusses the use of copper heat sink with aluminum fins as passive cooling to reduce operating temperatures to improve the performance of solar cells. The performance of solar cells using a heat sink with a copper base variation of 5 and 10 aluminium fins compared to solar cells without cooling. The results show that at the same intensity of 1100 W / m², the solar cell without cooling gets an operating temperature of 64.6 °C, an efficiency of 9.50% and an output power of 36.63 W. Solar cells with a 5-fin heat sink, can reduce the operating temperature is 57.7 °C, an efficiency of 11.42% and an output power of 44.02 W. Whereas the cooling panel with 10 fins obtains a
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temperature of 55.6 °C, maximum efficiency and power are 12.03% and 46.37 W respectively. The addition of 10-fin heat sinks to solar cells produces the best performance which can reduce operating temperatures by 9 °C, increasing efficiency and output power are 2.53% and 9.74 W respectively compared to solar cells without cooling.
Keywords: Solar Cells; Copper-Aluminium Heat sink; Fins Number; Link: https://www.youtube.com/watch?v=hDjYZjtHZjo&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=30&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME041
Application of Elliptical Blade Shape to Enhance Power Generation of the Savonius Water Turbine
A Sutaji1, M Yusvika1, D D D P Tjahjana1 and S Hadi1* 1 Mechanical Engineering Department, Universitas Sebelas Maret.Jl. Ir. Sutami 36 A,
Surakarta, Central Java, Indonesia. Jl. Mojo No 1 PO BOX 215 Surakarta, Central Java, Indonesia.
*Correspondense: [email protected]
Abstract. Sewerage pipelines found in the buildings can be used as a mechanical energy resource for small capacity hydropower plant. The utilization of energy sources can be generated by installing the savonius hydrokinetic turbine. Conventional turbine is designed with semi-circular blades able to generates its own performance, but is still relatively low. In this research, the savonius type elliptical blades are applied to enhance the turbine performance. This experimental observation are conducted to obtain the optimal number of blades, which is determined by the maximum power generated by the rotor. The number of blades are tested for 2, 3, and 4 blades with four differences of the water discharge. A single-stage horizontal axis savonius water turbine (HAWT) was installed in a 3 inches diameter pipelines. The results of the experiment show that at four numbers of the blade, obtained the optimal power of 4.251 Watts at a discharge of 5.826 x 10-3 m3/s with tip speed ratio ( ) 2.37 and the coefficient of power 0.025.λ C )( P Link: https://www.youtube.com/watch?v=MMZ6viT4XFc&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=31&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME042
Prediction of the Hydrodynamic Performance of an Elliptical Blade Savonius Turbine using Computational Fluid Dynamics
M Yusvika1, A Sutaji1, A R Prabowo1, F Imaduddin1, S Hadi1* 1Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
*Correspondence: [email protected]
Abstract. Electricity is a renewable energy source that can be generated from natural energy resources. savonius rotor is a type of turbine which produces small-capacity electrical energy using the kinetic energy obtained in the water flow. The main driving force in this paper is to predict the hydrodynamic performance of elliptical blade savonius hydro turbines with computational fluid dynamics (CFD). A 3D unsteady simulation will be conducted using ANSYS-CFX 19. The elliptical blade profiles with vertical axis turbines are performed at different blade numbers of 2, 3, and 4 blades. The performance analysis results show an improvement in the coefficient performance value of the elliptical blade compared to the conventional semi-circular blade. Based on the results, the more appropriate results obtained at TSR 1.069 for three elliptical blades with a power coefficient value of 0.738.
Keywords: Savonius, Simulation, Performance, Elliptical blade.
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Link: https://www.youtube.com/watch?v=NXMqszOwxIg&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=32&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME043
Photovoltaic Performance with Heat Sink from Copper and Aluminum Material
Arif Maulana1, Rendy Adhi Rachmanto 1, Syamsul Hadi1, Zainal Arifin 1* 1Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
*Corresponding author: [email protected]
Abstract. Energy becomes a basic human need, so energy reserves are needed. Solar energy is the solution to overcome this problem. Solar energy can be converted into electrical energy through PV panels. However, high temperatures can make PV panels do not work optimally. One way to reduce the temperature is to use a heat sink. The materials used are PV panels without heat sinks, PV panels with aluminum heat sinks, and PV panels with copper heat sinks. This research shows that with the same intensity of 1100 W / m2 PV panels without heat sinks, PV panels with aluminum heat sinks and PV panels with copper heat sinks have an efficiency of 8.76%, 10.27% and 11.14%. The result of temperatures 69.7 , 60.8 and 52.7 and the maximum power produced is 35.19 W, 40.17 W and 43.58 W. The results showed that the average working temperature decreased 8.9 and 17 , thereby increasing output power by 4.98 W and 8.39 W and increasing efficiency by 1.51% and 2.38% without using a heat sink.
Keyword : Photovoltaic; Heatsink; material. Link: https://www.youtube.com/watch?v=OMKK6LIkpTI&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=33&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME044
Solar Cell Cooling with Phase Change Material (PCM) for Enhanced Efficiency: A Review
D B Seto 1, B Kristiawan 1, Ubaidillah1 and Z Arifin1* 1Mechanical Engineering Department, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A,
Surakarta, Indonesia, 57126 * Corresponding author: [email protected]
Abstract. This literature aimed to explain recent studies related to the passive cooling of solar cells using Phase Change Material (PCM). Cooling is done to reduce operating temperature and to prevent a decrease in efficiency in an unfavorable environment because the efficiency of the solar cell system decreases when the operating temperature rises and can damage the PV module. The successful use of phase change materials (PCM) from latent heat storage systems is highly dependent on the thermal reliability and stability of the phase change materials used. In conclusion, the overall energy utilization ratio of cooled PV using a PCM system can be increased through a thermal regulation strategy, further research of this system is still needed to achieve maximum results in PV efficiency.
Keywords: Solar cell, PCM, Efficiency, Passive Cooling. Link: https://www.youtube.com/watch?v=vIks0dW5z1I&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=34&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME045
Analysis of TiO2/Water-based Photovoltaic Thermal (PV/T) Collector to Improve Solar Cell Performance
A F Fadli1, B Kristiawan1, Suyitno1, Z Arifin1* 1Mechanical Engineering Department, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A,
Surakarta, Indonesia, 57126 *Correspondence: [email protected]
Abstract. Indonesia is a country with a tropical climate, so it gets a large amount of solar energy. Along with technological developments, solar energy can be converted into electrical energy by using a device called a PV panel. From several research that have been carried out, it was concluded that with an increase in every 1 oC the working temperature of the PV panels will reduce efficiency by 0.5%. This article will discuss the effect of using TiO2/water nanofluid with a concentration of 0.5 vol.% on a collector photovoltaic thermal (PV/T) system for PV panel cooling. The results obtained at the radiation intensity of 1100 W/m2, the use of a TiO2/water-based PV/T collector system can reduce the working temperature of solar panels by 11.4 oC. It also increased output power by 10.38 W and efficiency by 2.69% compared to PV panels without cooling.
Keywords : Solar cell, PV/T system, TiO2/water nanofluid Link: https://www.youtube.com/watch?v=292di6VgDUM&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=35&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME046
Characteristic of Unhulled Rice Drying on Swirling Fluidized Bed Dryer
Novrinaldi1*, S A Putra1, A Sitorus1
¹Research Center for Appropriate Technology, Indonesian Institute of Sciences, Indonesia *[email protected]
Abstract. The most important thing of drying is removing moisture from materials towards the equilibrium moisture with normal ambient air. One of the drying ways is to use Swirling Fluidized Bed Dryer (SFBD) for drying materials in the form of granules or seeds. The experiment of Swirling Fluidized Bed to dry out unhulled rice was carried out. This research aims to find the characteristics of unhulled rice after the drying process and performance of SFBD. Swirling fluidized bed dryer with 15o angles of blade inclination, 650 mm of plenum chamber depths, and 30 blades were used to dry out unhulled rice 1 kg, 2 kg and 3 kg. In this study, 16.2 m/s hot air velocity and 55 °C were used to dryer out unhulled rice as long as 45 minutes. Initial moisture content of unhulled rice are 24.1% for 1 kg, 23.6% for 2 kg and 23.7% for 3 kg and final moisture content were 11.68%, 13.13% and 12.13% respectively. The evaporated mass of water was 123.2 gr, 217.5 gr, and 356.1 gr. The plenum pressure on the capacity unhulled rice of 1, 2, and 3 kg are 59.6 mmH2O and 16.7 mmH2O, 78.5 mmH2O, respectively. The drying chamber pressure on the capacity unhulled rice of 1, 2, and 3 kg are 35.1 mmH2O, 79.9 mmH2O, and 37.5 mmH2O, respectively. Link: https://www.youtube.com/watch?v=nHeBIrgwnW8&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=36&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME047
Fabrication and Characterization of PLA/Nanocrystalline Cellulose Nanocomposite Filaments for 3D Printing Application
Kusmono, O. E. R. Wiratma Department of Mechanical and Industrial Engineering, Faculty of Engineering, UGM, Jln. Grafika No. 2
Yogyakarta 55281 Corresponding author: [email protected]
Abstract. 3D process is an additive manufacturing process widely used due to its low cost, high production rates, and ease process. One of the thermoplastic materials commonly used is polylactic acid (PLA). However, PLA has some weakness including low strength and thermal stability. To improve these properties, the addition of the reinforcement materials into the pure PLA must be done and nanocrystalline cellulose (NCC) is one of the potential reinforcement materials. The influence of NCC addition on the tensile and thermal properties of PLA/NCC nanocomposite filament was investigated. NCC was isolated from the ramie fibers using sulphuric acid hydrolysis. Dried NCC powder and PLA pellets were hand-mixed with different NCC concentrations of 0, 1, 3, and 5 wt%. The filament was prepared using a single-screw extruder machine at 185°C under the constant speed. It was found that the diameter of the filament was lower than that of the nozzle of the extrusion machine. The addition of 1 wt% of NCC into the pure PLA increased the tensile strength by 19.04% (from 48.41 to 57.63 MPa) and elastic modulus by 13.47% (from 1791.62 to 2033.07 MPa). The addition of NCC more than 1 wt% decreased the tensile strength and elastic modulus. The optimum NCC loading was achieved at 1 wt%. The presence of NCC had no a significant effect on the thermal stability of the pure PLA. Link: https://www.youtube.com/watch?v=YZM4MTxhfG8&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=37&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME048
Numerical Analysis of Heat Transfer Improvement in Flat Tube Car Radiator by using TiO2/Water Nanofluids
B Kristiawan1*, A T Wijayanta1, I Yaningsih1, E P Budiana1, S Hadi1, D A Himawanto1
1 Mechanical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36A, Kentingan, Surakarta, Jawa Tengah, Indonesia 57126
Abstract. This research investigated two-phase heat transfer numerically using TiO2/water nanofluids to enhance the thermal performance in a flat tube car radiator. Nanofluid is a colloid dispersion in a nano-sized which is a breakthrough in terms of the thermal devices. The radiator is widely used in the automotive industry as a heat exchanger. The enhancement of thermal accomplishment was studied numerically by analyzing in thermohydraulic characterizations. A numerical study was conducted by TiO2/Water nanofluids using five concentrations consisting, that is, 0.05%, 0.5%, 1.0%, 3.0% and 5.0% and six Reynolds number variations. Nanofluids with volume concentrations of 0.05%, 0.5%, and 1.0% volume concentration indicated that the values of Nusselt number were lower compared to water. Meanwhile, the values of Nusselt number for nanofluids with volume concentration of 3.0% and 5.0% were higher than water. This occurs because the transfer coefficient enhancement was higher when compared to the increase of thermal conductivity. Link: https://www.youtube.com/watch?v=86pTxivEsGo&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=38&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME049
Noise Quality and Muffler Design of A Formula SAE Racecar
A Masa’id, Ubaidillah, B W Lenggana, D R Pratama, E T Maharani and F R Sinaga Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, Indonesia [email protected]
Abstract. Mufflers are an essential part of the engine system and commonly used in the exhaust system to minimize sound transmissions caused by exhaust flow. The primary objective of a muffler is to reduce engine noise emission. Mufflers have a sophisticated design that affects fuel efficiency, noise characteristics and emission of engine. In the selection of a muffler for an internal combustion engine of a Formula SAE, several functional requirements should be considered, which include both acoustic and non-acoustical design issues. Attention must also be given to problems of space availability and configuration. The best material for the purpose must be chosen. Equally important is the most economical utilization of this material, both from the standpoint of original availability and cost, as well as the practical aspect of ease of production. Not only the basic acoustical design but also some of the problems of fabrication and attachment will be discussed. Link: https://www.youtube.com/watch?v=MW1WaYo2dRw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=39&t=0s&ab_channel=ICIMECE2020
PAPER ID: ME050
Epoxy Resins Thermoset for Mechanical Engineer
H Sukanto1,3, W W Raharjo1, D Ariawan1, J Triyono1, M Kaavessina2 1 Mechanical Engineering Department Universitas Sebelas Maret
2 Chemical Engineering Department Universitas Sebelas Maret 3 [email protected]
Abstract. Mechanical engineers need to know the ins and outs of thermoset epoxy resin because most of the construction material comes from fiber-reinforced composite materials that use epoxy as the matrice. Knowing in detail the properties of the epoxy resins with respect to their mixing with the curing agents in various ratios, the shear strength of their interface with the fiber reinforcement, their behavior in environmental exposure and the strategies to decompose or recycle them are the core that must be known by mechanical engineers. Regarding the preparation of epoxy resin raw material, the detailed mechanism of the stoichiometric reaction that occurs along with the accompanying energy are parts of the object of discussion which are the responsibility of the chemical engineer. Generally, both engineers will work together when trying to find a solution of the impact of the use epoxy resins on humans and the environments. This review presents various types of epoxy resins and curing agent commonly used as composite matrices, a brief review of cross-linking formation and the process of degradation or decomposition of epoxy resins by pyrolysis and solvolysis. Currently, mechanical engineering researchers have contributed a lot of methods and technologies to recycle fiber-reinforced epoxy resin composites with a focus on recovering and reusing reinforcing fibers to make a new composite. Link: https://www.youtube.com/watch?v=GjwtdMM1LSY&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=40&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME051
Strategy and Master Plan for Water Supply and Domestic Wastewater in Klungkung Regency, Bali
I Y Septiariva1, I W K Suryawan2,*, S Suhardono3, E S Sofiyah2, N L Zahra2 1 Faculty of Engineering, Department of Civil Engineering, Universitas Sebelas Maret,
Surakarta 57126, Indonesia 2 Faculty of Infrastructure Planning, Department of Environmental Engineering, Universitas Pertamina,
Jakarta 12220, Indonesia 3 Faculty of Mathematics and Science, Department of Environmental Science, Universitas Sebelas Maret,
Surakarta 57126, Indonesia *corresponding author: [email protected]
Abstract. Klungkung Regency is the second smallest regency/city area after Denpasar City. The declaration of the Indonesian government in meeting the MDG's target for zero slums has been followed by the district government of Klungkung with a focused policy and strategic direction. The identification of slum issues is carried out on several indicators for the conditions of water supply and wastewater services. The purpose of this paper is to make long-term planning to realize integrated domestic wastewater treatment until 2033. This research uses a qualitative approach with descriptive methods and data analysis was performed by data display, verification, and conclusion drawing. To overcome the problem of fulfilling raw water, efforts are made to handle it through plans for phases I, II, III, and IV. In the period from 2019-2023, a drinking water supply system will be developed by utilizing raw water from the Muara Unda Reservoir, which is 300 L/sec. In phase III, a transmission unit will be built in the raw water delivery system from the Penida Spring with an additional capacity of 20 L/sec. In Klungkung Regency, there is no centralized wastewater treatment plant to treat wastewater from this domestic activity. Most residents in Klungkung Regency dispose of their domestic waste/water through septic tanks (for black water), while gray water is directly channeled into drainage channels or directly discharged into rivers. Link: https://www.youtube.com/watch?v=oMXrYUty_80&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=41&t=4s&ab_channel=ICIMECE2020
PAPER ID: ME055
Investigation of Ecohouse through CFD Simulation
D P Sari1,2, I Gunawan2 and Y S Chiou2 1Research Center for Biomaterials, Indonesian Insitute of Sciences, Cibinong 16911, Indonesia
2Architecture Department, National Taiwan University of Science and Technology, Taipei 106, Taiwan (ROC)
Abstract. Natural ventilation and raised floor can be found in many traditional houses throughout Indonesia. Moreover, this concept currently applied for modern Javanese house called Ecohouse. The Ecohouse is a prototype single-family house with a raised floor, open plan, located in Cibinong, Indonesia. The investigations were made with the CFD DesignBuilder software package. CFD simulation is conducted to simulate wind behavior and the temperature of the buildings. Ventilation in the house is studied during the summer months. This research has found that the natural ventilation and raised floor of Ecohouse is the potential to provide thermal comfort inside the house. Flow patterns show raised floor and horizontal fin on the roof can reduce the heat store in the room. The result of the study will become a reference to optimize the performance of Ecohouse before applied it as a government recommendation for a residential house in Indonesia. Link: https://www.youtube.com/watch?v=i6I-ggpvC2E&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=42&t=0s&ab_channel=ICIMECE2020
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PAPER ID: ME057
Prediction Model of Magnetorheological (MR) Fluid Damper Hysteresis Loop using Extreme Learning Machine Algorithm
K.D. Saharuddin1, M.H.M. Ariff 1*, K. Mohmad1, I. Bahiuddin2, Ubaidillah3, S.A. Mazlan1, N. Nazmi1 and A.Y.A. Fatah4
1Malaysia Japan International Institute of Technology, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur, Malaysia
2Mechanical Engineering Department, Vocational College, Universiti Gadjah Mada, Yogyakarta, Indonesia 3Mechanical Engineering Department, Universitas Sebelas Maret, Surakarta, Jawa Tengah, Indonesia
4Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia Kuala Lumpur, Kuala Lumpur, Malaysia
*Email: [email protected]
Abstract. The magnetorheological (MR) fluid is one of the smart materials that that can change its default properties with the influence of magnetic field. Typical application of MR fluid based device is adjustable damper which the commercial known as MR fluid damper. It is used in vibration control as isolator in vehicles and also civil engineering applications. As part of device development process, proper understanding on the device characteristics properties is essential for device performance analysis. Here, an accurate and fast prediction model is introduced to analyse the dynamic characteristic of the MR fluid damper. Therefore, this paper proposed a new modelling technique which called Extreme Learning Machine (ELM) to predict the dynamic behaviour of MR fluid damper hysteresis loop. This technique is adopted to overcome the limitation of the existing models using Artificial Neural Network (ANN) methods where the ELM is extremely faster than ANN with the capability to produce high accuracy prediction performance. Here, the hysteresis loop which represent the relationship of force-displacement for MR fluid damper have been modelled and compared using three different activation functions that are sine, sigmoid and hard limit function. Based on the results, it was found that the prediction performance of ELM model using Sigmoid activation functions has produced highest accuracy where lowest Root Mean Square Error (RMSE) was obtained. Link: https://www.youtube.com/watch?v=3bPAH9VCcRw&list=PLxk03d9FJa_boqcBp8entsUBSFGL3VVyJ&index=43&t=0s&ab_channel=ICIMECE2020
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INDUSTRIAL ENGINEERING
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PAPER ID: IE01
Implementation of Lean Manufacturing Process to Reduce Waste: A Case Study
D Rahmanasari1*, W Sutopo2, and J M Rohani3 1Undergradute Program of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, 57126, Indonesia 2Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, 57126, Indonesia 3Universiti Teknologi Malaysia, Faculty of Engineering, School of Mechanical Engineering, Department of
Materials, Manufacturing and Industrial Engineering, Johor Bahru, Malaysia. E-mail: [email protected], [email protected], [email protected]
Abstract. Excessive waste production is often happening in the inefficient use of resources in manufacturing. There is still some excessive waste found in the electronic components company as a case study. It resulted from the careless use of resources and indirectly weakness their market positioning. The purpose of this paper is to present an implementation of a lean manufacturing process to reduce waste. This study aims to analyze and reduce the waste that occurs using lean manufacturing approaches. The value stream mapping (VSM) and waste relationship matrix (WRM) were applied to describe and to analyze the production flow of waste. Then, a waste assessment questionnaire (WAQ) is used to determine the percentage of waste that occurs. Value Stream Analysis Tools (VALSAT) is used for complete mapping tools. Three methods are considered for determining the feasibility, namely, net present value, internal rate of return, and profitability index. Base on analysis, we choose on the 3rd largest waste to be improved. According to the data analysis, it is found that increasing the number of production machines, carrying out appropriate maintenance activities, increasing training and supervision, and adding work facilities are recommendations for the improved production process. The proposed guidance seems to help the company reduce the seven waste and increase unit production. It is expected that the production process will be more effective and efficient. Link : https://www.youtube.com/watch?v=0yaPgUtfCY8&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=2&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE02
Energy Efficiency Analysis in A Textile Company using DMAIC Approach
Sekar Sakti, Bertha Maya Sopha*, Eris Sofyan Tri Saputra Industrial Engineering Program, Department of Mechanical and Industrial Engineering, Universitas Gadjah
Mada (UGM), Yogyakarta, INDONESIA [email protected]
Abstract. Textile industries generally consume a significant amount of electricity in their business operations, hence, efforts to reduce their consumption is necessary. This study assesses the energy consumption and energy saving opportunities in a textile company in Indonesia. A structured energy audit using Define-Measure-Analyze-Improve-Control (DMAIC) was implemented in the Spinning department. The evaluation indicates that 80% of the Specific Energy Consumption (SEC) are dominated by the factory air conditioner and chiller which is corresponding to 515 kWh / kg and 219 kWh / kg respectively. The Coefficient of Performance (COP) of the plant cooling system is 7.41 which conforms to the COP national standard. Further energy-saving opportunities include closing the door and other gateways of the air, replacing the refrigerant material from Freon R-134 to Musicool Mc-134, and installing inverter on mist nozzle motor, evaporator pump, condenser pump, and cooling tower Link : https://www.youtube.com/watch?v=bNV03jgkWyg&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=3&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE03
Modelling Photovoltaic Adoption and Diffusion : A Literature Review
N Nurwidiana1* , BM Sopha1, A Widyaparaga1 1Industrial Engineering Program, Department of Mechanical and Industrial Engineering, Universitas Gadjah
Mada (UGM), Indonesia [email protected]
Abstract. The transition to renewable energy sources through the use of Solar PV faces various challenges, one of which is a low adoption rate. However, the right policies are needed to encourage the adoption. Household decision making is a complex problem, a model that represents the behavior of the PV system decision making is needed so that it can analyze and predict the effects of various policies. This paper explores the development of research on modelling the adoption of a PV system. The equation-based diffusion modelling has several benefits in describing the diffusion of a PV system, but is unable to describe the aspect of household heterogeneity. Furthermore, ABM supported by a theoretical framework has the ability to overcome some of these limitations and provide insight into the dynamics of behavior related to household adoption of PV system. Therefore, ABM can help policymakers to target programs using PV systems , although ABM has limitations in understanding the dynamics of technological diffusion, under the circumstances of insufficient empirical data. Link : https://www.youtube.com/watch?v=KhmJdMJi6m0&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=4&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE04
Feasibility Study of Web-based POS System Implementation for SMEs in Bangladesh
A I Sourav*, A W R Emanuel Magister Informatika, Universitas Atma Jaya Yogyakarta,
Yogyakarta, Indonesia, 55281. [email protected]
Abstract. As a developing country, Bangladesh is still less advanced in using the latest technologies such as websites, e-commerce, high-speed internet, point of sales (POS), etc. which is a great barrier in SME development. Proper implementation of technologies can achieve the full potential of this valuable sector. This paper aims to find out the feasibility factors of the implementation of a web-based point of sales system for SMEs in Bangladesh. The implementation of such kinds of systems will help SME entrepreneurs to achieve more potential from their businesses. A comparison of ICT developments, technologies, and POS system adaptation scenarios between Indonesia and Bangladesh is presented based on secondary data sources. The study indicates the current challenges to implement new technologies in SME sectors. The research found out the recent technological development conditions in Bangladesh. The results indicated that the implementation of a web-based POS system is feasible for SMEs in Bangladesh if the challenges can be successfully overcome. The authors suggest priority steps be taken by the government and private agencies for POS system adaptation by the SMEs in Bangladesh. Link : https://www.youtube.com/watch?v=DAW-r7iC9fs&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=5&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE05
Performance of EWMA and ANN-based Schemes in Detection of Denial of Service Attack
Ye Minn1 and Adnan Hassan1,2* 1Industrial Engineering Program, School of Mechanical Engineering, Faculty of Engineering
Universiti Teknologi Malaysia, 81310, Johor Bahru Malaysia 2Correspondence author: [email protected]
Abstract. To ensure successful implementation of cyber-physical systems, industries require computer networks to be protected from malicious attacks. Despite various intrusion detection techniques being proposed by researchers, computer networks are still vulnerable to attacks. As new attacks becoming more complicated, more research is needed to develop more effective and reliable intrusion detection schemes. This study investigated the exponentially weighted moving average control charting technique for detection of malicious denial of service (DoS) trafic and compared it with artificial neural network (ANN) based scheme. Eight features from the Benchmark KDD Cup99 computer network datasets were extracted and their respective ARL1 and false alarm rate were evaluated. The results suggest that EWMA technique is effective only for selective features and the ANN-based scheme is relatively consistent in handling variability in traffic data. This study opens new opportunities for further investigation to enhance performance of the proposed schemes. Link : https://www.youtube.com/watch?v=iR2_lTKfcgo&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=6&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE07
Lean Implementation Barriers and Their Contextual Relationship in Contract Manufacturing Precision Machining Company
Raja Surian Sakataven1, Syed Ahmad Helmi1,2* and Muhammad Hisjam3 1 School of Mechanical Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310, Johor
Bahru, Malaysia 2 Center for Engineering Education, Universiti Teknologi Malaysia, 81310 Johor Bahru, Malaysia
3 Department of Industrial Engineering, Faculty of Engineering, Sebelas Maret University, Surakarta, Indonesia
Abstract. This paper targets to identify critical lean implementation barriers within an organization and their contextual relationship within an SME Contract Manufacturing Precision Machining Company. Through extensive literature review, 15 barriers identified are discussed and shortlisted. Using Interpretive Structural Modelling (ISM) methodology, the underlying subtle between the barriers are analysed and a model is generated for the management to consider as a guideline to tackle lean implementation barriers as part of the overall lean implementation strategy. Impact Matrix Cross-Reference Multiplication Applied to a Classification (MICMAC) analysis is used to determine the barriers driving and dependence power which influence the implementation. Using the output of ISM and MICMAC analyses, a firm understanding of the barriers that effect lean implementation and their interrelationship within a SME Contract Manufacturing Precision Machining Company is gained. 15 barriers are classified into 10 levels to be tackled. Their driving and dependence power are analysed and classified. Barrier 15 which is “Roles and Responsibility is not defined in Lean Implementation” at level 1 has the highest dependence power. Most significant barriers are barrier 4 which is “Lack of Long-Term Commitment to Change and Innovation” and barrier 5 which is “Individual Attitude” at level 10. Typically, they will display weak dependence power and strong driving power. Thus, these 2 barriers are identified as “Independent Factors” of lean implementation barriers within the organisation.
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Link : https://www.youtube.com/watch?v=j4ot5ETSkSg&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=7&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE08
Sustainable Energy Storage Management for A Power Plant-Transmission Station System with Hybrid Power Generation and
Stochastic Electricity Demand
W A Jauhari1,2*, I N Pujawan1 and M Suef1 1Department of Industrial Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia
2Department of Industrial Engineering, Universitas Sebelas Maret, Surakarta, Indonesia. [email protected], [email protected], [email protected]
Abstract. This paper proposes an energy storage management for electrical energy supply chain system (EESCS) involving a power plant and a transmission station under carbon emission investigation. The transmission station faces stochastic electricity demand from household and uses a continuous review policy to control electrical energy storage. The power plant has two power generations, namely green power generation and regular power generation. The green power generation is cleaner than the regular one, thus it generates less emissions. Although the green power generation is more environmentally, however, its electricity production cost is more expensive than the regular one. A carbon tax is implemented in the investigated system to lessen the amount of emissions coming from electricity production. An efficient algorithm is developed to solve the problem and a numerical example is presented to show the applicability of the model and to explore the behaviour of the model. Link : https://www.youtube.com/watch?v=CdqskbcAXOo&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=8&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE09
A Preliminary Review of Multiscale Fret as Innovation of Ergonomic Guitar
Sulistiono1*, B Suhardi1, F Ishartomo1 and I Nugraha1 1 Master Program, Department of Industrial Engineering, Universitas Sebelas Maret,
Surakarta 57126 Indonesia [email protected]
Abstract. The development of multiscale fret as innovation of ergonomic guitar concept aims to make this innovation applied more by guitar luthiers in designing a guitar signature that is modern and ergonomic. This concept has its own advantages, not only producing specific and organic tones, but also has benefits that can minimize the risk of repetitive strain injuries that are often experienced by guitar players. Therefore, multiscale fret has begun to be widely developed and has become one of the alternative innovations that can be applied by guitar luthiers that still adopt conventional fret concept. This paper conducts an preliminary information of the innovation of multiscale fret in a guitar that is associated with aspects of ergonomic comfort. In further research, this is expected to be a reference to understand the basic of multiscale fret and a stepping stone in conducting more systematic review regarding the effectiveness of the performance of human-centered musical instruments. Link : https://www.youtube.com/watch?v=MCPyIl9EsAQ&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=9&t=47s&ab_channel=ICIMECE2020
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PAPER ID: IE10
Equipment Replacement Analysis from Manual Line to Automatic Line in Palletizing Activities: A Case Study
S D Susanti1,a*, W Sutopo2,b, and N H A Ngadiman3,c
1Undergradute Program of Industrial Engineering, Faculty of Engineering, Sebelas Maret University, Surakarta, Indonesia
2Department of Industrial Engineering, Faculty of Engineering, Sebelas Maret University, Surakarta, Indonesia
3Universiti Teknologi Malaysia, Faculty of Engineering, School of Mechanical Engineering, Department of Materials, Manufacturing and Industrial Engineering, Johor Bahru, Malaysia.
E-mail: [email protected], [email protected], [email protected]
Abstract. A decision situation often encountered by a company is whether an existing asset should be retired from use, continued in service, or replaced with new technology to improve productivity and competitiveness. The purpose of this paper is to present an equipment replacement analysis, an electronic components company. This study aims to analyze three proposed robots to automate the production line as a challenger versus an old manual production line as a defender in palletizing activities. We offered both Market and Technical analysis as well as investment analysis for evaluating an automatic line. Data are analyzed, and four methods are considered for determining project feasibility, namely NPV, IRR, Payback Period, and CBA. According to the data analysis, it is found that Borunte's robot is the best alternative compare with the others. The proposed framework of equipment analysis seems to be helpful to the company to solve equipment replacement studies. Link : https://www.youtube.com/watch?v=nTELs7mF93A&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=10&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE11
Six Sigma Implementation in Production Process in Electronic Company Malaysia
M W D Utami1*, A Ma’aram2 and M Hisjam4 1 Undergraduate Program of Industrial Engineering Department, Faculty of Engineering, Universitas Sebelas
Maret, Surakarta 57126, Indonesia 2 Department of Material, Manufacturing and Industrial Engineering, Faculty of Mechanical Engineering,
Universiti Teknologi Malaysia, Skudai, Malaysia 3 Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta 57126, Indonesia [email protected]
Abstract. The electronics industry is one of the growing industrial sectors because of the need for electronics industry products continuously increases. This situation of development is driving the fast pace of electronics industry companies in Malaysia to be better prepared to face competition in the era of free trade. The study was carried in an electronic company in Malaysia that produce hard disk components. In this company, the number of defective products is very high which is the average defect (they call it u-loss) in the brushing room for arm body actuator products reaches 0.454% and one type of actuator arm body has reached 0.982% of defect units which means the company loses 65,000.88 RM per year. This study only focused on actuator arm body production in brushing room and aim to determine the dominant product which have the biggest percentage of defect, determine types of defects in the production of selected product, determine the root cause of the biggest defects in the production of selected product in brushing area, and recommend improvements in order to minimize the occurrence of defects in the production of selected product. This research uses Six Sigma in solving problems in the company. This study did not evaluate the results of the Six Sigma implementation directly. Therefore, as an alternative, quality improvement is done through Monte
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Carlo simulation with several scenarios. If zero defect in actuator arm body production is reached, company can save 65,000.88 RM per year. Link : https://www.youtube.com/watch?v=axURv5RQlnE&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=11&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE12
Economic Benefits of Standard in PT. XXX Using ISO Methodology
Setyoko A T1*, Kristiningrum E1, Susanto D A1, Achmadi A1 and Ayundyahrini M1 1Center for research and Human Resources Development, National Standardization Agency of Indonesia,
Jakarta, Indonesia [email protected]
Abstract. The application of standards has been widely applied by companies or organizations including SMEs (Small and Medium Enterprises). Most of them are aware of the standard benefits for organizations, even though their perception of benefits and level of awareness vary greatly. The purpose of this study was to asses the economic benefits of implementing standards in SMEs using ISO Methodology. This research conducted in Yogyakarta, Indonesia. Data on the economic benefits of applying standards are obtained from the interview process with experts (supervisors) in each business function and the owner of PT. XXX. Application of standards at PT. XXX provides an economic benefit of IDR 262,012,040. PT. XXX also receives other benefits from the application of intangible (non-quantifiable) standards in aspects of 1) Inbound Logistics, 2) HRD, 3) Marketing and Sales and 4) Management and administration. Benefits in the inbound logistics aspects is the logistics flow is more neatly arranged. Benefits in the HRD aspect include training costs being 80% UMR (Minimum Wage). Benefits in the marketing and sales aspects is that process becomes 2 to 3 times easier when explaining to prospective customers. Benefits are also obtained in management and administration aspect where customer complaints are reduced drastically. Link : https://www.youtube.com/watch?v=DSo3fxtCYJI&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=12&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE13
Profile of Certification System and Product as Quality Infrastructure in Indonesia
F Isharyadi1* and E Kristiningrum1
1Center of Research and Human Resource Development, National Standardization Agency of Indonesia [email protected]
Abstract. Quality is a universal standard that expected by consumers of a product or service used. Consumers in general cannot individually assess this quality, with the help of an independent third party it can be done. The certification body is one element in the quality infrastructure that plays a role in providing quality assurance of products and services according to applicable standards. There are several certification bodies in Indonesia both for system and product certification, the types also vary according to the scope of certification. However, it is not yet known generally the conditions of the certification system and product in Indonesia. The aim of this study is profiling the condition of system and product certification was carried out in Indonesia and evaluated the ideals of system and product certification conditions using a comprehensive tool for assessing a country’s quality infrastructure. The results showed that there were several elements that were fulfilled and perfect, especially in terms of legality and national recognition. However, some elements still need improvement so that certification bodies in Indonesia can guarantee a good and comprehensive quality of products and services traded in Indonesia so as to provide an added value that will increase competitiveness.
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Link : https://www.youtube.com/watch?v=wsHT7kBpMis&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=13&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE14
Indicators of Smart City using SNI ISO 37122:2019
E Kristiningrum1* and H Kusumo2
1Center for research and Human Resources Development, National Standardization Agency of Indonesia, Jakarta, Indonesia
2Directorate of Standard Development for Infrastructure, Conformity Assessment, Personal, and Creative Economy, National Standardization Agency of Indonesia, Jakarta, Indonesia
Abstract. In this digital age, many cities compete to invest significantly in designing and developing smart cities projects. In line with this, the development of various indicators that can later be used to measure and evaluate the performance of smart cities is also being developed. Standards are interpreted as a single language that must contribute to supporting the development and assessment of this smart city. The purpose of this paper is to inform the indicators for developing smart cities in supporting sustainable development programs. The method used is a descriptive analysis from secondary data by identifying indicators determined in international and national standards. Found 4028 ISO standards that can be implemented directly to achieve the goal of sustainable development. In terms of support for smart city development, ISO and SNI have issued standards that set 20 sectors and 81 indicators that can be used as guidelines in developing and assessing the maturity of smart cities. There are 7 clauses have been identified in SNI ISO 37122 which are basic mandatory services, and other clauses are additional services Smart city development programs are also supported by various types of regulations from the government, so an assessment scheme approach is needed to see the maturity of smart cities that are evaluated. Further research also needs to be planned and conducted to find out how to implement the identified indicators. With these many indicators, it is also important to determine which steps are the priorities for realizing smart city development. Link : https://www.youtube.com/watch?v=KIPBQisqkyo&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=14&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE15
Support of Standards and Conformity Assessments Facing Indonesian Industrial Revolution 4.0
D A Susanto*
Center for Research and Human Resources Development, National Standardization Agency of Indonesia PUSPIPTEK, Muncul, Kec. Setu, Kota Tangerang Selatan, Banten 15314
Corresponding author: [email protected]
Abstract. The global economy is currently at the peak of major changes in the form of digitalization in various sectors of life, which is called the Industrial Revolution 4.0 (IR 4.0). In the facing IR 4.0, it needs support from various aspects, one of which is standardization and conformity assessment. Standardization and conformity assessment are important aspects in technology development, product internationalization and trade relations. The purpose of this study is to review the support of standardization and conformity assessment in facing IR 4.0. The research method used is descriptive analytic by describing and displaying the facts of how the existence and availability of metrology, standards and conformity assessment in supporting IR 4.0 in Indonesia. Indonesia has a National Metrology Institute (NMI) that manages scientific metrology activities with 223 calibration laboratories accredited by the National Accreditation Committee (KAN), 4,271 Indonesian National Standards (SNI) and 1,940 Conformity Assessment Bodies (CABs) accredited by KAN. Metrology supports in the form of guaranteed measurement results that are correct,
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trusted and traceable and internationally recognized. Standards will make a product have a higher competitiveness to compete in national and international trade. While the conformity assessment infrastructure as an institution will assess and ensure that goods, services, systems, processes, or personal meet the reference requirements. There are several certification bodies in Indonesia both for system and product certification, the types also vary according to the scope of certification. However, it is not yet known generally the conditions of the certification system and product in Indonesia. The aim of this study is profiling the condition of system and product certification was carried out in Indonesia and evaluated the ideals of system and product certification conditions using a comprehensive tool for assessing a country’s quality infrastructure. The results showed that there were several elements that were fulfilled and perfect, especially in terms of legality and national recognition. However, some elements still need improvement so that certification bodies in Indonesia can guarantee a good and comprehensive quality of products and services traded in Indonesia so as to provide an added value that will increase competitiveness. Link : https://www.youtube.com/watch?v=XJikbpzGKlo&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=15&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE16
Network Characterization of Goods Movement in Indonesia
Bertha Maya Sopha* and Aries Setiawan Industrial Engineering Program, Department of Mechanical and Industrial Engineering
Universitas Gadjah Mada (UGM), Yogyakarta, INDONESIA [email protected]
Abstract. Network characterization of goods movement is particularly important to estimate needs and accurate management for freight transportation. The present study aims at characterizing the network of goods movement in Indonesia and examining the effectiveness of network characterization for prediction purpose. A network approach using RStudio was applied. It was found that the network of goods movement in Indonesia is characterized by weak inter-provincial goods movement, scale-free network, disassortative, having rich-club phenomenon, and having a core-periphery structure in which Sumatera Barat (West Sumatera) and Jawa Barat (West Java) appears to be the cores of the network. The findings also demonstrate that the prediction model developed by characterization performs better and can explain, on average, 39% of the variances. The prediction models for chemicals, fuel, meat and livestock, fish, crude oil, and fertilizer, have even better capability to explain variances in the volumes of goods movement by more than 60%. Potential avenues for future research are also discussed. Link : https://www.youtube.com/watch?v=czRAa7H-XSI&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=16&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE19
Techno Economy of Internal Combustion Engine (ICE) Motorcycle Replacement to Electric Motorcycle Conversion with Sustainability
Consideration
Achmad Habibie1,*) Muhammad Hisjam1, Wahyudi Sutopo1,3, and Muhammad Nizam 2,3
1 Master Program of Industrial Engineering Department, Universitas Sebelas Maret, Surakarta 57126, Indonesia.
2 Department of Electrical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia. 3 National Center for Sustainable Transportation Technology (NC STT), Bandung, Indonesia.
*)Corresponding author: [email protected]
Abstract. The number of internal combustion engine (ICE) motorcycles in Indonesia increased very significantly in Indonesia during the last ten years. Automatically, it will make carbon pollution in Indonesia increasing. The electric motorcycle is one of solution that can be used to reduce carbon pollution. Indonesian government very concern about this by issuing Presidential Regulation to push and accelerate the electrification of all vehicles in Indonesia, including a motorcycle. The goal of this study is to see the techno economy of replacement of ICE motorcycle to electric motorcycle from the customer side with sustainability considerations. NPV (Net Present Value), IRR (Internal Rate of Return), and Payback Period (PP) are used as methods for measuring the economical aspect, the environmental aspect is measured by carbon emissions simulation using a dynamic system model, and the social aspect is measured by comparing the noise level, the social welfare, and the lenient time. The results show that electric motorcycle conversion is the best alternative to replace ICE motorcycle based on sustainability considerations. Link : https://www.youtube.com/watch?v=EeCF8x3GYr0&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=17&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE21
Strategic Information Systems Planning for Higher Education in Uganda
N D Lynn and A W R Emanuel* Magister Informatika, Universitas Atma Jaya Yogyakarta, Indonesia
Abstract. Strategic Information Systems Planning (SISP) system is very crucial for service operations and competencies in Higher Education Institutions. Some studies show that SISP enhances competitiveness and improves operational efficiency. Currently, many Institutions of Higher Education all over the world are faced with a lot of significant problems that have hindered their implementation of useful programs such as strategic information systems that would promote quality teaching and learning. Strategic information systems planning is a very important part of the education sector since it aligns Information Technology with business structure, and this helps organizations to quickly reach their desired goals in the shortest time possible. This research aims at introducing the ASWOT analysis method to implement strategic information systems planning in Ugandan Higher Education. This paper benefits Ugandan university leaders and strategists by increasing the awareness and understanding of SISP and its implementation to promote Higher Education systems. Link : https://www.youtube.com/watch?v=sCTuBVKk0uI&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=18&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE22
Identification of Injury Risk on Guitar Players Using NBM (Nordic Body Map), QEC (Quick Exposure Check), RULA (Rapid Upper Limb Assement), and REBA (Rapid Entire Body Assement) Methods
Sulistiono1*, B Suhardi1, and S Susmartini1 1 Department of Industrial Engineering, Universitas Sebelas Maret, Surakarta 57126 Indonesia
Abstract. Guitar player or guitarist is an activity that is related to the movement of the hands and fingers to play notes and chords on a guitar instrument. If done for a long time, there is a risk of injury to a guitar player's posture, and then it will interfere with his guitar performance and playing. Therefore, it is necessary to identify using several methods including NBM (Nordic Body Map), from 25 respondents there are 3 respondents who experience moderate risk when sitting and 12 respondents when standing. QEC (Quick Exposure Check), having an average exposure level of 46% and 44% means that further research is needed. RULA (Rapid Upper Limb Assement) has a Grand Score when standing and sitting with a score of 7 so, what needs to be done is to immediately investigate the problem and implement changes related to the body posture of the guitar player or the guitar design used. and REBA (Rapid Entire Body Assement), the last score (Grand Score) is 11, while in the sitting position the last score (Grand Score) is 9 indicating that the activity is very dangerous and needs to immediately implement changes related to the body posture of the guitar player or the guitar design used. And the results of the identification will be used as a reference basis in improving good posture in playing the guitar and become the main basis for making design changes to design an ergonomic guitar. Link : https://www.youtube.com/watch?v=E8_HE-jv64g&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=19&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE24
Improvement of Work Method with Eliminate, Combine, Re-arrange, and Simplify (ECRS) Concept in a Manufacturing Company - A Case
Study
A K Nisa1,5*, Hisjam M2 and S A Helmi3,4 Undergraduate Program of Industrial Engineering Department, Faculty of Engineering, Sebelas Maret
University, Surakarta 57126, Indonesia Department of Industrial Engineering, Faculty of Engineering, Sebelas Maret University,
Surakarta 57126, Indonesia Faculty of Engineering, School of Mechanical Engineering, Universiti Teknologi Malaysia,
81310 UTM, Johor Bahru, Malaysia Center for Engineering Education (CEE), Universiti Teknologi Malaysia, 81310 UTM,
Johor Bahru, Malaysia Corresponding author: [email protected]
Abstract. A data storage manufacturing company currently produced more than ten types of hard disk component products both internal and external. Based on observations of their manufacturing lines, some unfavorable conditions were found. This situation indicates an imbalance in the production line. Track balance is very important in a production process. Balancing the production line minimizes idle time at all work stations. One component of a work system that can be improved is the work method. In this study, work method improvements were carried out by applying the concepts of Eliminate, Combine, Re-arrange, and Simplify (ECRS). The benefit obtained from this research is that the company can improve the work system on its production line based on the improvement of the proposed work methods so that it can ultimately increase company productivity. There is an increase in line efficiency in conditions after repair compared to
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conditions before repair. Productivity on the condition after improvement has a takt time value of 8.94 seconds, production capacity of 8461 pcs, PHH of 37 pcs, process time of 98 seconds, and line efficiency of 74.43%. However, the line efficiency generated after the repairs has still not reached the company's target of 90%. Link : https://www.youtube.com/watch?v=7YVR4B64Xdo&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=20&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE25
Analysis of Big Five Personality Traits Moderation that Affecting Safety Leadership, Safety Knowledge and Safety Culture on Safety Performance
A Sudiarno1*, M Islami2 1,2 Department of Industrial and Systems Engineering, Sepuluh Nopember Institute of Technology, Surabaya,
Indonesia [email protected] [email protected] [email protected]
Abstract. This study develops a model that examines the relationship between safety leadership, safety knowledge, and safety culture on safety performance by moderating the personality traits of workers. This model is further evaluated to determine whether the latent variables of leadership attitudes about safety, the knowledge they have of safety by workers, the formed safety culture and personality as defined in the safety theory and personality traits theory, can significantly influence safety performance. The research model was empirically tested using data collected from 70 workers. To know the relationship between latent variables and interactions with moderation variables, this study uses the structural equation model (SEM) method. The results show that all variables have a significant relationship to safety performance, but personality traits cannot moderate the relationship between all independent variables on safety performance. Link : https://www.youtube.com/watch?v=ivg--qi0tJE&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=21&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE27
Realization of Noise Dosimeter Calibration Based on Percentage of Noise Dose Exposure using Absolute Method
B Dwisetyo1,2,3*, D Rusjadi1,2, M R Palupi1,2, C C Putri1,2, F B Utomo1,2, N R Prasasti1,2 D Hermawanto1,2 1 Center of Research and Human Resources Development, National Standardization Agency of Indonesia,
Komplek Puspiptek Gedung 435, Tangerang Selatan, Banten, Indonesia 2 Sub-directorate of Acoustic and Vibration, Directorate of National Measurement Standards of Mechanics, Radiation, and Biology, National Standardization Agency of Indonesia, Komplek Puspiptek Gedung 420,
Tangerang Selatan, Banten, Indonesia [email protected]
Abstract. The application of noise dosimeter in an industrial and construction area has shown an increase in the last decade in Indonesia significantly. The benefit of using this acoustical instrument is having a parameter known as a percentage of noise dose exposure that appropriate for the workers located in a loudness area. Moreover, the industrial necessity related to this instrument calibration quantity tends to increase in recent years. However, the calibration service related to this parameter is not available in Indonesia yet. Therefore, the aim of this work is to realize the calibration of noise dosimeters based on the percentage of noise dose exposure using an absolute method. In this method, it is necessary to apply the insert voltage technique to determine an absolute sound pressure level (SPL), where a whole measurement process is performed in a free field condition. The determined parameter is the percentage of noise dose (D), and
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time-weighted average (TWA) with SPL of 104 dB and 114 dB. From the result, the deviation value of D between the two devices under test and the reference tends to increase and has maximum values at the frequency of 8000 Hz that the values are 2.2% and 3.7% respectively. Meanwhile for the TWA parameter, the maximum deviation for the first DUT is found at the of 4000 Hz that has the value is 2.4 dB(A), while for the other device is about 4.1 dB(A) at the frequency of 8000 Hz. Besides, these methods are necessary to be implemented for validating the calibration of noise dosimeter using acoustic comparison coupler as a prototype research that still under development.
Keywords : Noise Dosimeter, Percentage of Noise Dose Exposure, Absolute Method, Sound Pressure Level Link : https://www.youtube.com/watch?v=SYqEi7L62B4&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=22&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE28
Production Machine Maintenance System Design using Reliability Centered Maintenance
P A Wicaksono1*, S Saptadi1, D Nurkertamanda1 and R Rozaq1 1Industrial Engineering Department, Diponegoro University, Semarang, Indonesia
Abstract. One of the indicators in increasing productivity is the level of reliability of production machines. The reliability level of a production machine is determined by the effective and efficient maintenance process of the company. A case study was conducted in a manufacturing company. In the period January until June 2019, the percentage of machine downtime is more than 3.0% (ideal benchmarking downtime for the manufacturing industry). Research carried out using Reliability Centered Maintenance (RCM). It starts with determining critical objects, then identifies each function of the assets, carries out FMEA analysis and calculates the highest risk of each failure mode, calculates proper maintenance intervals for the five highest failure modes, then ends with making a maintenance strategy by considering risk based inspection. This study aims to develop a maintenance strategy model that is better than what is currently used. By applying Reliability Centered Maintenance, machine reliability can be increased by an average increase of 39.34% and the right maintenance strategy can be found. Furthermore, it will get a new framework to become a new maintenance policy for the company. Link : https://www.youtube.com/watch?v=GC4xDNLDakw&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=23&t=18s&ab_channel=ICIMECE2020
PAPER ID: IE29
Nurse Scheduling Considering Skill Level and Set Rules of Hospital in an Emergency Room
Hana Sekar Ayu Edy Purwanto1,2*, Cucuk Nur Rosyidi1 and Azizah Aisyati1
1Department of Industrial Engineering, Sebelas Maret University 2Corresponding author: [email protected]
Abstract. This paper discusses about nurse scheduling problems in the Emergency Department of Universitas Sebelas Maret Hospital (UNS Hospital) considering the skill level of the nurse. Nurse scheduling is the activity of assigning nurses to work in a certain room in a hospital for a certain period. One of the problems that is often encountered in scheduling is that the schedule is not in accordance with hospital rules. Manually nurse scheduling have the risks of not fulfilling some of the nursing rules set by the hospital. Therefore, this study aims at develop a scheduling model that meets all the regulations set by UNS hospital. Since the number of workdays per period is not evenly distributed, this paper makes a model to minimize variations in the number of workdays per nurse in a period. This model is solved by goal programming method, in order to
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overcome the difficulties in manual schedule. The goal is to determine an optimal nurse scheduling model using goal programming approach taking into account the skill level of the nurses. The optimization model is solved using Lingo 11.0 software for 48 hours. Link : https://www.youtube.com/watch?v=DZU6Wsg8vjs&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=24&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE30
Sustainable Value Stream Mapping Design to Improve Sustainability Performance of Animal Feed Production Process
A A A Putri1, S Hartini1* and R Purwaningsih1 1 Industrial Engineering Departement, Diponegoro University, Semarang 50275,
Indonesia 2 Corresponding author : [email protected]
Abstract. Sustainable-value stream mapping is an integration of lean manufacturing tools and sustainable indicators for sustainability performance evaluation. VSM research has been applied in electronics, furniture, and textile industry sectors. It is interesting to know whether sustainable-value stream mapping can be applied as a tool to evaluate the efficiency of animal feed production because each production sector has different characteristics. This study aims to design a sustainable-value stream mapping as a basis for improving the sustainability performance of animal feed production process. The scientific contribution of the research is selecting relevant sustainability performance indicators for animal feed companies which is identified by a literature study and validated by deep interview with the company's top management. After the metric were identified, then it used to measure the sustainability performance assessment of production process and the result are visualized in current-sustainable-value stream mapping. Also, a future-sustainable-value stream mapping is used to visualized recommendation to improve the performance and estimated its future performance after applied the recommendation. The study was conducted in one of the largest animal feed companies in Indonesia. This study has succeeded in identifying indicators that prevent the sustainability performance of the animal feed production process and provide recommendations for improving sustainability performance for an animal feed production process. Link : https://www.youtube.com/watch?v=fQQUhCuWhjU&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=25&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE32
A Cut-off Grade Optimization Model in Multi Product Open Pit Mining Considering Reclamation and Valuable Waste Materials
R Novitasari1*, C N Rosyidi1, and A Aisyati1
1 Sebelas Maret University, Ir. Sutarmi 36 A Street, Surakarta, Indonesia [email protected]
Abstract. The common problem found in the mining company is how to determine the cut-off grade for the classification of ore and waste. The cut-off grade will greatly affect the revenues and costs of the mining companies. In this study, we develop cut-off grade optimization model by considering multi product and environmental factor such as reclamation and revaluing of waste materials. Multi product was choosen because most of the mining industry not only produce one type of mineral products. The main goal of this study is to develop a cut-off grade model to maximize the net present value (NPV). To illustrate the application of the model, the numerical example is given for mining case using the available data of Golgohar Iron Mine in Iran which produced three types of iron products, such as concentrated, sizing, and pellet.
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Keywords : Cut-Off Grade, Open Pit Mining, Single Item-Multi Product, Reclamation Link : https://www.youtube.com/watch?v=GF90H_iHBmI&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=26&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE33
Development of an Electronic Reverse Logistics Network Model: A Literature Review
D P Sari1,2, N A Masruroh1, A M S Aasih1 1 Department of Mechanical and Industrial Engineering, Universitas Gadjah Mada,
Yogyakarta, Indonesia 2 Department of Industrial Engineering, Diponegoro University, Semarang, Indonesia
Abstract. The rapid development of technology and economy makes consumption of electronic products increased, so the potential for electronic waste will also increase. However, the high potential of this flow has not been matched by good waste management, especially in developing countries. One concept that can be applied to manage end-of-use products is reverse logistics (RL). Still, the RL concept, especially for electronic waste has not been practiced optimally. Therefore, it is necessary to have an RL management network on electronic waste to reduce the environmental impact and increase the economic value of waste. This study aims to provide an overview of research progress RL networks and recommended opportunity areas for further research using bibliometric analysis and systematic literature review (SLR). VOSViewer is the methodology used for analysing bibliometric. The output of bibliometric analysis is research trends on the topic of reverse logistics. The search process of bibliometric analysis is still limited to the keywords has not been done in-depth study of the contents of each article, so it needs to be continued with SLR. Articles obtained from bibliometric analysis are reviewed and analysed using SLR so that the articles will be filtered and the numbers become smaller, so research opportunities in RL for electronics product can be identified. Link : https://www.youtube.com/watch?v=mbA2gsfFxzQ&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=27&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE34
Optimal Treatment Combination for Liquid Soap Based on Waste Cooking Oil According to the Requirements of Indonesian Quality
Standards
S Hartini1,2,Y Fiantika1Y Widharto1 1Department of Industrial Engineering, Diponegoro University, Indonesia
2Email : [email protected]
Abstract. The amount of waste cooking oil increases every year due to the increasing consumption of cooking oil. Most of waste cooking oil is still disposed of to landfills. Waste cooking oil can be processed into soap products to increase its economic value. This research is going to find the best combination of treatment based on quality standard SNI 06-2048-1990. The treatment includes methods (semi-boil and cold), the concentration of KOH (22,5%, 25%, and 27,5%), and adsorption material (kepok banana and activated charcoal). The characteristics of liquid soap were observed is free alkali, the amount of free fatty acids, and pH. The results showed that the pH value and free alkali levels were influenced by a combination of treatment and KOH concentration. pH and alkali values in the cold method are lower than the semi-boiling method. If KOH concentration increases, pH value and free alkali of the liquid soap increased. While the amount of free fatty acids is influenced by the method of manufacture and purification. The amount of free fatty acids in the cold method and activated carbon is lower compared to the semi boiling method and kepok banana peel. The
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best combination of treatments is A1B1C1 (cold method, KOH concentration 22,5%, activated carbon purification material) with a pH value of 9.00, free alkali 0.0546, and free fatty acid 0.3243. The economic benefit of converting WCO to soap is relatively small. However, this effort can increase the added value of WCO, can reduce the negative impact of WCO on the environment as well as empower people to increase waste into products that are more valuable while saving the environment. Link : https://www.youtube.com/watch?v=X9ba_qAQhIw&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=28&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE35
A Cut-Off Grade Optimization Model in Open Pit Mining Considering Reclamation Cost and Revenue
N Baidowi1*, C N Rosyidi1, and A Aisyati1 1Department of Industrial Engineering, Sebelas Maret University, Ir. Sutarmi 36 A Street,
Surakarta, Indonesia [email protected]
Abstract. In open pit mining industry, cut-off grade has an important roles in affecting the total profit that will be earned by the company. In this research, cut-off grade optimization model is developed for open pit mining industry to maximize the total profit. We consider the environmental aspect in this model which consists of reclamation cost and reclamation revenue. We also consider the revenue of sales and valuable wasted materials revenue, and also the cost of selling stage, processing cost, mining cost, waste removal/rehabilitation cost and fixed cost. The results show that the model is able to determine the optimal cut-off grade and total profit that will be earned by the company can be estimated. Besides that, we can also estimate the completion time of mining project and the value of Net Present Value (NPV) and Return on Investment (ROI). The application of the model can be illustrated using numerical example that given in this study.
Keywords : Open Pit Mining, Cut-Off Grade, Reclamation Process, Analytical Solution Link : https://www.youtube.com/watch?v=kpvw736u6a8&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=29&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE36
An Optimization Model of Nurse Scheduling using Goal Programming Method: A Case Study
Meidi Putri Ariyani1,2*, Cucuk Nur Rosyidi1 and Azizah Aisyati1
1Department of Industrial Engineering, Sebelas Maret University 2Corresponding author: [email protected]
Abstract. Nurse scheduling problem involves assigning of each individual nurse in the hospital so that a series of tasks can be completed. To increase patient satisfaction, skilled and disciplined nurses are needed. In the field of health care, nurse scheduling is a challenging activity because of the different levels of nurses needed on different shifts and days. However, it often happens where a number of nurses assigned do not meet the specific needs of nurses so that the performance of nurses at each shift is not optimal. In this paper, an optimization model is proposed using goal programming method to determine the optimal schedule using Lingo 11.0 software. The model is implemented in the Yustisia Room, a special room for treating covid-19 inpatients in Universitas Sebelas Maret Hospital. The results of the optimization showed that all conditions that need to be achieved in scheduling which previously unfulfilled in manual schedule, such as the minimum requirement number of senior nurses and male nurses in each shift can be fulfilled. For additional target, which is total working days, the proposed model can produce a better schedule for regular nurses and better
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assignment patterns for all nurses, where all regular nurses have the same total number of working days, which is 17 working days. Link : https://www.youtube.com/watch?v=WXOkQ93uBdM&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=30&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE37
Survey of Accredited Calibration Laboratories in Indonesia to Ensure Metrological Traceability Based on ISO/IEC 17025:2017(Case Study:
Gauge Block Calibration Services)
Muhammad Haekal Habibie*, Ocka Hedrony, Eka Pratiwi Center for Research and Human Research Development, National Standardization Agency of Indonesia,
South Tangerang, Banten, 15314, Indonesia *Corresponding author e-mail: [email protected]
Abstract. One of the actors managing national quality infrastructure in Indonesia is accredited calibration laboratory that regulates the strategic role of facilitating trade activities. Metrological traceability of accredited calibration laboratory is an inherent entity, which determines the validity of calibration result. In the context of activities based on ISO/IEC 17025:2017 standard, metrological traceability is the most fundamental and much needed element. Therefore, it is necessary to survey the accredited calibration laboratory as respondents of research to know the condition of metrological traceability in Indonesia. The survey was conducted using questionnaire for the respondents. The limitation of the research was carried out by selecting respondents who had gauge block calibration services. From the survey results, it was found that the majority of the metrological traceability of the respondents was obtained from SNSU-BSN which is the National Metrology Institute (NMI) in Indonesia and also from the private calibration laboratory. SNSU-BSN as NMI in Indonesia has carried out its role as a gauge block calibration service provider and oversees metrological traceability on a national scale Link : https://www.youtube.com/watch?v=edA8lQ4pEqs&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=31&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE38
Review of Natural Disaster Shelter Site Selection using Geographic Information Systems
Slamet Setio Wigati1,2*, Bertha Maya Sopha1, Anna Maria Sri Asih1, Heri Sutanta3 1Industrial Engineering, Universitas Gadjah Mada (UGM), Indonesia
2Industrial Engineering, Universitas Atma Jaya Yogyakarta, Indonesia 3Geodetic Engineering, Universitas Gadjah Mada (UGM), Indonesia
[email protected], [email protected], [email protected], [email protected]
Abstract. Geographic Information Systems (GIS) have become one of the most useful tools to support decisions including in natural disaster shelter site selection. This paper reviews various studies conducted by researchers implementing GIS for the shelter site selection problems. Most of the reviewed papers use optimization models for the selection shelter location problem while some papers use GIS and multi-criteria decision making, In the optimization problem for shelter locations, GIS acts as a support in providing data and processing data before the optimization process, in determining the optimal solution during the optimization process and in displaying and evaluating the results of the optimal solution after the optimization process. This paper aims to provide an overview of current insights on the use of GIS in the selection of shelter locations, both in optimization and without optimization, and to provide a gap for further research.
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Link : https://www.youtube.com/watch?v=tAbRU_GUivY&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=32&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE39
Optimization Model for Determining Order Quantity for Growing Item Considering Incremental Discount and Imperfect Quality
L Luluah1*, C N Rosyidi1, and A Aisyati1 1Department of Industrial Engineering, Sebelas Maret University Jl. Ir Sutami 36 A,
Surakarta, Indonesia 57126 [email protected]
Abstract. This research develops an optimization model of order quantities for growing items by considering incremental discounts and imperfect quality. For growing items, the assumption that inventory weights that always fixed cannot be applied. The supply system has grown so that the weight of the inventory has increased over a certain period. The proposed inventory system has two periods namely growth and consumption period. Suppliers offer incremental discounts for certain purchases. In this research also considered the existence of imperfect quality, where for newborn items purchased at the beginning of each cycle found items with poor quality and death. During the growth period, not all items survive until the end of the period, therefore also considering the probability density function of survival and death of growing items. The proposed inventory system is maximization profit, with total profits being an objective function, and cycle times and order quantities as decision variables. Costs involved include purchased cost by considering by incremental discounts, setup costs, holding costs, and disposal costs. Application and model validation is demonstrated by numerical examples in the poultry industry. The model developed in this study can be used as a suggestion for companies to make purchasing decisions. Link : https://www.youtube.com/watch?v=yOeRs8QNIJE&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=33&t=0s&ab_channel=ICIMECE2020
PAPER ID: IE40
A Truck Allocation Optimization Model in Open Pit Mining to Minimize Investment and Transportation Costs
M F Isnafitri1*, C N Rosyidi1, and A Aisyati1 1 Sebelas Maret University, Ir. Sutarmi 36 A Street, Surakarta, Indonesia
Abstract. In this research we developed an optimization model to determine truck allocation in open pit mining. The objective function is to minimize a total cost consists of investment and transportation costs. Investment cost is the purchase price of truck in early mining project according to the number of truck needed in each route. The transportation cost consists of fix cost for operators’ wages and variable cost in the form of fuel cost of trucks and shovels. The selection of truck types with different specifications is an important factor in the continuity of materials transportation by considering the costs incurred The model is solved using Oracle Crystal Ball Software for 5000 iterations. The result of optimization shows that Truck 75570 is selected to transport for route 1 and Route 4, Truck 75174 is selected to transport for Route 2, Truck 772 is selected to transport for Route 3, Truck 777F is selected to transport for Route 5, and Truck 7547 is selected to transport for Route 6. The total cost resulted from the optimization is IDR 295,783,073,068.69.
Keywords : Truck Allocation, Investment Cost, Transportation Cost, Open Pit Mining Link : https://www.youtube.com/watch?v=ua-ASU-au9k&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=34&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE41
Development of Personality, Social Cognitive Theory and Safety Culture Relationship Models to Reduce Work Accidents in the Chemical Industry
R N Sari1 and D S Dewi2* 1,2 Department of Industrial and Systems Engineering, Sepuluh Nopember Institute of Technology, Surabaya,
Indonesia [email protected], [email protected] (Corresponding Author)
Abstract. Mental errors caused by anxiety, attitude, fear, stress, personality, or emotional state can cause accidents. To prevent workplace accidents, understanding the workers’ personality that reflect the pattern of psychological characteristics, thought, emotion and behavior is important. Personality is a basic human characteristic that is influenced by the social and cultural environment called socio-cognitive. A safety culture approach to the reducing accidents emphasizes the role of social forces in organizations regarding safety. This study aims to determine the relationship of personality, social cognitive, and safety culture to workplace accidents in the chemical company. The data was collected by distributing questionnaires to 73 workers, including the production area and the field workers in a chemical factory. The data is statistically tested by using PLS-SEM. The PLS-SEM used to determine the relationship between personality traits and safety culture (H1), the relationship between social cognitive and safety culture (H2), and the relationship between social cognitive and personality traits (H3) in chemical company. The test results show that the three hypotheses were accepted. This lead to the conclusions that personality traits have a positive relation to the safety culture; social cognitive have a positive relation to safety culture; and social cognitive have a positive relation to personality traits. In conclusion, personality traits, social cognitive, and safety culture are interrelated.
Keywords : Big five personalities, personality, safety attitudes, safety awareness, safety behaviour, safety Culture, safety efficacy, social cognitive theory Link : https://www.youtube.com/watch?v=FAGRHSYii8g&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=35&t=0s&ab_channel=ICIMECE2020
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PAPER ID: IE42
Redesign of Facilities Layout Using Systematic Layout Planning (SLP) on Manufacturing Company : A Case Study
A T Haryanto1* , M Hisjam1 and W K Yew2 1Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas
Maret, Surakarta 57126, Indonesia 2Department of Manufacturing and Industrial Engineering, School of Mechanical Engineering, Faculty of
Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
Abstract. In a competitive market, manufacturing companies have to produce cost effectively which can be realized by minimizing production cost and higher effectiveness. The effective facility planning can significantly reduce the operational costs of companies. An adequate facility layout can result in the improvement of the performance of the production line. The facility layout problem is relating to location of objects (departments, workstations, machines, etc.) on a given site and the material flow between these objects. The goal of this study is to minimize production cost by redesigning of facilities layout using systematic layout planning (SLP) method. After observing, the company experienced several obstacles in the layout of company facilities, one of which was found in the Brushing Room. This can affect the next production process and will affect the long-term sustainability of the company. One of the causes of this waste can be marked by the alternating flow during the production process of the Tressel parts which is one of the products produced by the company. To correct the problem of the layout of the existing facilities in the company, it is necessary to redesign the layout of the facilities based on the production process flow. Based on previous research, two methods were chosen to improve the layout of the facilities at the company, namely the Systematic Layout Planning (SLP) method to minimize costs material handling resulting from the production process. Layout suggested using the SLP method succeeded in reducing the material handling costs (OMH) of the production process flow of the Tressel. This can result in savings in the company’s material handling costs, from before the repairs were made to IDR 5,377,415 per month, to IDR 2,971,717. OMH is reduced by IDR 2,405,698 in each month. Resulting in savings of 44.7%.
Keywords : Truck Allocation, Investment Cost, Transportation Cost, Open Pit Mining Link : https://www.youtube.com/watch?v=vywZCHa5W1c&list=PLxk03d9FJa_Z6Kz4P78v4oe_4O6-XZADS&index=36&t=0s&ab_channel=ICIMECE2020
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ELECTRICAL ENGINEERING
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PAPER ID: EE02
Design Low Cost and Contactless Temperature Measurement Gate Based on the Internet of Things (IoT)
Agus Ramelan1*, Gilang Satria Ajie1,Muhammad Hamka Ibrahim1, Subuh Pramono 1, and Muhammad Adli Rizqulloh2
1Departement of Electrical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia 2Departement of Electrical Engineering Education, Universitas Pendidikan Indonesia, Bandung, Indonesia
Abstract. Temperature measurements in preventing the spread of Covid-19 will be carried out automatically using a gate equipped with a temperature sensor. This tool is designed in a portable way, allowing monitoring of body temperature data at certain locations utilizing cloud-based technology provider services Internet of Things (IoT) that is integrated with device medical assistance (the nearest hospital). Hence, it can be followed up to get the first treatment. The hardware design of this device is equipped with an LED running text to display a person's body temperature in real time and also an alarm for the body temperature measured to exceed the tresshold. The software design uses the wifi protocol to process data from sensors for monitoring by end-users in the form of mobile or web app via the server cloud platform by HTTP Post protocol. The results showed that CTM-IoT has a precision of 99.8% and an accuracy of 99.6%. This tool is suitable to be implemented at gate terminals, stations, airports, malls, etc. without being operated directly by officers at close range.
Link : https://www.youtube.com/watch?v=7j2OEfgVujE&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=2&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE03
Performance Evaluation of Different Objective Function in Pid Tuned by PSO in DC-motor Speed Control
Hari Maghfiroh1*, Joko Slamet Saputro2, Chico Hermanu3, Muhammad Hamka Ibrahim4, Augustinus Sujono5 Department of Electrical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
[email protected], [email protected], [email protected], [email protected], [email protected]
Abstract. The electric motor is an electromagnetic device that converts electrical energy into mechanical energy. There are many industrial sectors using electrical motors. Almost 90% of industries still use PID control because of its simplicity, applicability, and reliability. However, the weakness of PID is that it takes a long time to tune. PSO is one of the optimization methods which can be used to tune PID. The objective function is needed when using PSO to tune PID control. Five different objective functions which are ISE, IAE, ITSE, ITAE, and MSE is compared in terms of performance and control energy. The PID controller is applied in DC motor speed control in a simulation environment. Three testing condition is carried out which is step responses, set-point changes, and disturbance rejection. The simulation result shows that in terms of performance, ITSE is the best one. On the other hand, in terms of control energy, ISE is using the lowest energy to control the plant.
Link : https://www.youtube.com/watch?v=2alAgcvPQ3U&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=3&t=0s&ab_channel=ICIMECE2020
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PAPER ID: EE04
Design and Simulation Multilevel Boost ConverterUsing PI-Controller Ziegler Nichols Method
Mochammad Bagus Kurniawan1 *, Moh Zaenal Efendi2 , Farid Dwi M3 1,2,3Department of Electrical Engineering, Electrical Engineering Polytechnic in Surabaya (EEPIS),
Surabaya, East Java, Indonesia Email: a)[email protected], b) [email protected], c )[email protected]
Abstract. Nowadays renewable energy is being the most important thing to research such as solar energy, wind energy, and hydro energy. The purpose is to reduce the emission of carbon dioxide and make the environment cleaner. In this paper, we study how to design a Multilevel Boost Converter (MLBC). This Converter is a Boost Converter with an upgrade of the Parallel Diode Circuit and Capacitors Circuit. MLBC (Multi-Level Boost Converter) have more advantages with low voltage input change to the high voltage output. The Principle of MLBC is like the Boost Converter, but have high ratio conversion without adding transformation for a step up the voltage. The output setting will be stabilizing when they get the minimum input range to reduce the drop voltage from an input that used Solar Panel, It used MISO (Multiplied Input Single Output), the MISO contains Solar Panel and Battery with the parallel circuit set. DC Micro Grid using as DC BUS for distributed the voltage from the source to load for the maximum output power it used 100-200 Watt. The Method of control voltage it used PI - Ziegler Nichols-1 for controlled the Multi-Input Single Output (MISO) block, the first control used to make the input of MLBC stabilize for 30 - 40 V step up to 200 - 250 Volt. The Load of DC BUS example: Inverter, 3 Phase Motor, Led DC, Battery Energy Storage at this project used an inverter with 3 phase motor for a load of the converter. The Maximum Output Power from a design of this converter is 234.87 Watt according to the DC load and the maximum efficiency of the converter is 86 %.
Keywords: MLBC; Boost Converter; MISO; DC Micro Grid; PI-Ziegler Nichol; DC BUS, Inverter; Led DC; Batteray Energy Storage.
Link : https://www.youtube.com/watch?v=Dz1Mw2hh9m4&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=4&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE05
Multi DC Load Single Port Output Adaptive Power Charge Using Fuzzy Logic Controller
An Nisaa Maulidyna1 *, Indhana Sudiharto2, Farid Dwi Murdianto3 1,2,3Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya.
Surabaya, East Java, Indonesiaannisaamaulidyna@gmail.
com
Abstract. The battery is an electronic device that is capable of storing electrical energy. The ability of batteries to store electrical energy is widely used to supply DC loads. Batteries on a wide range of DC loads have varying voltages and capacities. Generally, battery chargers are likely to be static with one specific load voltage. One charge device is usually used to charge one type of DC load. The Adaptive power charge system can be used to charge various types of DC loads with different voltages and capacities through one output port. In this paper method of charging with constant voltage, to keep the output voltage from the SEPIC converter stable used fuzzy logic controller. In this research, the adaptive power charge system using a fuzzy logic controller can charge various types of DC loads with different voltages, has a 99.8% precision with an average error of less than 0.16% and the system reaches a steady-state at 0.4 seconds. Adaptive power charge makes it easy to charge various types of DC loads.
Keywords : Adaptive power charge, Fuzzy logic controller, SEPIC Coverter, DC load
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 73
Link : https://www.youtube.com/watch?v=wPE5chGGBDw&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=5&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE09
Cyber Physical Systems Based PID Controller for Three Interacting Tank Process Level Control
E Joelianto1*, V Nadhira1, H Hammami2, and Hariyadi2 1Instrumentation and Control Research Group, Faculty of Industrial Technology, Institut Teknologi Bandung,
Bandung 40132, Indonesia 2Engineering Physics Study Program, Faculty of Industrial Technology, Institut Teknologi Bandung,
Bandung 40132, Indonesia *E-mail: [email protected]
Abstract. This paper considers the performance improvement of PLC-based process control systems through Industry 4.0 by harnessing cyber-physical systems (CPS), which is an integration of control, computation, and networking to intertwine intensely cyber and physical components. To accomplish these needs, open process control (OPC) unified architecture (UA) is exercised as a horizontal and vertical integrator of the CPS-based process automation. The three interacting tank process is the preferred testing plant because this system has become a proven benchmark for testing advanced control system in the laboratory scale. In this paper, the cyber component accomplishes parameter optimization of the PID controller for the level control of the three interacting tank process and schedules the appropriate PID controller that matches the level operating conditions. The control implementation shows that CPS for the level control of the three interacting tank process works well by resulting in smaller integral square error (ISE) value. Moreover, the cloud-based database can be established directly using OPC UA for real-time monitoring of the process through websites using the Internet network with data delivery rate of 100%.
Link : https://www.youtube.com/watch?v=PRakbEKDuxk&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=6&t=2s&ab_channel=ICIMECE2020
PAPER ID: EE10
Design and Simulation of Single-Input Multi-Output (SIMO) Flyback Converter Using PI Controller for Emergency Power Supply
Farah Cindyanita Saputri1*, Moh. Zaenal Efendi2 and Farid Dwi Murdianto3 1,2,3Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya, Keputih Sukolilo,
Surabaya, Indonesia [email protected]
Abstract. The electricity problems in some regions are different, it can be caused by various things e.g power outages and lack of electricity availability. Whereas the need for electrical energy is increasing as human needs increase. The importance of electricity supply for electronic equipment during disaster or emergency condition forces the electricity needs to be fulfilled and supplied continuously. An emergency power supply is commonly used to solve these problems. However most of the emergency power supply is only intended for single-input single-output needs. This paper refers to a single-input multi-output flyback converter as an emergency power supply that can provide a multi-output system that has two different output voltage levels, which is specified for charging notebook and cell phone using a PI controller as a voltage regulator. Based on the simulation result, the system can obtain the desired output voltage (19 V and 9.5 V) and also can reach the steady-state response in 0.017 s.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 74
Link : https://www.youtube.com/watch?v=Y0zoKU7Qq1Y&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=7&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE11
Modeling and Simulation of MISO-Buck Converter Using ANFIS on DC Microgrid Distribution System
R P Anggraini1*, M Z Efendi2, F D Murdianto3 1.2,3Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya
Abstract. Currently, the development of the utilization of renewable energy sources such as solar energy and wind energy has increased significantly. Interconnecting grid with renewable energy sources combination is developed to increase power and reliability of the system. However, when the energy sources are combined there will be many configurations of power distribution from each source, moreover the power produced by the renewable energy is fluctuating while the load requires a stable voltage and energy continuously even though the supply sources is changes. Therefore Effective energy management is required to regulate the power distribution of both energy sources automatically that can provide energy to the load continuously and optimally. In this paper a MISO- buck converter is proposed to combine several energy sources using ANFIS. The simulation results show that ANFIS can maintain the output voltage with a very small minimum error percentage only 0.023% and can achieve a faster settling time of 4.032 ms if we compare with PID that is 1.489% for the error percentage and 12.308 ms for the settling time.
Link : https://www.youtube.com/watch?v=eIJMc4w0Jgo&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=8&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE12
Design and Implementation of Bipolar Sepic-Cuk Converter with Fuzzy Logic Control for Battery Charging Application
Dickry Junior Triandy1*, Endro Wahjono2, Farid Dwi Murdianto3 1 Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya. Surabaya, East Java,
Indonesia [email protected]
Abstract. This research presents the design of an electricity distribution system with a solar cell source that is applied to the battery charging process. The charging setting uses a modified DC-DC converter configuration from the modified Sepic and Cuk converters. With one Bipolar Sepic-Cuk Converter voltage source produces two outputs of the same voltage value with different polarities. The method applied is constant voltage, where the voltage generated by the solar panel will always be constant and the same in accordance with the setpoint specified in the charging process. The control used is a fuzzy logic control that functions to regulate the PWM output signal by getting the duty cycle value. The voltage sensor is used as feedback from the control to be processed by the microcontroller so as to produce a PWM signal which will be used to regulate switching on the Bipolar Sepic-Cuk converter circuit. The output voltage of the converter has been achieved with fuzzy control with irradiation and temperature variations. The results of the output voltage can be maintained at a predetermined voltage. The error percentage of the generated voltage is equal to 0.14 - 0.5%.
Keywords : Bipolar, Sepic Converter, Cuk Converter, Charging , Fuzzy Logic
Link: https://www.youtube.com/watch?v=a8tNgAO0MvA&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=9&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 75
PAPER ID: EE14
Prediction Point Of Fault Location On ITS Campus Power Grid By Using Neural Artificial Method
Achmad Syamsudina*, Isa Hafidza,b*, Daeng Rahmatullahc, Dimas Anton Asfania, I Made Yulistya Negaraa
aElectrical Engineering Departement, Institut Teknologi Sepuluh Nopember, Surabaya, 60111 Indonesia bElectrical Engineering Departement, Institut Teknologi Telkom Surabaya, 60231 Indonesia
cElectrical Engineering Departement, Universitas Hang Tuah, Surabaya 60111 Indonesia [email protected]
Abstract. The dispersed electric load connected to the power system leads to various nominal current and direction. However, to protect the plan optimally, relay settings must be updated according to its configuration. This paper investigates the prediction of fault location point for Directional Overcurrent Relay (DOCR). The system used Institut Teknologi Sepuluh Nopember (ITS) Campus electricity system connected to the grid utility. Artificial Neural Network (ANN) include data combination of power flow and short circuit as input data, can determine the appropriate fault location of the system. From the result, the data set in the master control has a smaller composition than by performing manual looking for tables. From the simulation result, 313 testing data obtained an average error of 0.002614377 so that the test results are quite close to the target data. Another advantage is that fewer data must be entered in Master control when using ANN, 136 data, compared using a lookup table, 1512 data. Through this method, the user can predict the fault location quickly and accurately.
Keywords : Artificial Neural Network, Campus Electricity, Directional Over Current Relay, Fault Location
Link : https://www.youtube.com/watch?v=i3NXSGY7o7M&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=10&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE15
IoT Based Building Energy Monitoring and Controlling System Using LoRa Modulation and MQTT Protocol
Agus Ramelan1*, Feri Adriyanto1,Chico Hermanu B.A.1, Muhammad Hamka Ibrahim 1, Joko Slamet Saputro, and Oki Setiawan1
1Departement of Electrical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia [email protected]
Abstract. Building energy monitoring systems are carried out to facilitate the monitoring and controlling of building energy consumption. Monitoring and controlling the use of electrical energy in real-time in a building has an impact on the pattern of regulating the efficiency level of energy use. This paper presents an effort to optimize energy consumption by using an energy management system using LoRa modulation and MQTT protocols. Sensors that feed electrical power data to a custom energy monitoring system are compiled by a set of sensors equipped with a power supply that is fastened to the system on a microcontroller with a LoRa communication interface then are called nodes. The nodes consist of arduino uno as a microcontroller, dragino LoRa Shield, ACS712 current sensor, ZMPT101B voltage sensor, and relay. Dragino LoRa Gateway LG01-N is used to connect the measured parameters to the IoT cloud server. MQTT protocol is used for the broker between nodes and servers using subscribe and publish method. In the initial experiments, the data visualization platform used was the open-source thingspeak platform. This platform includes a data visualization template and enables device control for savings. In the end nodes, the voltage, current, and power sensor accuracy error are 1,24%, 2.60%, and 3.13%.
Link : https://www.youtube.com/watch?v=Fj1oULk4SEo&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=11&t=1s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 76
PAPER ID: EE17
Binerization of Panoramic Dental Image for Dental Anatomy Identification
B Fatkhurrozi1*, I Setyowati2 and C R Nurhayata3
1, 2, 3 Electrical Engineering Department, Faculty of Engineering, Universitas Tidar, Jl. Kapten Suparman 39 Magelang
Abstract. Dental image is used for identification of a person because it can provide a lot of information about dental such as tooth contour, tooth position, and tooth shape. This research aims to process dental panoramic images in the form of greyscale images into binary images. Converting the greyscale image to binary is known as the thresholding process. The thresholding process is also called binerization. The input data used in this study is in the form of dental anatomical images produced by dental panoramic devices. The data used were 20 images, namely 10 abnormal dental images and 10 normal dental images. Results for the identification of dental anatomy with binerization the system and the manual calculation are the same. Identification normal dental are 50% and abnormal dental are 80%.
Link : https://www.youtube.com/watch?v=34Y93hWZUp8&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=12&t=7s&ab_channel=ICIMECE2020
PAPER ID: EE18
Performance Evaluation of Fuzzy-PID in Speed Control of Three Phase Induction Motor
Hari Maghfiroh1*, Joko Slamet Saputro2, Feri Adriyanto3, Augustinus Sujono4, R. Lulus Lambang5 1,2,3,4 Department of Electrical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia 5 Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
[email protected], [email protected], [email protected], [email protected], [email protected]
Abstract. Induction motor (IM) is one of AC motor type which mainly applied for adjustable speed applications and consumes approximately 60% of the total industrial electricity consumption. IM is chosen due to its simple structure, reliability, high efficiency, and low cost. There are two main methods in speed and torque control of IM which are scalar control and vector control. Vector control is divided again as Field Oriented Control (FOC) and Direct Torque Control (DTC). In this research, DTC is chosen due to its simplicity compared with FOC. PID is reported that used by 90% industrial section because of its simplicity, applicability, and reliability. Fuzzy Logic Control (FLC) is one of the artificial intelligences that can be used to online tune the PID parameters. The simulation of speed control of the IM base on DTC has been carried out. The simulation result shows that in both no-load and loaded tests, Fuzzy-PID gives better results in speed tracking. In terms of control energy, Fuzzy-PID consumes more energy by 4.5% with better performance in the no-load test. Whereas for the loaded tests, it also has better performance with less energy by 1.03 % compared with PID.
Link : https://www.youtube.com/watch?v=wF-L6V91NO0&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=13&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 77
PAPER ID: EE19
Design and Implementation of Hybrid Filter for Harmonic Reduction and Damped Resonances in Non-Linear Loads
Y C Arif 1, L P S Raharja2, S Auladah3* 1,2,3Department of Electrical Engineering, Politeknik Elektronika Negeri Surabaya, Indonesia
Abstract. The use of Power Factor Correction (PFC) is generally used to increase the power factor in a system plan. However, the system will be dangerous if there are non-linear loads on the system that causes resonance risk. The impedance of the capacitor bank for PFC can interact with the non-linear loads and the impedance of the up-transformer which causes series and/or parallel resonances. Resonance causes surges in currents and voltages at harmonic frequencies. This problem can be solved by adding a detuned reactor filter in PFC. However, the implementation of detuned LC passive filters can’t reduce all harmonic components. This paper presents a hybrid filter consisting of a detuned LC passive filter and an active filter to reduce harmonics, avoid the system from resonance risk, and to improve the power factor. This system using 5Kvar of capacitor bank and a 14% detuned reactor filter combined with an active filter. The results of power quality increasing the power factor from 0.6 to 0.88, THDi is reduced from 49.5% to 18% after using a hybrid filter.
Link : https://www.youtube.com/watch?v=odWA2fAUzQw&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=14&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE20
On Grid Photovoltaic Power Monitoring Based on Open Source and Low Cost Internet of Things Platform
H Prasetyo Politeknik ATMI Surakarta, Program Studi Teknik Mekatronika, Jl. Mojo/Jl. Adisucipto No.1, Karangasem,
Laweyan, Surakarta, 57145, Jawa Tengah, Indonesia [email protected]
Abstract. IoT (Internet of Things) is a technology that allows devices to exchange data automatically through available network infrastructure. It is applicable for on grid photovoltaic system monitoring. It allows the user to find out how much the installed photovoltaic system can contribute to the electricity savings. However, this technology often makes the photovoltaic system cost more expensive. This research aims to propose a design of low cost on grid photovoltaic power monitoring equipped with cost savings information. The design is based on open source platform. The proposed design utilizes NodeMCU, MQTT, Node-RED, Raspberry Pi, and a non-invasive CT sensor. All of the components from the proposed system design cost around $ 62 which is considered to be relatively cheap. The accuracy of power measurement is tolerable. There are eight information presented in the monitoring’s user interface, namely Real Time Power, Runtime, Maximum Power Achieved, Total Energy Savings, Total Money Savings, Overall Savings Rate, Power Monitoring Log, and Last 24 Hours Energy Record.
Link : https://www.youtube.com/watch?v=9BaGSXrXUEI&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=15&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 78
PAPER ID: EE22
Design of Microcontroller-Based Potentiostat for Determination of Ethanol Integrated with Smartphone through Internet of Things
Igor Muhammad Farhan1*, Muhammad Nizar Aldy2, Jihan Nabillah2, Feri Adriyanto1 1 Department of Electrical Engineering, Universitas Sebelas Maret, Jln. Ir. Sutami 36A,
Surakarta 57126, Indonesia. 2 Department of Chemical Engineering, Universitas Sebelas Maret, Jln. Ir. Sutami 36A,
Surakarta 57126, Indonesia. [email protected]
Abstract. Ethanol is the most alcohol used in daily life. Ethanol can be found in drinks, cosmetics, medicines, flavorings, and many more. Each product requires a different concentration of ethanol. Ethanol concentration can be measured using conventional alcohol meter, but requires a large number of samples and mistaken from reading the measurement can occur. This study aims to make a potentiostat based on the microcontroller to determine ethanol concentration that is easy and accurate. Potentiostat consists of several components of resistors, capacitors, operational amplifiers, and Arduino Mega 2560. Measurements were carried out using the electrochemical analysis fixed potential amperometry which the fixed potential was determined by linear sweep voltammetry. Carbon (C) is used on the working electrode and counter electrode which act as the sensor. From the test results obtained a negative relationship between the increasing concentration against current with a correlation coefficient 0.9998. The level of precision and accuracy of the device that has been made shows good results. The level of precision represented by the mean relative standard deviation (MRSD) obtained a result of 95.18%. While the accuracy value represented by the root mean square error (RMSE) results of 97.08%.
Link : https://www.youtube.com/watch?v=4g0ui9JJcIM&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=1
PAPER ID: EE23
Utilization of Information System in Dies Control for Improvement of Quality and Production Efficiency in Manufacturing Industry
Subuh Pramono 1, a)*, Hanifah Yulia2, b), Bima Damar Jati 3, c), Agus Ramelan4,d) and Joko Slamet Saputro5,e) 1,2,3,4,5Department of Electrical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami
No.36 A, Jebres, Surakarta 57126, Indonesia a)Corresponding author: [email protected] b)[email protected],
c)[email protected] d)[email protected] e)[email protected]
Abstract. Utilization of Information Systems in Dies Control for Improvement of Quality and Production Efficiency in Manufacturing Industry is a system that is used to anticipate damage to dies before the dies are used, because if a damaged dies is used will be very detrimental to the company. There are 4 views: Dies master, Entry production, Dies maintenance and dashboard. Dies master is a page used for initial dies data input. Entry Production is a page that is used to input daily production output because from this page you will get actual OK production data and actual NG production which will be used to compare between the maximum use of dies and the number of actual OK production and actual NG production. If the sum of the actual Production OK and the actual NG production is greater than the maximum use of dies, the dies must be maintained immediately. Maintenance Dies serves as input data for maintenance Dies, in the maintenance dies page there are also 3 features: Entry Maintenance Dies functions as a date data input menu and only comments mainly because other data already exists on the master dies, Summary on Maintenance dies serves to display the date or last maintenance date and the last maintenance time interval with today, the Details on the Maintenance Dies function displays all dates if the summary only shows one last date the details display all dates, so you can find out how many times the dies have been maintained. and the last is this Dashboard function to display the results of all data that has been inputted.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 79
The main function is to display the status of dies, it will be seen if the red color of the dies has to be fixed, if the yellow color is warning because the number of hits is 90% of the maximum result of using dies, if green can still be used.
Link : https://www.youtube.com/watch?v=pVzenGHhbhs&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=2
PAPER ID: EE24
Web-based Telegram Chatbot Management System: Create Chatbot Without Programming Language Requirements
Muhammad Wahid Hasyim1, Subuh Pramono2* and Sutrisno3
1,2,3 Department of Electrical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Jl. Ir. Sutami 36 A, Jebres, Surakarta, Indonesia
*Corresponding email : [email protected]
Abstract. The growth of communication technology that keeps developing, the way we obtain and provide information are developing. One of the applications that get lots of interest is Telegram. This application makes out communication easier. The development of communication model through Telegram is developing as well, one of the models is the chatbot. Chatbot can be made answers a lot faster. Until recently, chatbots are mostly created with a particular programming language. This makes creating a chatbot only limited to those who understand the programming language. Although many applications offer to create a chatbot without programming by big vendors, but there hasn’t been any academic literature for this topic yet. Therefore, in this research, I will design and implement the Telegram chatbot management system. This application provides to create a chatbot without programming language requirements. The user just needs to set the keyword and choose what action will chatbot give. This application also provides a direct message, broadcast message, and display usage statistics. This application tested by creating actions set, buttons set, command, direct message, broadcast message, and display usage statistics. The user can do all of those without any programming language requirements.
Link : https://www.youtube.com/watch?v=1AKLrN2liVg&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=3
PAPER ID: EE25B
Prototyping Adaptive Cruise Control on Electric Motorcycle
D A Purba1, M Nizam*2,3, H Maghfiroh2 and M R A Putra3,4, Inayati5
1 Undergraduate Program of Electrical Engineering Department, Faculty of Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
2 Department of Electrical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
3 Lithium Battery Research and Technology Centre, Universitas Sebelas Maret, Jl. Slamet Riyadi 435, Surakarta 57146, Indonesia
4 Department of Mechanical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
5 Department of Chemical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Corresponding author: [email protected]
Abstract. Electric motorcycle is one of the vehicles that can operate using alternative fuels, namely with electrical energy. Travel between cities over great distances, of course this results in a high risk of accidents. Additional features are needed that can warn and stop the electric motorcycle before crashing into other
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vehicles in front of it. Cruise Control is an automatic technology that is embedded in the automotive system to maintain a constant speed. Prototype refers to the physical and digital representation of pre-production models. This research focuses on applying ultrasonic sensors as distance detectors for the prototype adaptive cruise control system which will be installed as an additional feature on electric motorcycles. The method used in this research starts from simulating a series of systems on Proteus 7.9 software, then designing electrical and software devices on prototyping, and testing. The results obtained by adaptive cruise control mode by testing the variation of distance to PWM duty cycle changes in the simulation compared to prototyping, found an error of ± 1.53%, this shows the prototype Adaptive Cruise Control can work well.
Link : https://www.youtube.com/watch?v=utk23J5J2So&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=4
PAPER ID: EE26B
Electromyography (EMG) and Hand Gripping Force during Standing and Sitting
Mardhati Mahadi1, Nurhazimah Nazmi2,*, Nurul Aini Bani1, Sharifah Alwiah Syed Abd. Rahman1, Norliza Mohd Noor1 and Siti Zura A. Jalil @ Zainuddin1
1 Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
2 Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia
Abstract. Musculoskeletal disorders reduced the motion and strength of upper limb muscle, especially when doing a task repeatedly. Evaluation of upper limb muscle strength has been commonly conducted using hand grip strength measurement. Previous studies had explored Electromyography (EMG) and hand grip strength but when studies related body postures, only hand grip strength method was considered. However, previous studies involved the effect of body postures on upper limb muscle strength only focused on hand grip strength method, not EMG. The aim of this study is to investigate the effect of EMG time domain during standing and sitting while gripping in order to identify the postures that are riskier for musculoskeletal injuries. Three feature extraction namely root mean square (RMS), mean absolute variance (MAV), and variance (VAR) were used to represent the EMG. Based on the result, the responses of 0.118 μV, 0.0613 μV, and 0.0139 μV were recorded at sitting position while 0.1455 μV, 0.0843 μV, and 0.0148 μV were recorded at standing position, for respective feature extractions. It shows that the response value of EMG changed for different body postures. To conclude, the body posture is crucial when conducting the upper limb studies for both hand grip strength measurement and EMG.
Link : https://www.youtube.com/watch?v=_7xViQP02xE&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=5
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PAPER ID: EE27B
Performance of 5G-NR under Semarang Channel Model
E D Wardihani1, H W Astuti1*, A Suharjono1, and S Pramono2 1 Department of Electrical Engineering, Politeknik Negeri Semarang, Prof. H. Soedharto, S.H. Rd., Semarang
50275, Indonesia 2 Department of Electrical Engineering, Universitas Negeri Sebelas Maret, Ir. Sutami No.36, Kentingan Rd.,
Jebres, Surakarta 57126, Indonesia [email protected]
Abstract. To support Twenty-Twenty Society and industrial revolution 4.0, 5G-NR becomes the solution for reliable communication. 5G-NR uses High Frequency which is sensitive towards nature and thereby need to understand its performance under real-field environment in Semarang, Indonesia. The aim of the research is to proof whether 5G can work in Semarang seen from outage probability and Bit Error Rate under three conditions for very heavy rainfall, moderate and without rainfall. This research method used channel model experiment using NYUSIM and MATLAB with CP-OFDM without channel coding with Rate in 1. Four environment parameters used as the data collection, namely temperature, humidity, rainfall rate and air pressure from Indonesia official department of Meteorological, Climatological and Geophysical Station (BMKG) of Semarang City and through sensors. The results obtain the information that the channel can work under the three conditions. It was also performed additional information about water vapour as the atmospheric attenuation due to absorption as the consideration of planning reliable communication in 22 GHz and 60 GHz. Besides, 5G-Complex BPSK generated better performance than BPSK One-path Rayleigh Fading.
Link : https://www.youtube.com/watch?v=CeDf9LiSC3Q&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=6
PAPER ID: EE28
Implementation of Real-time Edge Detection using Canny and Sobel Algorithms
N D Lynn1, A I Sourav2, and A J Santoso3 Magister Informatika, Universitas Atma Jaya Yogyakarta, Yogyakarta, Indonesia
1e-mail: [email protected]
Abstract. The process of performing tasks related to image processing requires the use of potential techniques such as edge detection. The technique can be used to accomplish tasks related to video and image manipulation. The process of edge detection is very virtual as it acts as the first phase of image analysis and understanding. In this paper, the edges of real-time images were detected for easy extraction of meaningful information from images. A prototype was implemented on OpenCV which is an in-built function cv2. () using python. Canny and Sobel edge detection algorithms are chosen to be used in this paper for comparison purposes to find out which method is better at edge detection. After using both algorithms to detect edges of real-time images, the result showed that the Canny algorithm produced thick edges compared to the Sobel algorithm. The canny algorithm follows the criteria of; Good detection, Good localization, and Minimal response, to output good edge detection results More so, canny uses a double threshold for edge revelation and applies the Gaussian filter which removes of any noise from an image, unlike Sobel which is not resistant to noise. The developed prototype for this study can detect edges of real-time objects without the intervention of any sensor input.
Keywords : Real-time, Edge detection, Canny and Sobel Algorithms, OpenCV, Image processing
Link : https://www.youtube.com/watch?v=cCw2E2DT9Io&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=7
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 82
PAPER ID: EE28B
Current – Voltage Analysis of High Voltage Plasma Discharge on Inverter Boost Kit 15 kV
R. Fadhillah1, M. Anwar1,a)*, Y. M. P. Perdana1, L. Anjarwati1, C. H.B. Apribowo1
1Department of Electrical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
a) Corresponding author: [email protected]
Abstract. Nowadays plasma technology can be used in various types of sectors in everyday life. The development of research on plasma technology provides many benefits in every sector, like industrial for material processing, environment for waste treatment, etc. This research aims to see the current-voltage impact on plasma discharge using Inverter Boost Kit 15 kV as the source of plasma, to find the energy needed to produce plasma and the distance of electrodes when the plasma occurs. Sensors of current and voltage were installed simultaneously on each side to measure the values during plasma discharges. Mathematical calculations were also performed to determine the electric charge and capacitance values of plasma. As the result based on the secondary current value, the discharge type of plasma is corona discharge, because the values reach the order of microampere. The capacitance value temperature value increase when batteries supply higher current to the electric motor, while voltage is decreasing. The capacitance value affected when the discharge gap change. The average discharge gap value is 5 mm, and when the discharge gap increase, the capacitance value will decrease.
Link : https://www.youtube.com/watch?v=8ktZ7Mpxfrw&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=8
PAPER ID: EE29
Recent Trends of Big Data in Precision Agriculture: A Review
A I Sourav*, A W R Emanuel Magister Informatika, Universitas Atma Jaya Yogyakarta,
Yogyakarta, Indonesia, 55281. *e-mail: [email protected]
Abstract. Recent developments in the field of technology have led to a renewed interest in the field of smart agriculture. The current smart agricultural system produces and depends on large amounts of data, yet, it is hard to process the vast amounts of data using traditional data analysis systems. Big Data technologies have attracted much attention among researchers due to their potential to handle large amounts of data. Thus, for numerous possibilities and powerful data processing capabilities, Big Data continues to become a hot topic of research in the agricultural field. This is indicated by the existing several pilot projects as well as various investigations that have been performed in the Big Data area. Therefore, this study attempts to review the recent trends of Big Data technology in the field of precision agriculture. The research focuses on the latest applications of Big Data technology in multi-disciplinary agri-area domains. A total of 25 recently published studies about Big Data in agri-areas were selected for the review process after proper screening. The selected papers were categorized according to their fields of study, purposes, methods applied, as well as their contributions in the agri-field. The findings indicated that Big Data application areas are expanding, and the impacts are significant in precision agriculture.
Link : https://www.youtube.com/watch?v=QXkcp7axmfw&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=24&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 83
PAPER ID: EE29B
Design and Analysis Performance Solar Power 15 kW by Maximizing Final Yield and Performance Ratio in Small-Medium Office
Chico Hermanu Brillianto Apribowo1*, Muhammad Nizam2, Subuh Pramono3, Hari Maghfiroh4, Krisna Hakim5
1,2,3,4,5Department of Electrical Engineering, Universitas Sebelas Maret, Surakarta Jl. Ir. Sutami No.36A, Pucang Sawit, Kec. Jebres. Kota Surakarta, Jawa Tengah 57126
1Corresponding author : [email protected] [email protected],[email protected]
[email protected],[email protected]
Abstract. The 15 kW solar power plant (PLTS) is a new certain in the application of small-medium solar energy usage, especially for the campus environment in Indonesia which can support and become proof of realization green campus program. The existence of 15 kW PLTS become an attention to do advanced analysis in order that production of the specific electric energy or final yield ( ) and performance ratio Y F (PR) from a PLTS can be monitored based on installation location. The value of and PR can be used as Y F reference to do identification, trouble operation analysis, and developing of a PLTS. The optimum value of
and PR on the 15 kW PLTS resulted by doing simulation from a simulator software, which the valueY F resulted from location and configuration of the system installation without watch shading factor. And then the simulation value compared with electric energy real production result on this 15 kW PLTS. The 15 kW PLTS divided be two lines, that are 5 kW and 10 kW line. From simulation result, showed that in the 5 kW line have value of optimum production is 5264.8 kWh with PR 83,1% and in the 10 kW line have value of optimum production is 7687.2 kWh with PR 83.12%. Real production in line 5 kW is 1326.9 kWh with difference 74.79% with simulation and in line 10 kW is 1643.3 kWh with difference 78.62% with simulation. The shading and existing disturbances resulted in a decrease in electrical energy production and performance in the line 5 kW is 0.91 hours/day with CF 2.79% and in the line 10 kW is 3.07 hours/day with CF Y F Y F 11.73%.
Link : https://www.youtube.com/watch?v=0-79n7qU4B0&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=25&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE30
Using Data Mining Techniques to Predict Students' Performance. A Review
N D Lynn* and A W R Emanuel Magister Informatika, Universitas Atma Jaya Yogyakarta, Indonesia
Abstract. Predicting students' performance is an essential activity towards the success of the world's education sector. However, the action continues to present itself as a challenging task due to the existing large data amounts in educational databases. On the other hand, some Institutions lack systems that are capable of analyzing and monitoring students' performance. This problem could be partially due to a lack of awareness about the importance of predicting students' performance. In addition to that, the existing studies on performance prediction methods are still inadequate in identifying and convincing educators with the most suitable method for predicting students' performance. This review explores the commonly used data mining techniques to predict students' performance in previous studies to find out the most suitable technology that can be trusted with predicting students' performance. The result of the study showed that the decision trees algorithm is the best classification technique that gives trusted and accurate results when it comes to student performance prediction. Predicting students' performance helps in monitoring the students' progress, both pass and fail, and therefore provides a gap for early interventions and decision making by educators. This
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opportunity dramatically helps in promoting the education sector by raising the academic standards of educational Institutions.
Link:https://www.youtube.com/watch?v=bmZH1KdWgKM&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=26&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE30B
An Optimum Design and Economic Analysis of Renewable PV-standalone Power Plant for Electric Vehicle Charging Station in
Indonesia
Chico Hermanu Brilianto Apribowo1*, Muhammad Nizam1 Miftahul Anwar1, Mohamad Nisman Falich1
1 Department of Electrical Engineering, Sebelas Maret University, 20 Ir. Sutami Street, Surakarta, Indonesia [email protected]
Abstract. Electric vehicles have recently been increasing in popularity and market demand which can be used as a key indicator for the future due to climate change and global warming so that CO2 emission reductions are needed. In addition to environmental factors which are the main motivation for the increase in electric vehicles, this type of transportation reduces dependence on fossil fuels and contributes a lot to energy independence. The increasing popularity of electric vehicles requires a country to build a charging station for the community in the future, including Indonesia. For that reason, this study was made to obtain the most optimal PV-standalone design as a charging station with the economic analysis. Semarang city is the location of choice because of the potential for strategic resources and is one of the cities with the highest number of vehicles. The result is that 23.2kW PV, 9kW converter, and 40kWh battery are the most optimal for charging stations in the city of Semarang with 10 electric cars every day, with a total daily load of 88kWh / day.
Link:https://www.youtube.com/watch?v=tqWtCRHS_Gc&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=27&t=0s&ab_channel=ICIMECE2020
PAPER ID: EE31
Anomaly detection using LSTM-autoencoder to predict coal pulverizer condition on coal- fired power plant
G M Luciana1.3*, M K Wisyaldin1, H Pariaman1,2 and M Hisjam3 1 Power Generation Engineering Department, PT. Pembangkitan Jawa Bali, Surabaya, Indonesia
2 Institut Teknologi PLN, Jakarta, Indonesia 3 Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, Indonesia [email protected]
Abstract. The coal pulverizing system is important in coal-fired power plant. The working condition of a coal pulverizing system may directly affect the safety and economy of power generation. Prognostics and health management is an effective approach to ensure the reliability of coal pulverizing systems. As the coal pulverizing system is a typical dynamic and nonlinear high-dimensional system, it is difficult to construct accurate mathematical models used for anomaly detection. In this paper, the Long-Short Term Memory Autoencoder model for anomaly detection of the coal pulverizing system on a coal-fired power plant is proposed. Autoencoder will improve the generalization ability of the model, and shorten the training time by reduce the data dimension. The anomaly is a base of a symptom-cause logic that build by the engineer that helps the plant’s operators to obtain the equipment condition. The results show that the proposed model can detect the anomaly successfully before the Sequent of Events occurs. The accuracy of the proposed model points out the reliability of the architecture which might lead the power plant to get an alert before a breakdown occurs. Therefore, management might have a chance to reduce maintenance costs while increasing revenue and service quality.
Link:https://www.youtube.com/watch?v=JU7HqcKpnd0&list=PLxk03d9FJa_akrQV3hEme0hEv_GeZ1v7K&index=28&t=0s&ab_channel=ICIMECE2020
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PJB CONNECT
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 86
PAPER ID: PJB09
Application of Lean Project Management Method in Environmental Drainage Development Case Study: X Area Bekasi City
Suhenra Maulana 1* , Fransisca Dini Ariyanti 2 1,2 Profesional Engineer Program, Faculty of Engineering, Bina Nusantara University, Jakarta,
Indonesia 11480 [email protected]
Abstract. Drainage systems are infrastructures for runoff water management and flooding in the settlements area. Many factors cause the drainage system not to function properly. This study was conducted on the implementation of an urban drainage system project in the X Area of Bekasi City using the Lean Project Management Method to analyse waste from resources, analyse risks and manage variations on costs, time, and human resources. The results of the analysis of risk responses that are important to note are the lack of supervision of the implementation of OHS in the field, lack of coordination and outreach to the residents, working hours of irregular (ineffective) use of the equipment, and unskilled labor. Based on estimated cost of in the construction project of the urban drainage system in the X Area of Bekasi City, there has been a change of actual cost (addendum contract) of 8.9% greater than the planning cost (initial contract). Based on the calculation, total savings with the CCPM method in the construction of urban drainage system in the X area of Bekasi City are Rp.2,894,136,099.
Keywords : lean project management, urban drainage, risk, construction Link:
https://www.youtube.com/watch?v=93GRjZPXqhw&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=2&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB10
Optimization Stacker Reclaimer Slewing Bearing Assessment in Mechanical Inspection Combining with Advance Technology of Vibration
Analysis
A B Sasongko1,a *, B Priyohutomo2,b* and D Sulistyo3,c*
1Application Engineering Department, Delivery Division, SKF Industrial Indonesia 2Condition Base Maintenance Department, Delivery Division, SKF Industrial Indonesia
3Online System Monitoring, Delivery Division, SKF Industrial Indonesia a) Correspondence author: [email protected], b) [email protected]
Abstract. SKF Mechanical Service, Engineering Knowledge Company was entrusted to perform Life Assessment Of Slewing Bearing At Stacker Reclaimer for further Improvements Plan at one Power Plant Industry, suggest on best methodology and technique to be implemented in maintaining the reliability of slew bearing at the critical equipment in better maintenance functions, reliability and cost-effectiveness. SKF were awarded the work order for the assessment and recommend improvements plan with respect to the following scope of work. The objective of the assessment is to identify current condition of Slew Bearing installed at the critical equipment of Stacker Reclaimer and a way forward to prevent it from the catastrophic failure for another 15 years operation (expectation). The result of the mechanical service assessment is showing the evidence wear phenomena occurrence, as one of mechanical equipment/asset failure mode compared to suitable value of permissible wear or bearing height reduction, bolts, nut & washer integrity compared to OEM specification, gear drives backlash according to standardization and bearing grease contaminant observation in relation to Fe, PQ and Cr wear percentage, vibration pattern & level for conformance checking and recommendation maintenance procedure for improving bearing life.
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Link:
https://www.youtube.com/watch?v=PVq6Pckb_e0&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=3&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB11
Redesign Integrated Control System GTG and HRSG to Reduce Loss of Electrical Production at Combined Cycle Power Plant Muara Karang
S Nurkholiq1, R K Putra1, A Khumaidi1, F Fatimah1, E Kusuma1
1 PT Pembangkitan Jawa Bali UP Muara Karang, Jl. Pluit Karang Ayu Barat 01 Penjaringan Jakarta Utara, 14450, Indonesia
Abstract. Combined Cycle Power Plant (CCPP) Block 1 Muara Karang control system had performance degradation since 2016-2017. Performance degradation comes from the complexity of the design architectures that are serially configured which can cause loss of electrical production. The Re-Design Method is able to simplify the architecture design by replacing hardware devices into modbus-based TCP-IP software that is compatible with the communication technology between GTG and HRSG and has a redundant path that can increase reliability. Based on the Muara Karang PLTGU Block 1 disturbance report data, redesign is able to increase reliability and better financial aspect. It shows that before the redesign there were 9 disruptions, while after the redesign there were no failures and Total saving opportunity loss of electrical production is Rp 10,792,782,094.30. This value is obtained from the unit repair time from operation failure and electricity sales price. On the corporate side, Re-Design can be applied to other generating units that have differences in technology based on open protocol. Link:
https://www.youtube.com/watch?v=m0ByW8OP37o&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=4&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB15
Inlet Guide Vane Tracking Effectiveness at Various Compressor Efficiency of Gas Turbine
O Purba1, F Zhultriza1* 1 Mechanical Maintenance Division, PT. Pembangkitan Jawa Bali UP Muara Karang, North Jakarta,
Indonesia [email protected]
Abstract. The baseload operating patterns in Java-Bali’s system are imposed on coal-fired power plants, the combined cycle power plant (CCPP) is used as a spinning reserve so that the CCPP operates with a small load factor (partial load) to support system reliability. This operation results in a high plant heat rate for the CCPP since it operates more often at minimum loads. To improve the heat rate of CCPP at partial load, inlet guide vane tracking (IGVT) is performed. IGVT alters the opening position of inlet guide vane (IGV) in the partial load operation. The effect of IGVT application in CCPP is analysed with several operating parameters, such as fuel usage, turbine exhaust temperature (TET), the total load generated by the CCPP, and the total of net plant heat rate (NPHR) after IGVT application. The variation on IGV leads TET to increase. A higher TET affects the heat recovery steam generator (HRSG) and causes the load generated by the steam turbine to become larger compared to the load before performing IGVT application. The results show that the combined cycle heat rate drops to 24 kCal/kWh and thus improving the efficiency of the CCPP, up to 1.5% in partial load operation model. Link :
https://www.youtube.com/watch?v=kItJnwkmYVg&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=5&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 88
PAPER ID: PJB16
Gas Turbine Hidden Capacity Recovery by Inlet Air Filter Variation Method to Produce Clean and Efficient Energy
O. Purba1, F. Zhultriza1* 1 Mechanical Maintenance Division, PT. Pembangkitan Jawa Bali UP Muara Karang, North Jakarta,
Indonesia [email protected]
Abstract. In the F-series gas turbine with the capacity of 250MW, as time goes by, the power produced will drop below its initial capacity, this refers as a hidden capacity. Hidden capacity occurs due to several causes, one of them is the decreased of compressor efficiency. This happens because the Inlet Air Filter (IAF) is unable to filter particles more than 10 µm, as a result particles infiltrate compressor which can prompt scaling on compressor blade. This paper will discuss an effort to recover the hidden capacity by varying air filtration system in the IAF. The variation of IAF use High Efficiency Particulate Air (HEPA) filter and combination of pre-filters, consist of bag filter and coalescer, which can filtrate particles less than 10 µm and 1 µm. By implement this modification, compressor efficiency remains at 90.1%, compared to existing IAF, compressor efficiency drop to 85% and continuously. Because the compressor efficiency is maintained, power plant efficiency can also be maintained to avoid heat rate drop by 40 kCal/kWh. As a summary, after modifying the IAF, the F-Series Gas Turbine can produce more reliable power capacity, thus, the gas turbine can produce maximum load efficiently and hidden capacity can be recovered Link:
https://www.youtube.com/watch?v=CIwqcvLcWeo&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=6&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB17
Emission Dispersion Modelling using AERMOD on GT 1.3 PLTGU Muara Karang in Evaluate Combustor Upgrade Effect
F Leilan1, T Revina1, D S Hutajulu1* 1PT Pembangkitan Jawa Bali UP Muara Karang, Jl. Pluit Karang Ayu Barat 01 Penjaringan Jakarta Utara,
14450, Indonesia [email protected]
Abstract. Muara Karang power plant dominated by Gas Turbine Power Plant. One of those there is Gas Turbine 1.3 has been upgraded, thus make load output become increased. This study aims to see the emission dispersion generated from combustor before and after being upgraded. The emission data is obtained from combustion modelling on combustor GT 1.3 pre and post extender using CFD method. Then, the data will be used for emission dispersion modelling using AERMOD. The emission dispersion modelling uses two condition. First is the initial state based on environment assessment document in 2010 and second is in current environment state. The modelling shows that after the combustor upgraded, the NOx emission increase by 15%, CO emission decrease by 37%. Emission dispersion modelling result shows that there is a change in the area that has the highest concentration. In the initial environment state, area with highest concentration is on the west side of the power plant with NOx concentration is 35.46303 ug/m3, And CO concentration is 1.3362 ug/m3. In the current environment state, the area is on the east side of the power plant area with highest concentration is NOx concentration is 61.47481ug/m3 And CO concentration is 2.3163 ug/m3 Link:
https://www.youtube.com/watch?v=E4rMjKj47LA&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=7&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 89
PAPER ID: PJB18
Scrap Metal Reduction as the Effect Of Combustor Upgrade in GTG 1.3 PLTGU Muara Karang
F Leilan 1 , T Revina 1 , I Dimassetya 1 , A Rahmanissa 1* 1 PT Pembangkitan Jawa Bali UP Muara Karang, Jl. Pluit Karang Ayu Barat 01
Penjaringan Jakarta Utara, 14450, Indonesia [email protected]
Abstract. Metal as one of the most common used materials in industry, needs a proper management for it will not contaminate the land. Metal waste, or also called scrap metals, is disposed in a scrap yard. To prevent the accumulation of scrap metals in the scrap yard area, reducing the generation of it is important. Especially when the auction procedure for scrap metals takes a long time. PLTGU Muara Karang had upgraded GTG 1.3 to Advanced Extendor Combustion System in October 2016 to improve its operational excellence. The impacts of upgrading gas turbine to Advanced Extendor Combustion System, are not only for better efficiency in performance, but also extending the maintenance interval up to 32000 hours. By extending the maintenance interval, combustion inspection, which is usually performed every 8000 hours, can be dismissed. The total maintenance duration needed also reduced from 120 days to 66 days on 8 years period. This leads to reducing metal waste generated during maintenance. By calculating the spare parts that required to be replaced in one combustion inspection, the metal waste reduction potential is 2.26 ton. For 8 years period, the combustor upgrade help to reduce metal waste generation about 75.02%. Link:
https://www.youtube.com/watch?v=Yu6GoghkMnc&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=8&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB19
Natural Frequency Evaluation of Last stage Steam Turbine Blade Power Plant using Finite Element Method
Acep Moi Kokong1*, Teguh Widjayanto2, Hery Setiawan3, Akbar Rizky Laksana4 and Imam Djunaedi5 1Engineering Departement, PT. Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11, Ketintang, Kec.
Surabaya, Indonesia 60231
2 Engineering Departement, PT. Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11, Ketintang, Kec. Surabaya, Indonesia 60231
3Researcher, Lightweight Structure Lab. Faculty of Mechanical and Aerospace Engineering, ITB, Jl. Ganesha 10, Bandung, Indonesia 40116
4 Engineering, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar, Bojongsoang, Bandung, Indonesia 40288
5 Senior Consultant, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar, Bojongsoang, Bandung, Indonesia 40288
email: *[email protected]
Abstract. The possibility of a power plant trip can disrupt the stability of the network frequency settings. Load shedding is done at the frequency level. In case of frequency under nominal setting, the load shedding or trip generator decision must pay attention to the generator equipment factor, especially the last stage turbine blade and lacing wire. In this study analysis modal using ANSYS 2019 R2 was carried out to determine natural frequency of the last stage blade LP (low pressure) Steam Turbine Tanjung Awar Awar Indonesia power plant when operating at low frequencies, which is below the nominal operating frequency of 50 HZ or at a rotation of 3000 rpm. The finite element method analysis is applied to the 1 blade and 5 blade systems. The result for a natural frequency of 1 blade system occurs at 2639.6, 2783 and 2915 rpm. For the 5 blades system, natural frequency occurs at 2648 and 2563 rpm, so it can be concluded that the setting under frequency is not in the range of natural frequency last stage LP turbine blade, and lacing wire damage is not triggered by the natural frequency steam turbine blade.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 90
Link:
https://www.youtube.com/watch?v=QdLNmMkEYn8&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=9&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB20
Flutter Analysis of last stage Steam Turbine Power Plant blade through Transient Blade Row simulation
Akbar Rizky L 1 , Acep Moi K 2,3,* , Agus Sigit P 3 , Teguh Widjajanto4 , HerySetiawan 5 and Imam Djunaedi6
1 Engineering, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar, Bojongsoang, Bandung, Indonesia 40288
2 Engineering Department, PT.Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11,Ketintang, Kec. Surabaya, Indonesia 60231
3 Mechanial Engineering Department, Faculty of Industrial and System Engineering,ITS, Keputih, Kec. Sukolilo, Surabaya, Indonesia 60111
4 Engineering Department, PT.Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11,Ketintang, Kec. Surabaya, Indonesia 60231
5 Researcher, Lightweight Structure Lab. Faculty of Mechanical and AerospaceEngineering, ITB, Jl. Ganesha 10, Bandung, Indonesia 40116
6 Senior Consultant, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar,Bojongsoang, Bandung, Indonesia 40288
email: [email protected]
Abstract. Flutter phenomena becomes significant in response with turbomachinery design trends that prioritize efficiency. Especially in later stages of steam turbines, the slender profile of the blade becomes more prone to unstable dynamic aeroelasticity. Predicting the potential of flutter on a turbine blade can be done by constructing aeroelastic stability curve with evaluation of aerodynamic damping value under different rotor blade position, relative to the stator blade (inter blade phase angle). In this study, combination of steady Computational Fluid Dynamics (CFD), structural Finite Element Analysis (FEA) and transient blade row CFD was carried out using ANSYS 2019 R2 with the end goal of constructing aeroelastic stability curve and analysing the flutter risk of a 350 MW last stage steam turbine blade. At inter blade phase angle position of -180 o , -70 o , 0 o , 77 o and 180 o , the system are exhibits positive aerodynamic damping values which indicates low to none flutter potential. Link:
https://www.youtube.com/watch?v=VWRcJOojW-o&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=10&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB21
Numerical Investigation of Heat and Fluid Flow Characteristics through Steam Coil Air Preheater Installed in 100 MWe Utillity Boiler
Eko Ariyanto1,a*, Wawan Aries Widodo2,b* 1PT Pembangkitan Jawa Bali/UBANG, Jakarta, Indonesia
2Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Surabaya, Indonesia [email protected] , [email protected]
Abstract. This paper study the flow characteristic through a set of tube bank used as air preheater in a 100 MWe utility boiler. The study using numerical simulation commercial Computational Fluid Dynamic (CFD) software. A 3D model uses to analyze the flow characteristics with 3 load variations. The model using a steady-state flow assumption. The Steam Coil Air Preheater modeled as a porous medium (PM) to represent its effect on the airflow through it. Porous Medium model can avoid a time consuming mess generation and simulation. This paper using an empirical equation to define inertial resistance coefficient (C2). The model using Heat Exchanger Model, Energy Model, and Realizable k -Epsilon for turbulence viscous model. 100%,
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 91
75%, and 50% load variation simulated with the model. The simulation result in both quantitative and qualitative data. The velocity and pressure distribution affected by the load variation, geometrical shape change, and tube bank set. Some secondary flow observed due to geometrical change along with the flow. The heat transfer characteristics observed with temperature distribution show that it affected by the flow characteristic. Link:
https://www.youtube.com/watch?v=thVcXQV05fs&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=11&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB22
Emission Dispersion Modelling of Gresik Power Plant using Gaussian Analysis to Evaluate Environmental Impacts in Receptor Point
Diken Yus Damara1.a* and Muhammad Dede Dermawan2.b 1Environmental Department, PT Pembangkitan Jawa Bali UP Gresik, Indonesia
2Environmental Department, PT Pembangkitan Jawa Bali Head Office, Indonesia [email protected]
Abstract. Air pollution is one of the impacts that must be concerned by Gresik Power Plant. The presence or absence of pollution can be seen in the ambient air quality around the plant location which is routinely monitored every six months. However, the monitoring data is not representative because there is no daily data conducted. Therefore, emission dispersion modeling can be carried out to obtain ambient air conditions around the plant site. In this research, the modeling is carried out using Gaussian Analysis for the HRSG chimney 3.1 and it can be seen that the area around the power plant and Pulopancikan village are significantly affected. This is indicated by the presence of a red zone in the results of the modeling and the concentration of NO2 pollutants can reach 892.65 µg/m3 exceeding the government standard (150 µg/m3). However, the validation of the model shows significant gap due to some circumstances such as meteorology condition, vehicles pollution, and human activities. In consequence, such a modeling can be developed further. For instance, the study needs to forecast emission dispersion of all active chimneys on the site in order to capture environmental condition and more concern to meteorology condition and other pollution sources.
Keywords : air pollution, dispersion modelling, NO2 pollutant. Link:
https://www.youtube.com/watch?v=XigbsAT9PtE&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=12&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB24
Indramayu 3 x 330 MW CFPP Coal Yard Management Optimization with K-Means Clustering
Syarief Andrian* Engineering Department, PT Pembangkitan Jawa-Bali UBJ O&M Indramayu 3 x 330 MW CFPP, West Java,
Indonesia Corresponding email: [email protected]
Abstract. Coal yard management is part of the generation management to ensure that coal supply to the unit can continue to be met. The coal entering the boiler is regulated considering various coal characteristics that differ between suppliers with coal mixing strategies, to ensure the generating unit works following the performance target. One of the generating units operated by PT Pembangkit Jawa Bali (PJB) is the Indramayu 3 x 330 MW coal-fired power plant (CFPP). Using 1507 data shipments of PLTU Indramayu from January 2017 to June 2020, a more straightforward coal yard management method can be analyzed. Data were analyzed using k-means clustering by using important parameters from coal property data. Important
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parameters used are Gross Caloric Value (GCV), Hardgrove Grindability Index (HGI), theoretical air for combustion, and slagging index. From the modeling with k-means clustering, the six optimal clusters are obtained. These six clusters are much simpler than before, managed in 16 clusters in the coal yard. Simplified coal yard management will have a significant impact on operational efficiency. Link:
https://www.youtube.com/watch?v=uzBh9EA8aCo&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=13&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB26
Failure Analysis in Lacing Wire Of Last Stage Low Pressure Steam Turbine Blade
Acep Moi K1,6,*, Hery S2, Miftahul J3 Akbar R L4, Imam D5 and Suwarno6 1Engineering Department, PT.Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11, Ketintang, Surabaya,
Indonesia 60231 2Researcher, Lightweight Structure Lab. Faculty of Mechanical and Aerospace Engineering, ITB, Jl. Ganesha
10, Bandung, Indonesia 40116 3 Engineering Department, PT.Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11, Ketintang, Surabaya,
Indonesia 60231 4 Engineering, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar, Bojongsoang, Bandung,
Indonesia 40288 5Senior Consultant, Java Pratama Energi, Kws Industri De Primaterra C2/6, Tegalluar, Bojongsoang,
Bandung, Indonesia 40288 6 Department of Mechanical Engineering, Faculty of Industrial and System Engineering, ITS, Keputih,
Sukolilo, Surabaya, Indonesia 60111 email: *[email protected]
Abstract. The present paper studies a root cause of failure analysis of lacing wire used in the last stage blade of low pressure (LP) steam turbine. The lacing wire is made of Stainless Steel Grade 17-4 PH with a diameter of 1.4 mm. The failure occurred after the unit had been operated for 4 years. The fault occurred several times during the operation periods. The failure location is near the tack weld which has functions as a stopper between the lacing wire and the stub. Macro fractography, light optical microscope and scanning electron microscope were used to examine the fracture surface and microstructure closed to the failures. The cyclic stress were evaluate using harmonic analysis simulation using FEA (finite element analysis) Ansys 2019 R2.The beachmark that is indication of fatigue failure was clearly visible. It is concluded that the failure mechanism is fatigue failure with crack initiation. Improper maintenance procedures especially welding procedures trigger an initial crack and then the initial crack gets a concentrated cyclic load causing lacing wire broken. Link:
https://www.youtube.com/watch?v=X0zLhGvM7fk&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=14&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 93
PAPER ID: PJB27
Decarbonizing Electricity in Indonesia: Opportunity in the Implementation of Rooftop Solar PV
Pradityo Sukarso, Adimas* *Partnership and Business Development, PT PJB Investasi, Jakarta 12870, Indonesia;
Abstract - Efforts to decarbonize the electricity generation system to mitigate the environmental impacts including climate change are done around the world. The world is in an act of transfer from fossil fuel to new and renewable energy. Indonesia is trying to achieve future energy mix target through penetration in technology and policies emphasize. Indonesia through its state-owned company, PT Pembangkitan Jawa Bali (PT PJB) has a huge potential for new and renewable energy, particularly rooftop solar photovoltaic. Indonesia solar PV capacity installation was only 0.04% on 2017 whilst theoretical solar potential production is around 207.9 GW (4.8 kWh/m2/day). This article results that utilization rooftop asset from PT PJB can produce 8.09 GWh/year of electricity and reduce carbon dioxide which parameter greenhouse gas emission from electricity around 8.81 tonCO2eq in accordance with comparisons from coal power plant.
Keywords : Indonesia, electricity, policy, rooftop solar PV, greenhouse gas Link:
https://www.youtube.com/watch?v=DjAq9VAaQjk&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=15&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB28
Study of Non-condensable Gas, Fouling, and Plugging Effects on Condenser Performance Using NTU-Effectiveness Analytic Method and
2D Numeric Simulation
Hilman Aziz Tamimi1,3*, Prabowo2,4* 1 PT Pembangkitan Jawa Bali Services, Sidoarjo, Indonesia
2 Mechanical Engineering Department, Sepuluh Nopember Institute of Technology, Surabaya, Indonesia 3 [email protected], 4 [email protected]
Abstract. This paper was objected to determine the effect and how sensitive the variation of the percentage of non-condensable gas, fouling thickness and the amount of plugging to the performance of the condenser and the steam turbine power output. This study was conducted using the NTU-effectiveness analytical method, and specifically for the study of the effects of non-condensable gas combined with numerical simulations to obtain the value of the condensation heat transfer coefficient as an input for analytical calculations. The study was conducted with a variation of the percentage of non-condensable gas 0% (new and clean), 2%, 5%, and 8%, with fouling thickness 0 µm, 2 µm, 5 µm, and 8 µm, and the amount of plugging 0%, 5%, 10%, and 15%. 2D numerical simulation was used to determine the impact of non-condensable gas percentage variation on the value of the condensation heat transfer coefficient on the outside of the tube, both qualitatively and quantitatively along the circumference of the condenser tube. The results of this study were, the greater the percentage of non-condensable gas, the thicker the fouling layer, and the more amount of plugging, would have an impact on decreasing the net turbine work. Consequently for new and clean conditions, the percentage of non-condensable gas were 2%, 5%, 8%, fouling thickness 2 um, 5 um, 8 um, and the amount of plugging were 5%, 10%, 15%, resulting in net turbine work to 202.55 MW, 192.08 MW, 189.08 MW, 185.85 MW (non-condensable gas), 200.05 MW, 196.01 MW, 192.08 MW (fouling), 195.2 MW, 185.27 MW, and 174.77 MW (plugging). A financial loss simulation was also carried out due to the decline in electricity sales affected by the decreasing of power plant’s net turbine work.
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Link :
https://www.youtube.com/watch?v=_Gyai-8xKzA&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=16&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB30
Root Cause Analysis of Fires in Coal Power Plants using RFMEA Methods
Muchamad Jati Nugroho*, Egga Bahartyan, Rifky Raymond, Budi Hidayat and M. Isa Irawan [email protected]
Abstract. Fire is one of the highest risks in using coal as fuel for electricity generation. Coal fires often occur in the area of coal handling facilities and are caused by equipment damage, accumulation of coal dust that has not been cleaned and burning coal itself. This study aims to find out how the application of the RFMEA (Risk Failure Mode Effect Analysis) method for the analysis of the root causes of fires in the Pacitan Coal Fired Power Plant case study uses a quantitative approach to find the root causes of prevention by respondents. from PT. PJB UBJOM Pacitan at manager and supervisor level. In implementing RFMEA, the severity, events, and detection are needed to produce risk level figures which will be used as a step in determining the priorities of the company's mitigation management. Based on this study, 15 types of equipment failures were found at the operational coal handling facility at PT PJB UBJOM PACITAN. By using the RFMEA method, 1 type of critical failure can be found that requires more attention from management to mitigate the risk immediately, namely dust on coal both from barges and coal yards with risk value 32.05.
Link :
https://www.youtube.com/watch?v=D5HdDN92Yp0&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=17&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB32
PT PJB UPHT Calibration Laboratory Business Strategy with Business Model Canvas Method
MI Ardiansyah1,a and A W Ariyanto2,b 1Eastern Regional Maintenance Service Unit, PT Pembangkitan Jawa Bali, Jl. Harun Thohir, Gresik, East
Java, Indonesia 60231 2Technical Support Department, PT Pembangkitan Jawa Bali, PT Pembangkitan Jawa Bali, Jl. Ketintang
Baru No.11, Surabaya, East Java, Indonesia 60231 [email protected], [email protected]
Abstract. Industry in Indonesia is facing the Asean Economic Community (AEC), which came on January 1, 2016. AEC have 3 pillars, namely: metrology, standardization, and conformity assessment. These 3 pillars facilitate the flow of products to meet quality standards for ASEAN market. The product standardization process requires calibration and test laboratories spread throughout Indonesia. PT PJB through its maintenance unit, namely UPHT and UPHB, has tried to establish a calibration laboratory to meet the quality standard requirements. Firstly, the calibration laboratory serve the internal needs of PT PJB, but seeing market opportunities, it can become a profit center by reaching calibration market. So that the PT PJB UPHT Calibration Laboratory can become a new line of business, the calibration laboratory business is developed to produce a value proposition as a profit center for PT PJB in calibration services. Business development of calibration laboratory is carried out using the Business Model Canvas (BMC). Through SWOT analysis and Blue Ocean Strategy, 2 Alternative BMC will be developed. Using Minaut decision making analysis, business models selected is alternative BMC 1 to be implemented in first two years and alternative BMC 2 to be implemented in the next years.
Keywords : calibration laboratory, calibration services, business model canvas, business strategy
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 95
Link :
https://www.youtube.com/watch?v=3R8R-PzcH6M&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=18&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB33
Optimization of Sedimentation System through AHP and AHP-TOPSIS Methods in Water Treatment Steam PowerPlant
Y E Feriyanto1,3*, S P Zulfikar1,4* and Dedy2,5* 1 PT Pembangkitan Jawa-Bali Services, Bypass Juanda 17, Sidoarjo, 61254, Indonesia
2 PT Pembangkitan Jawa-Bali, Ketintang Baru 11, Surabaya, 60231, Indonesia 3 [email protected], 4 [email protected],5 [email protected]
Abstract. Steam power plants consist of systems such as Water Treatment Plant (WTP), boiler, turbine-generator, and balance of plant. WTP system consists of sedimentation, desalination, and demineralization. The coagulation mechanism triggered by the mass grave of suspended solids during the sedimentation process, and if it is less than optimal, so will be modified by injecting coagulant-flocculant chemicals. The most common problem is the high dose chemicals used in the rain and tidal sea conditions. However, the output water quality that produced still does not reach the standard requirements. This condition would affect the high costs of water treatment operations. It also would have an impact on the poor feed the next system. The jar-testing technique is research using process and operational variables that theoretically influence the efficiency of the coagulant-flocculant such as doses, setting times, and rotates agitator. Evaluation of experiments using water quality criteria and data results processed by AHP and AHP-TOPSIS. The sensitivities of both methods are analyzed thus compared to select a consistent alternative that obtained sequence the first alternative for D60W30P80 and the second alternative for D40W20P80. The optimal sedimentation process could potentially save 40-60% of the water treatment operational cost while operating conditions achieved.
Link :
https://www.youtube.com/watch?v=QkX_pDL9ynE&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=19&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB36
Development of Reliability based Decision Making for Optimum Operation and Maintenance Strategy in Coal Fired Power Plant
M F Akhsani1,a* and M N Yuniarto2,b* 1PT Pembangkitan Jawa Bali, Ketintang Baru 11 Street, Surabaya, 60231, Indonesia
2Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Kampus Keputih – Sukolilo, Surabaya-60111, East Java, Indonesia
a [email protected] , b [email protected]
Abstract. Operation and Maintenance (O&M) held a significant factor in the power generation business. Despite the costs only about 15% of all life cycle costs, this figure may fluctuate to 20% due to spare part costs, equipment's economic lifetime, and personnel cost. This paper describes a reliability-based Decision Support System (DSS) development to determine an optimum O&M strategy for coal-fired power plants. The methodology was developed from System Dynamics modeling, with the objective function to maximize Net Present Value (NPV) and maintain availability exceeding its goal. DSS allows users to study the power plant cost characteristics within their life cycle, including its sensitivity to NPV. The model was tested to a 600 MW coal-fired power plant in Indonesia. Mean Absolute Percentage Error (MAPE) applied as model acceptance criteria. From this study, coal price was the most sensitive variable to NPV (62.36%), followed by dispatcher demand (53.31%), and overhaul duration (1.5%). From 4 simulated scenarios, it was concluded
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that O&M outsourcing as asset operator authority was a proper choice that provides the highest NPV. Nevertheless, some risks related to employee competence and bureaucratic obstacles should be controlled.
Link :
https://www.youtube.com/watch?v=tWcLkYAWT2I&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=20&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB37
Numerical Study to Improve Fluid Flow Patterns in HRSG by using A Turning Vane and A Combination of using A Turning Vane with
Transition Zone Geometry Modification
Eri Andika Yuwono1,a* and Wawan Aries Widodo2,b*
1Pembangkitan Jawa Bali Unit Pembangkitan Muara Karang Company (PT. PJB UP Muara Karang), Jakarta, Indonesia
2Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Kampus Keputih-Sukolilo, Surabaya-60111, East Java, Indonesia
[email protected], [email protected]
Abstract. Since operated from 1995 until 2018, the total steam production of HRSG 1.1 has decreased by 6.34 % and exhaust gas outlet temperature increased by 40.86 oC. From previous studies on HRSG it can be assumed that flue gas flows at HRSG 1.1 has nonuniform velocity and temperature distribution. This research is carried out by modeling and simulating HRSG as porous media using Computational Fluid Dynamic (CFD) software. The simulation will be carried out on a 3D model with the steady-state condition, use energy model, a heat exchanger (HE) model, and standard k-ɛ as a turbulence viscous model. Energy absorption in HE will be modeled by an ungroup macro model with fixed inlet temperature and NTU model. Simulations in HRSG are implemented at a corner angle of 6 degrees (original), adding a turning vane on the inlet duct and combination adding a turning vane on inlet duct with 12 degrees corner angle on transition zone. Model validation was accomplished comparing simulation data to power plant data. The result shows adding a corner angle in the transition zone and installing a turning vane in the curve bend minimizes secondary flow in the transition zone. Heat absorption increases 0.008% and exhaust gas outlet temperature decrease 0.04% compared to the existing model.
Link :
https://www.youtube.com/watch?v=xx2rf3R7Cig&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=21&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB41
Increasing the Number of Inductive Stove Users in Indonesia using Cognitive Intervention Model to Support Industry 4.0 Implementation at
PT PLN (Persero)
Aditya S Ramadhan1 and Ema A Ulfa2
1PT PLN (Persero) Unit Induk Transmisi Jawa Bagian Barat, Jakarta 2 PT Indonesia Power Head Office, Jakarta
Abstract. Indonesian government electricity utility company, PT PLN (Persero) has applied the application towards Industry 4.0. One of its application is promoting inductive stove among households, in terms of modernizing Indonesian people’s life behaviour. Inductive stove users in Indonesia is still low, because of its bad quality of promotion. So, the authors will try to provide suggestions to improve the quality of inductive stove promotion using cognitive intervention methods. This method is expected to increase inductive stove users in the households sector by changing the mindset of the society by cognitive intervention method and supports PT PLN (Persero) to apply industry 4.0 in Indonesia especially for the households sector.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 97
Link : https://www.youtube.com/watch?v=7mxwop05XdI&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=22&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB42
Re-design and Upgrade Bearing Materials Traveling Drum Screen in Muara Karang Combined Cycle Power Plant Block 1
A Kurniawan1*, E Kusuma2 1Muara Karang Power Plant, PT. PembangkitanJawa Bali, Indonesia 2Muara Karang Power Plant, PT. PembangkitanJawa Bali, Indonesia
Email: [email protected]
Abstract. The cooling system in the Steam Turbine Generator (STG # 1.0) is adjusted to the cleanliness conditions of seawater, using Traveling Drum Screen (TDS) as a filter. In January 2019, Traveling Drum Screen (TDS) suffered bearing and fuse bolt damage until STG # 1.0 was stopped with a potential loss of 28.59 billion rupiahs. The position of the TDS bearing below the surface of the sea makes monitoring difficult. To overcome the problems in TDS bearings, an innovation was made in the form of redesign & upgrading bearing materials. The replacement of TDS bearing material from Pertinax to Pokhout Wood (Lignum vitae) is very appropriate because the material is capable of self-lubrication in seawater and has more strength. In addition to upgrading the material, a redesign of the bearing is also carried out, which is adding a grease groove so that the optimal lubrication process and use finite analysis software to find out safety factors design. By using simulation software, the results show the bearing design with Pokhout material has a safety factor of 1.28 and Pertinax has a safety factor of 0.85. This shows that the re-design and upgrade of materials that have been carried out can increase the safety factor bearing and can reduce the possibility of failure of the bearing.
Link :
https://www.youtube.com/watch?v=34W4J3o1bV8&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=23&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB44
Study of Debris Filter Valve Opening Angle Adjustment for NPHR Improvement in Kaltim Teluk CFPP
Andik Santoso1, Agus Priyono2* and Khoirul Huda3 1 Technical Support Departement, PT Pembangkitan Jawa Bali, Jl. Ketintang Baru No.11, Surabaya, East
Java, Indonesia 60231 2 Technical Departement UPHT, PT Pembangkitan Jawa Bali, Jl. Harun Thohir, Gresik, East Java, Indonesia
61112
3 Engineering Departement Kaltim Teluk CFPP, PT Pembangkitan Jawa Bali, Jl. PLTU NO 1, Teluk Waru, Kawasan Industri Kariangau KM13, Balikpapan, East Kalimantan, Indonesia 76134
email: [email protected]
Abstract. Many things can affect the Net Plant Heat Rate (NPHR) value, including operating parameters, fuel and equipment’s condition. The performance target of NPHR for Kaltim Teluk CFB CFPP based on specifications is 3430 kCal / kWh. Operational data shows that the NPHR of Unit #1 and Unit #2 is higher then the performance target. Analysis of operation and maintenance data showed that the low average net load and high condenser back pressure are the dominant problems that caused heatloss. One way to minimize heatloss and improve NPHR performance can be done by maximizing debris filter cleaning process through adjusting valve opening angle which can reduce differential pressure and finally reduce the backpressure at the condenser. With the flow simulation inside the debris filter, in order to achieve maximum flow rate with
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 98
acceptable erosion rate, the optimum cleaning reached at valve opening angle 75o-60o and with this cleaning method, heat loss can be reduced 14.96 kCal/kWh and 50.09 kCal/kWh for unit #1 and unit #2 respectively.
Link :
https://www.youtube.com/watch?v=QarKktyagYE&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=24&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB45
Implementing Risk-Based Maintenance Strategies for Distributed Control System as Power Plant Asset Management
D T Yulianto1*, R M Isman1, S N Ihsan1 and H G Susanto1 1Pembangkitan Jawa Bali UP Muara Tawar, PLTGU Muara Tawar 1 street, West Java, Indonesia
email: [email protected]
Abstract. The electricity generated from the power plant is subject to several requirements for active power, voltage, and frequency according to the grid system, so the machine must be controlled to achieve requirement by a power plant control system knows as Distributed Control System (DCS). DCS system in block 1 Muara Tawar power plant using Procontrol P-13 for gas turbine and Procontrol P-14 to control steam turbine. These systems had operated since 1997 and had been nearly operating for 23 years until now, and several failures tend to increase from time to time. The failures of the DCS and the lack of control cards will result in the loss of production. DCS system assets must handle properly to maintain the overall reliability of the power plant system. A method and strategy to maintain DCS must be carried out and ensure reliability and risk always under controlled conditions. Implementing Risk-based maintenance by carrying out quantitative calculations through the reliability approach and the level of the consequence of failure to calculate equipment risk is one of the methods of the DCS system. The result of Risk-based maintenance method shows the highest risk on risk map of the DCS system was in cubicle 14CBA02, 14CBA03 with a high-risk level and gas turbine and HRSG cubicle in medium-high level. The interval preventive maintenance time calculated by reliability within a year showed that cubicles 14CBA02 and 14CBA03 suggested to be maintenance every 29 days to reduce possibilities to failure.
Link :
https://www.youtube.com/watch?v=E4YcVDgfyT4&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=25&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB46
Exergy and Energy Analysis of CFPP
Rudi Jauhar Musyafa 1,2 1.PT Pembangkitan Jawa Bali, Ketintang Baru 11, Surabaya East Java Indonesia
2PT KPJB, PLTU Tanjung Jati B Unit 3&4, Tubanan-Kembangan, Jepara, Central Java Indonesia [email protected]
Abstract. Energy and exergy analysis of Pulverized Coal Fired Subcritical Power Plant (CFPP) performed to assess power plant performance and identify major losses both energy and exergy term. It’s found that, based on energy analysis, major losses occur in condenser, moisture in coal and steam turbine. While exergy analysis result that most exergy losses and destruction was in boiler and feedwater heater. Energy efficiency of boiler on 250MW, 300MW and 380MW was 68.56%, 69.56% and 72.42% respectively while exergetic efficiency was 52.81%, 56.33% and 57.39% respectively.
Link :
https://www.youtube.com/watch?v=kKMDIz7gnKA&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=26&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 99
PAPER ID: PJB49
Cavitation Draft Tube Analysis of Francis Turbine Loads Variations: A Case Study from Cirata Hydropower Plant
R T Sibuea1.a, H Mirmanto2.b 1 Pembangkitan Jawa Bali, West Java 40558, Indonesia
2 Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember, Kampus Keputih-Sukolilo, Surabaya 60111, East Java, Indonesia
a [email protected] b [email protected]
Abstract. Hydropower plant (PLTA) is a power plant of EBT (Renewable Energy), which utilizes water as a primary energy source. PLTA has a very important role in balancing the stability of network systems. In improving network system stability, hydropower is operated in a wide load range, frequent start-stop, and varying loads. Other functions are also as a buffer of peak load and back up system in case of interference in the network system. Francis turbine is the most widely used turbine and has a maximum efficiency of 93-95%. Problems related to the operation of hydropower are operational instability, cavitation, vortex breakdown, pressure shocks, vibration and noise that sometimes cause turbine system failure. In relation to the above conditions then in this thesis will be studied how the occurrence of cavitation due to variations loading. Case study conducted in this research is at Cirata hydropower plant with capacity of 126 MW per unit, which has type Francis turbine vertical shaft (variation of load starts 40% and 100%). The research method is done numerically, with modeling and flow simulation using ANSYS CFX 18.2. The results of this study show that at 40% load-operating conditions there is a very low-pressure area (under vapor pressure) and the emergence of a vortex rope that causes cavitation in the draft tube area, especially in the elbow region. While at 100% load operating conditions only slightly visible low-pressure area and no vortex rope appears.
Link :
https://www.youtube.com/watch?v=pod2n89PuuI&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=27&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB50
Proposed Scheme and Future Development for Carbon Trading System in Indonesia based on Case Study in Muara Tawar Add-On Power Plant
Anjar Adhiyoso, Indratno Pardiansyah*, Pradita Yusi Akshinta and I Made Aryata 1PT Pembangkitan Jawa-Bali, Surabaya 60231, Indonesia
Abstract. The growth of electricity demand in Indonesia has enforced the government to develop several large scale power plant to electrify some region. Due to economical and operational aspects, mostly majority of plants are build based on coal-fired plant, where it can give bad impact to environment. Furthermore, some mitigation has been taken into account in attempt to reduce the GHC emissions. One of the options is by evaluating on a case in Muaratawar add-on project (Block 2, 3 and 4). The addition of HRSG at the plant is expected to reduce the GHG emissions to 0.48 Tons of CO2/ MWh with a potential carbon reduction of 3.599.410.69 Tons of CO2/ year. This paper concern on proposed business scheme for carbon trading through a comprehensive evaluation based on historical recorded data and baseline along with weighting and scoring method to select the best carbon trading system.
Link :
https://www.youtube.com/watch?v=2ffWwyYhcjc&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=28&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 100
PAPER ID: PJB51
The Effect of Decreasing Gas Turbine Flue Gas Temperature on The Performance of Muara Tawar Combined Cycle Power Plant
Muchlisin1, Nastopo Darmawan2 and Setya Budi1*
1 Operation department, PT Pembangkitan Jawa Bali UP Muara Tawar 2 Engineering department, PT Pembangkitan Jawa Bali UP Muara Tawar
email: [email protected]
Abstract. Muara Tawar combined cycle power plant consists of three gas turbines, three heat recovery steam generators and one steam turbine. An update of gas turbine blades in 2016 effected on decreasing gas turbine flue gas temperature by 8°C up to 20°C. This study aims to analyse the effect of decreasing gas turbine flue gas temperature on output power of steam turbine. The output power of steam turbines is simulated by using Cycle-Tempo software, based on combined cycle heat balance. Variations of decreasing gas turbine flue gas temperature are configured on three gas turbines, two gas turbines and one gas turbine. The result shows that every 2°C decrease in flue gas temperature of three gas turbines will decrease output power of steam turbines by 0.787%. Whereas if decrease in flue gas temperature of two gas turbines and one gas turbine will decrease output power of steam turbine by 0.532% and 0.267% respectively. Meanwhile, the simulation results show that the decrease in the output power of the steam turbine after update of the gas turbine blades, 72.8% is caused by a decrease in gas turbine flue gas temperature and 27.2% by other factors
Link :
https://www.youtube.com/watch?v=FZzwySqyO9o&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=29&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB52
Simulation of Effects Off Service Closed Feedwater Heater on Steam Power Plant Performance using Cycle Tempo 5.0
R Mahendra1, C G Wiratama2, A Setiyawan2 1 PT. Pembangkitan Jawa Bali UP Muara Karang, Jakarta
2 Sepuluh Nopember Institute of Technology, Surabaya [email protected]
Abstract. Steam power plant needs three important things in its operation, they are safety, reliability, and efficiency. Steam power plant efficiency can be elevated by installing regenerative feedwater heater. Feedwater heater is used to increase the temperature of water needed for combustion process in the boiler, therefore minimizing the fuel used in boiler. Case study is taken from PT. PJB UP Muara Karang Steam Power Plant unit 4 and 5. HPH 4 off service in August 2018 caused thermal efficiency drop about 1.86 % from the previous month. The same case was found in January 2019, in which HPH F off service caused 0.68 % from the previous month. This study’s aim is to find out the effect of off service closed feedwater heater to steam power plant performance using Cycle Tempo 5.0. Steam power plant unit 5 with 172 MW load is modelled on Cycle Tempo. Validation is done by comparing some parameter of simulation result to performance test result with 5% error tolerance. Few variation off service feedwater heater conditions are done by regulating valve for line bypass in order to set feedwater flow into tubes as well as drain flow. NPHR analysis is done by gathering net power and heat needed in boiler for each variation. The result obtained from this study shows that off service feedwater heater cause NPHR enhancement. The highest NPHR increase is achieved when HPH F is on off service condition, with value about 30.58 kCal/kWh. Off service HPH has bigger effect on NPHR increase than LPH on the same condition. Steam power plant efficiency increase continuously with the greater amount of operating feedwater heater. 3 LPH and 2 HPH usage on steam power plant with 172 MW load is assessed as adequate efficient, with all feedwater heater operating at 33.39 %.
Keywords : Cycle Tempo 5.0, NPHR, Steam Power Plant, Regenerative Feedwater Heater
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 101
Link :
https://www.youtube.com/watch?v=tmH7GzSkoqQ&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=30&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB53
Study on PV System Development at UP Brantas for Hydroelectric Power Plant Station Service
Irwan*
Operation Planning and Control Department at PT PJB UP Brantas, Karangkates, East Java, Indonesia [email protected]
Abstract. Concern toward the preservation of natural resources became one of the attention for the generation industry in Indonesia. Thus the development of renewable energy in the generation sector is important. Several hydropower plants of UP Brantas have the potential to develop PV systems in the Kolam Tando Harian (KTH) and the tailrace area. The hydropower as the object of this study, the average needed for the hydropower electricity station service per year can be calculated by calculating the PV system with 5% - 80% of the potential area that has been determined. Due to the station service costs of hydroelectric power stations increases at 0.172 $/kWH, the development of PV systems is an alternative solution to reduce the cost of hydropower station service. Refers to the capital cost of PV & energy storage issued by Lazard in 2019, it is known that the LCOE value for PV development in UP Brantas hydropower ranges between 0.11 - 0.21 $ / kWH. Compared to the import energy tariff of 0.172 $/kWH, the development of this PV plant is potential and realistic to implement. This program is aligned with government and company policies in realizing the strategic goals of renewable energy development. The development of this PV plant can be integrated later into the hydropower load center using a hybrid decentralized grid-connected PV system configuration with or without battery energy storage.
Link :
https://www.youtube.com/watch?v=8hq3HsXvSwI&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=31&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB54
Gas Fuel Mixing to Reduce Elemental Sulfur Formations on Gas Regulating and Metering Stations in Muara Karang Steam Power Plant
Frans Ericson1, Ridha Maulina1, adn Pradana Jaya Wardana1*
PT Pembangkitan Jawa Bali UP Muara Karang, Jalan Pluit Karang Ayu Barat No 1, Penjaringan, Jakarta Utara 14450, Indonesia
Abstract. Muara Karang Steam Power Plant uses natural gas as a primary energy source. Gas supplied from three different suppliers, PHE, PGN, and NR. Each supplier has different gas quality because it sourced from different gas fields and processes. To feeds gas to the boiler in Unit 4 Muara Karang Steam Power Plant, it has gas regulating facilities to reduce the pressure of natural gas from 24 kg/cm2 to 4 kg/cm2. In 2019, Control Reducing Valve (CRV) opening climbs gradually although power output from Unit 4 is constant. Inspection of the strainer found that elemental sulfur formations occur, and a clogged strainer makes gas flow to the burner reduced. To compensate for elemental sulfur formation, a fuel mixing strategy was implemented. Before the fuel mixing strategy implemented, Unit 4 needs maintenance outage every three months with a CRV gas opening increase of 0.93%/day. After the fuel mixing strategy implemented, it needs maintenance outage every five months and CRV gas opening increase of 0.44%/day because elemental sulfur formation occurs slower. The fuel mixing strategy can save up to 11.7 billion rupiahs of outage cost. Link : https://www.youtube.com/watch?v=NcBtfpY__PU&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=32&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 102
PAPER ID: PJB57
Hybrid Grey Wolf Algorithm for Energy-Efficient Scheduling with Sequence-Dependent Setup Times: A Case Study
Dana Marsetiya Utama Department Industrial Engineering, University of Muhammadiyah Malang, Jl. Tlogomas No. 246, 65144
Malang, East Java, Indonesia [email protected]
Abstract. Non-renewable energy consumption is one of the dominant factors in global warming. The industrial sector has a significant contribution to this problem. At present, the company is required to carry out efficiency, especially energy consumption, because the industry contributes to the most significant energy consumption. One effort to minimize energy consumption in the industrial sector is with proper scheduling. This research attempts to develop the Hybrid Grey Wolf Optimizer (HGWO) Algorithm to complete Energy-Efficient Scheduling (EES) on the Permutation Flow Shop Scheduling Problem (PFSP). This study considers Sequence-Dependent Setup Times on the PFSP problem. A case study was used to resolve EES on PFSP problems. The HGWO parameter experiment was also used to test the parameters in the case study solving. This research also compares HGWO with several popular procedures. The comparison of algorithms shows that the results of the HGWO algorithm are more competitive for completing EES in PFSP problems.
Keywords : energy consumption, flow shop, grey wolf, energy-efficient
Link :
https://www.youtube.com/watch?v=DFtwwniegPg&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=33&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB58
Analysis of Muara Tawar CCPP Block 1 Steam Turbine Vibration
Asnawadi Hidayat1,2,Iman Firmansyah1,3*, Unggul Wasiwitono4 1 Technology Owner Division, Muara Tawar Generating Unit, Pembangkitan Jawa Bali Company
West Java, Indonesia 2 Graduate student in Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember
3 Student in Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember 4 Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember
Kampus keputih – sukolilo, Surabaya-60111, East Java, Indonesia [email protected]
Abstract. Condition monitoring of steam turbine enables early detection of faults and avoid unexpected breakdowns. Vibration analysis has gained much attention in the field of condition monitoring because of its accuracy in detecting faults and its ability for proper diagnosis of the faults. Muara Tawar CCPP block 1 has a steam turbine generator with a capacity of 215 MW. Steam turbine roll after inspection shows high vibration occurs on bearing 1. This study aims to find the cause of this high vibration and provide recommendations to avoids such symptoms. The vibration data used in the analysis are obtained from vibration analyzer tools associated with vibration monitoring systems. It is found that the amplitude of vibration at rotational speed frequency (1X) increased and phase angle changes at a constant speed. The vibration level at the coast down is higher than the observed vibration level at run-up. There is a shift in the position of critical speed which indicates a change of rotor stiffness. It is concluded that the high vibration is likely by a thermal bow on the rotor. The thermal rotor bow is caused by a light partial rubbing between rotor and labyrinth seal on the stator
Keywords : steam turbine vibration, thermal bow, rubbing, vibration analysis. Link : https://www.youtube.com/watch?v=w116YczVKF8&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&indx=34&t=0s&ab_channel=ICIMECE2020.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 103
PAPER ID: PJB59
Collaboration Holistic Enterprise Architecture and Asset Management System for Power Generation
Rianti Setiyowati1*, M Zemmy1, P J Agung1 1 Pembangkitan Jawa Bali, Ketintang Baru 11 Street, Surabaya 60231, Indonesia
Corresponding author:*[email protected]
Abstract. Asset Management becomes the most important part of managing power generation sector. It will determine the success of efficiency and effectiveness as well as the economic value of an electric product that produced. Many power generation unit that must be managed and implementing asset management system according to the standard ISO 55001, the company no longer can not only focus on the operational terms but shifted to the strategic, where management is asked to be able to see the company in a holistic view and faster in making decisions. In this journal the authors convey the development done through the collaboration of Enterprise Architecture (EA) which is the blueprint of the organization that integrate between processes, data, applications and technology and asset management of the company as well as adding seven dimensions of performance indicators in one worksheet and linkage different from other EA through the development of application platform to digitalize the needs of the company in managing the asset that we called PJB-IMS 2.0, this concept can be a prototype for other generating company in implementing asset management system. The existence of EA realized in PJB IMS 2.0 is ensured to be in accordance with the challenges future business that increasingly complex.
Link :
https://www.youtube.com/watch?v=KrzOlO6uHts&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=35&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB60
A Study of Reducing Waste Heat Rejected by Condenser using Thermoelectric Heat Pumps to Decrease Net Plant Heat Rate of Coal
Fired Power Plant
I G A Chandra Satriya Wibawa1*, M Yunus Qomarul Huda2 and M K Wisyaldin3 1 Maintenance Department, PT. Pembangkitan Jawa Bali UP Paiton, Indonesia
2 Operation Department, PT. Pembangkitan Jawa Bali UP Paiton, Indonesia 3 Technology Department, PT. Pembangkitan Jawa Bali, Surabaya, Indonesia
Abstract. Paiton 1-2 subcritical coal-fired power plant applied coal switching program in order to can compete at Jawa-Bali electrical system. The calorific value of coal consumed is switched from 5200 kcal/kg to 4500 kcal/kg. As the result, it increases the net plant heat rate (NPHR) as well as the coal flow and produce more CO2 emissions. Increasing final feed water temperature can reduce NPHR because less heat needed to produce steam. One of promising method to increase feed water temperature is reusing wasted energy being rejected to environment through condenser. There is opportunity to reuse this waste heat by use of thermoelectric heat pumps (THPs). THPs convert electrical energy into thermal energy using Peltier effect. It can capture the heat released by condensation process and reused for increasing the feed water temperature, which can increase the cycle efficiency. Furthermore, it will reduce coal flow, decrease NPHR and aid the reduction of CO2 emissions. To maximize the energy recovery, a number of heat pumps can be used in series. This paper focused on finding the optimum number of heat pumps array. The expected feed water temperature rise gained from THPs arrangement is 19.81°C and potentially will contribute to 0.66% reduction on NPHR.
Link :
https://www.youtube.com/watch?v=6Q7pzla_INo&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=36&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 104
PAPER ID: PJB61
Technical Study of Developing Floating Photovoltaic 145 MWac Power Plant Project In Cirata Reservoir
Toni Sukmawan1*, Hanif Nursyahbani1, Hendras D Wahyudi1 , Trenindya Gunawan1 and Adi A Wijaya1 1 Pembangkitan Jawa Bali Company (PT. PJB) Unit Pengembangan Usaha dan Pembangunan Bidakara
Tower 2,16th Floor Jl Jendral Gatot Subroto Kav. 71 – 73 Pancoran South Jakarta 12870 Indonesia [email protected]
Abstract. This paper is concerning how the technical study of the 145 MWac Cirata solar Floating construction was built on the cirata dam. The Cirata floating solar power plant development plan starts with the Renewable Energy Mix target set by the Indonesian government as stipulated in the National Electricity General Planning Document 2018-2037 with a target of 23% renewable energy by 2025. Technical aspects of the study are carried out on several aspects such as availability land which will determine the type of PV Land Base or floating. with some technical considerations while eventually floating technology was chosen since has technical and financial advantages for the construction of solar power plants in this location. Subsequently, an evaluation was carried out to determine the potential for irradiation at the specific locationbju. After obtaining irradiation data and meteorological conditions, a projection of energy production in the location is carried out using the performance ratio parameters on several values to obtain the projection of annual energy production. An evaluation of interconnection was also carried out to find out whether the construction of the 145 MWac floating solar was safe against the reliability of the 150 kV and 500 kV systems in the West Java system.
Link :
https://www.youtube.com/watch?v=2Hq9jwwFNj4&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=37&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB62
Strategic Framework Supply Chain through Kraljic Purchasing Portfolio in O&M Power Plant Company
M Zemmy1*, Rianti Setiyowati2
1Pembangkitan Jawa Bali Services, Raya Bandara Juanda 17 Street, Sidoarjo, Indonesia 2Pembangkitan Jawa Bali, Ketintang Baru 11 Street, Surabaya, Indonesia
author: [email protected]
Abstract. This paper aims to determine a flexible and extensible model (strategic framework) in classifying the needs of materials/services as a procurement guideline for the company's operating and maintenance service providers (O&M) power plants. PT PJB Services is a service provider of O&M which leads the market by managing power plants scattered across various islands facing problems related to the delay supply of spare parts. One of the efforts that can be done is to increase the efficiency of the procurement process by determining the model to identify important supply chains. This Model was obtained by the analysis of purchase portfolio using the Kraljics matrix. The design is based on a spare part position in the Kraljic portfolio Matrix consisting of a dimension of risk procurement and impact profit. The application of this model enables the determination of the critical company in the high lead time problem and the provider of materials/services involved. Analysis of critical needs position (including the suppliers involved) in the Kraljic matrix allows can be defined some strategies that may be applied to the lead time reduction.
Link :
https://www.youtube.com/watch?v=6J3ND3rY2-A&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=38&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 105
PAPER ID: PJB63
Surging Phenomenon in Gas Engine Crankcase
V M Arsana 1, R R Riski 2 and P Wahyudi 3
1,2,3 Engineering Departement, Arun GEPP, PT Pembangkitan Jawa Bali, Jl. Medan Banda Aceh Gate 5.3, Desa Meuriah Paloh, Muara Satu, Kota Lhokseumawe, Aceh 24355
Abstract. An internal combustion engine is an engine whose combustion process is inside a closed room or often referred to as the combustion chamber. The Wartsila W20V34SG engine is one of the internal combustion engines used to turn generators to generate electricity, over time some new problems arise that cause engine trip. One cause of a sudden increase in crankcase pressure is the occurrence of the phenomenon of surging in the crankcase. The causes of surging originating from the phenomenon of bursts of engine exhaust gas leaks to the surface of the oil mist pipe. Where the average temperature of the exhaust gas is approximately 530 ºC so that the hot gas burst increase the temperature of the oil mist pipe and result in lower gas density and oil vapor. This phenomenon causes the air to become lighter and rise to the top and make the room in the crankcase more vacuum up to -6.29 mBar at which point the pressure will rise significantly up to ± 25 mBar. This value has exceeded the limit of the crankcase pressure protection setting which is 5.57 mBar causing the engine to trip.
Keywords: Bellows Leakage, Pressure Crankcase, Wartsila Engine, Surging Phenomenon, Active Protection
Link :
https://www.youtube.com/watch?v=ARb79JhF4Ww&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=39&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB64
Study of Counterweight Addition to Improve Structural Stability of Ship Unloader at Pulang Pisau CFPP
Khoirul huda1,a*, Ahmad Safii2,b* and Agus Priyono3,c* 1 Engineering Departement, Kaltim Teluk CFPP, PT Pembangkitan Jawa Bali, Jl. PLTU NO 1, Teluk
Waru, Kawasan Industri Kariangau KM13, Balikpapan, East Kalimantan, Indonesia 76134 2,3 Maintenance Departement, PT Pembangkitan Jawa Bali, Jl. Harun Thohir, Gresik,
East Java, Indonesia 60231
a [email protected], b [email protected],c [email protected]
Abstract. The ship unloader at Pulang Pisau CFPP is a crane type machine that is used to transport coal from barges to stockpile. This machine uses slewing bearing as component that support for slewing movement to transport coal from the barge to the belt conveyor. Meanwhile this machine also has boom that moves up and down to lift the coal towards to the hopper provided. Several times the slewing bearing was damage with the failure mode is lifted up the inner race bearing and causing the roller inside damaged. Investigation and testing are carried out to find out the strength of the structure and what are the forces that acted. From the results of the investigation and testing, it was found that the ship unloader suffered excessive moment in the front side (boom side), thus making the bearing was fruquently damaged. And the limitation about lifting angle of boom is considered. This study tries to find the balance of forces, moments, and lifting angle, and then to add a counterweight that are sufficient to reduce the impact of the unbalance moment with limitation of boom lifting angle. With the addition of counterweight and limitation angle of boom make the moments are more stable to the structure, and so the lifetime of slewing bearing is longer.
Link :
https://www.youtube.com/watch?v=nkJLXsTx_lY&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=40&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 106
PAPER ID: PJB66
Repair of Cracked 150 MW High-Pressure Steam Turbine Rotor Coupling
Andrianto Hapsoro1*, Hepy Hanipa2 and Kirill Grebinnyk, P.E3 1 Head of Engineering, PT. Sulzer Indonesia, Kawasan Industri Kota Bukit Indah, Purwakarta 41181,
Indonesia, [email protected] 2 Head of Turbo Services, PT. Sulzer Indonesia, Kawasan Industri Kota Bukit Indah,
Purwakarta 41181, Indonesia
3 Engineering Analysis Group Head, Sulzer Turbo Services Houston Inc, Houston, Old La Porte Rd, 11518, USA
Abstract. A 150 MW high-pressure steam turbine rotor in Philippine experienced cracking in coupling area. The root cause of crack failure was investigated, and it was revealed that alignment setup design from original equipment manufacturer (OEM) contributed to the failure. The cracked coupling was restored by weld build up back to original dimension and new alignment target was recalculated and the result was counterchecked by finite element analysis (FEA) method to verify the stress level reduction.
Link :
https://www.youtube.com/watch?v=UuosI43sS3Y&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=41&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB68
Efforts to Reduce SO2 Emission in Paiton Coal-fired Power Plant Andri1, B H Basuki1*, E S Seputro1, E Kusuma2
1 PT Pembangkitan Jawa-Bali 2 PT Pembangkitan Jawa-Bali UP Muara Karang
email: [email protected]
Abstract. Several breakthrough methods are needed to reduce the exhaust emissions of coal combustion in the boiler in order to meet the environmental quality standard requirements. The implementation of coal mixing is one of the short-term programs to reduce SO2 emissions, which is carried out by mixing several types of coal which have different calorific values and sulfur content to obtain the right coal mixture so that coal combustion will produce low SO2 emissions. Supply of coal with low sulfur content is getting smaller due to limited reserves, which causes the coal switching method will no longer be effective. Installation of flue gas desulfurization (FGD) facilities is an effective way to reduce SO2 emissions. Considering the condition and location of the Paiton 1-2 coal-fired power plant, the seawater desulfurization system is the most appropriate to be implemented because it is close to abundant seawater sources and the system has high reliability and effective economic value. By implementing flue gas desulphurization, SO removal efficiencies will be more than 95%.
Link :
https://www.youtube.com/watch?v=qhyDnDXtH1E&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=42&t=0s&ab_channel=ICIMECE2020
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 107
PAPER ID: PJB69
Failure Investigation of Repetitive Crack on MW-701D Gas Turbine Exhaust Manifold
Wedha A L1*, Andik Santosa2, Suwarno3, Swastika P A 4 and Dhimas N C 5
1 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
2 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
3 Mechanical Engineering, Sepuluh November Institute of Technology, Jl Teknik Industri, Surabaya, East java 60111
4 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
5 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
Corresponding email: *[email protected]
Abstract. A gas turbine power plant is the best choice for peak load conditions in power generation. As we know using gas turbine need less time to start and stop operation than a coal-fired power plant. In East Java, Indonesia has 9 unit Gas Turbine Power Plant, which usually operates in peak load conditions. In this paper, a study will carry out an investigation based on maintenance data history which since 2010 founded repeatedly crack in the exhaust manifold. Failure Investigation in the exhaust manifold has been carried so that repetitive crack can be handled in the future. The crack location was mapped to found the root cause of failure. Fuel consumption and operation condition was analyzed to find the cause of the crack. Analysis with fluent software found that streamline of flue gas makes a turbulency in the spotted area. Material selection and design no free expansion in the exhaust manifold increase possibility of failure.
Link :
https://www.youtube.com/watch?v=GIazNXoheaA&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=43&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB70
Effect of Heat Input in Dissimilar Welding on SS304H and T22 to Hardness Distribution and Delta Ferrite Content with GTAW Process
Andik Santosa1*, Suwarno2, Wedha Adji Laksana3, and F A Mantika 4
1 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
2 Mechanical Engineering, Sepuluh November Institute of Technology, Jl Teknik Industri, Surabaya, East java 60111
3 Engineering Department, PT. Pembangkitan Jawa Bali, Jl, Ketintang Baru No. 11, Surabaya, East Java 60231
4 Mechanical Engineering, Sepuluh November Institute of Technology, Jl Teknik Industri, Surabaya, East java 60111
Corresponding email: *[email protected]
Abstract. In this paper, a study was carried out on the effect of various heat input on the hardness distribution and delta ferrite content in dissimilar welding on T22 and SS304H tube boilers in power plants using Gas Tungsten Arc Welding (GTAW). The heat input used in this study is 2.9 KJ / mm, 3.1 KJ / mm and 3.6 KJ / mm. Controlling the heat input parameter is one method to reduce problems in dissimilar welding. The general problem occurs in dissimilar welding is the failure on the weldment to occur due to differences in chemical composition, mechanical properties and thermal coefficients of the two materials where it makes degradation in the microstructure in the fusion zone and creating residual stress than susceptibility to fatigue in material or cracks. All variation of heat input in this study is safe to operate in the welding process and low
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 108
tendency to hot cracking. Using the lowest variation of heat input 2.9 KJ/mm has the highest value of hardness distribution and lowest FN value.
Link :
https://www.youtube.com/watch?v=zCVe_FYzAlg&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=44&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB71
Power Generation Fire Risk Evaluation using House of Risk (HOR) Method with An Asset Management Approach
D H Hamk1,4, D S Sutarto1*, H Pariaman1,2 and M Hisjam3
1 Power Generation Engineering Department, PT. Pembangkitan Jawa Bali, Surabaya, Indonesia 2 Institut Teknologi PLN, Jakarta, Indonesia
3 Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta, Indonesia
Abstract. The risk of fire in power generation is the latest issue of concern to the electricity business. Several preventive programs such as coal dust control and the improvement of coal handling facilities to the provision of fire fighting infrastructure have been carried out continuously, but the main problem in the implementation of further work programs is finding the right policy in the main risk and determining the priority of mitigation. Integrating the House of Risk method with ISO 55001 can become an alternative to the previous methods that already exist and will be able to support the establishment of fire safety risk mitigation policies. A holistic review of business processes taking into consideration emerging risk agents in addition to risk events, risk impacts, and the occurrence of risk agents, then the method used will be able to generate a selected list of prioritized preventive actions. The results showed 41 risk events with 28 identified risk agents, furthermore, 17 risk agents were chosen as a preventive measure, and finally 8 proposed preventive actions to reduce the probability of the occurrence of risk agents that can lead to business interruption.
Link :
https://www.youtube.com/watch?v=WYGTea6i9Bo&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=45&t=68s&ab_channel=ICIMECE2020
PAPER ID: PJB76
Full Loop Numerical Simulation of Fluidization Characteristics at Cyclone and Furnace of 110 MW CFB
A Wirahadi1,2,a*, P Batubara1,2,b* 1 Commercial Department, Pembangkitan Jawa Bali, Ketintang Surabaya, Indonesia
2 Engineering Department, Prima Layanan Niaga Suku Cadang, Jakarta, Indonesia a [email protected], b [email protected]
Abstract Circulating fluidized bed (CFB) boiler has strong points with its recognition when operating with low quality coal contrast to pulverized coal boiler. Boiler load could be improved by increasing coal input and air ratio combustion adjustment. That is why ratio combustion between secondary and primary air is one of valuable parameters influencing fluidization of CFB Boiler. CFB boiler is consist mainly of a furnace, two cyclones, and forced loop pipes, where cyclones are boiler parts that were indicated to have high velocity fluidization up to 30 m/s. Full loop 3D simulation of CFB with focusing on the furnace and cyclone by using computational fluid dynamic (CFD) program was implemented using Eulerian multiphase model to investigate sand volume of fraction, air, and sand velocity including pressure distribution around Cyclone. Several air ratio combustions between primary and secondary air were simulated such as 55%-45%, 50%-50% with 63%, and 100% load variations. It was shown that operation with air combustion ratio
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 109
50%-50% and 55%-45% leads to good fluidization at 63% load, while 100% and 110% fluidization will cause an abundant sand entered to inlet cyclone and induce higher sands and air velocity.
Link :
https://www.youtube.com/watch?v=2XWxYu2Sag0&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=46&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB78
Application of Theory of Constraints (TOC) in Power Generation to Increase Overhaul Maintenance Performance and to Strengthen
Overhaul Management Process
K B Rahadi1,2*, A Setyanto1,3, D Rohmansyah1,3 1Maintenance Unit, Pembangkitan Jawa Bali Company, Jakarta, Indonesia
2Graduate student in the Department of Management, PPM School of Management, Jakarta, Indonesia 3Graduate student in the Department of Mechanical Engineering, Institut Teknologi Sepuluh Nopember,
Surabaya, Indonesia [email protected]
Abstract. Theory of Constraints (TOC) is a new concept of overhaul management in power generation. It has been effectively used in various industrial activities. This paper describes the idea of how the TOC is applicable to improve the overhaul management dealing with several constraints with a case of power plant overhaul performance. TOC uses all ve application tools to analyze a system or situation to identify a core problem, develop a solution for it, and determine how to implement that solution. These applications are CRT (Current Reality Tree), EC (Evaporating Cloud), FRT (Future Reality Tree), PRT (Prerequisite Tree), and TT (Transition Tree). The result of the study has shown several main factors causing the achievement of power generation overhaul performance not optimum. Based on the main causes that have been identified, it will give also some recommendations for improving the power generation overhaul performance such as personnel competencies acceleration and overhaul management process strengthened.
Link :
https://www.youtube.com/watch?v=X8_V3dmyDw8&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=47&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB79
CFD Modeling to Analyze Palm Shell Co-firing Percentage on Ketapang CFB Power Plant
J Dian1, H D Saksono1 and A Nugroho1
1 Department of Electricity Technology Development, PT Pembangkitan Jawa Bali, Surabaya 60231, Indonesia
Abstract. Biomass is one of the world's greatest sustainable energy potentials. Utilization of biomass in the form of Co-firing coal fuel with biomass is one alternative to reduce the dependence of fossil fuels towards green power plant. This paper addresses Co-Firing modelling test results up to 50% biomass using palm kernel shell (palm kernel shell) in Ketapang Coal Fired Power Plant (CFPP) 2x10 MW. Ketapang CFPP has circulating fluidized bed (CFB) boiler. There are several advantages by using direct co-firing in CFB boiler: direct co-firing has the lowest investment cost, CFB has a wider range of biomass selection characteristics and characteristics than PC Boilers, CFB can process biomass materials with higher moisture content, etc. Result shown that the optimum percentage of palm kernel shell biomass use in the Ketapang Power Plant is 30% palm kernel shell. This is caused by the temperature value at 18 cm above the furnace bed and furnace exit gas temperature of 30% palm kernel shell which is not too much different from the temperature value at 18 cm above the bed furnace and furnace exit gas temperature of 0% palm kernel shell. This is also
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strengthened by the high value of the CO2 mass fraction in the 30% palm kernel shell mixture, which indicates that an ideal combustion.
Link :
https://www.youtube.com/watch?v=RnYRO0s7DFI&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=48&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB81
Study of Economic Viability of Floating Photovoltaic Electric Power in Indonesia
A A Untoro1* , T Gunawan1 , B D Hidayanto1 , F A Perkasa1 and A A Wijaya1 1 Pembangkitan Jawa Bali Company (PT. PJB) Unit Pengembangan Usaha dan Pembangunan Bidakara
Tower 2,16th Floor Jl Jendral Gatot Subroto Kav. 71 – 73 Pancoran South Jakarta 12870 Indonesia [email protected]
Abstract. The government has already set target for utilisation of renewable energy to be achieved are at least 23% in 2025 and 31% in 2050. This study assess the feasibility of the implementation utility scale Floating Solar PV in Indonesia based on technical and economic perspective. The analysis focused on the assessment of solar irradiation data, modul efficiency to project electric production, followed by economic analysis on the parameter of the interest rate, debt to equity ratio, electric production, EPC Cost. In Indonesia, there is also incentives which are regulated to promote the infrastructure investment including renewable energy which are tax holiday, import tax exemption which can reduce the tariff. The investigation show that the effect the interest rate, debt to equity ratio, EPC Cost to the tariff and effect the incentive which are the tax holiday, import tax exemption to the tariff. which are evaluated for each area based on on assessment energy yield projection and dam identification to be compared to electrical generation cost (BPP Local and BPP National) where based on the simulation the electricity tariff of Floating Solar PV (4.9 – 5.8 cUSD/kWh) in each province is below the BPP
Keywords : Floating Solar PV, Renewable Energy, BPP Local, BPP National, incentive, EPC, debt to equity ratio, energy yield projection
Link : https://www.youtube.com/watch?v=a5rzdOC9NZM&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=49&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB82
Determination of VAR Compensator Placement for System Stability Improvement on Java Bali Network
A E Apriyanto1,1, A R Virgiawan1, H Pariaman1,2, M Hisjam3, N Hariyanto4 1 Power Generation Engineering Department, PT. Pembangkitan Jawa Bali, Surabaya, Indonesia
2 Institut Teknologi PLN, Jakarta, Indonesia 3 Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret,
Surakarta, Indonesia 4 School of Electrical Engineering and Informatics, Institut Teknologi Bandung, Bandung, Indonesia
Abstract. Quality of a power system network can be evaluated from its voltage performance. There are several bus/substation of Java Bali network that frequently operate in unsatisfied voltage level. As an important part of Indonesian electricity system, quality improvement of this network should be sustainably maintained. The occurring problem can be solved by reactive power compensation. Compensation can be done by installing reactive power compensator into the network. To get an optimal improvement level of voltage performance, the installation location of reactive power compensator must be carefully selected. The selection process can be done by consider the operating voltage, bus sensitivity factor, power angle sensitivity
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factor and geographic location factor on each location in the network. With consideration of these parameters then the optimal location and configuration of the reactive power compensator can be obtained.
Link : https://www.youtube.com/watch?v=5samKTiXrA4&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=50&t=0s&ab_channel=ICIMECE2020
PAPER ID: PJB85
Computational Simulation of Gas-Solid Flow to Reduce Erosion in a Circulating Fluidized Bed (CFB) Boiler
M Kamal Wisyaldin1,1, P Y Akshinta1, A Bakart1i, H Pariaman1,2, M Hisjam3 1 PT. Pembangkitan Jawa Bali, Surabaya, Indonesia
2 Institut Teknologi PLN, Jakarta, Indonesia 3 Department of Industrial Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta,
Indonesia
Abstract. Circulating uidized bed (CFB) is one type of coal combustion technologies that plays an essential role in the power generation. CFB boilers use the principle of the thermal inertia of material deliberately inserted into the furnace (known as bed materials) which is usually sand particles. The existence of materials in the form of particles with high speed can lead to erosion on the wall furnace. The amount of erosion in the furnace wall is influenced by the speed and flow pattern as well as the particle shape of the particle. This paper performed three-dimensional simulations of a CFB boiler using CPFD software to determine the behavior and location of erosion on furnace modelling and simulation. A computational particle fluid dynamics model of a pilot-scale circulating fluidized bed (CFB) was used to simulate its gas-solid flow characteristics numerically. The accuracy of the model was confirmed by a comparison of the simulation results with the operation data. Decreasing the operating parameters according to the calculation of stoichiometry reactions shows a decrease in erosion, thereby making CFB boiler more reliable. Furthermore, the simulation result provide a reference for further comprehension of the flow characteristics in CFBs.
Link : https://www.youtube.com/watch?v=kUgxtqcRJ1o&list=PLxk03d9FJa_ZFu85ybmL2uyGek92H88_9&index=51&t=0s&ab_channel=ICIMECE2020
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SPECIAL SYMPOSIUM
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Special Symposium 1
Achievements in Observation and Prediction of Cavitation: Effect and Damage on the Ship Propellers
Muhammad Yusvikaa , Aditya Rio Prabowoa , Seung Jun Baekb , Dominicus Danardono Dwi Prija Tjahjanaa,* aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
bMid-size Initial Ship Design Unit, Korea Research Institute of Ships and Ocean Engineering, Daejeon 34103, South Korea
E-mail address: [email protected]
Abstract. Cavitation erosion is the most avoided problems caused by the bubble cavitation inception. Other frequent problems occurring are vibration and noise because of the cavitation induced pressure fluctuation on the hull. This paper aims to review the cavitation phenomenon on ship propellers, which have been performed in the previous research. Several techniques to obtain reliable observation and prediction of cavitation inception, related to the adverse effect on material damages are discussed through advance experimental laboratory and numerical modeling. Then, prediction and observation of cavitation behavior on the full scale and model scale, cavitation flow behind hull conditions, and geometry modification of the skew propeller are thoroughly discussed
Keywords : Propeller, Cavitation, Erosion, Experiment, Numerical modeling
Special Symposium 2
Analytical Review of Material Criteria as Supporting Factors in Horizontal Axis Wind Turbines: Effect to Structural Responses
Dandun Mahesa Prabowoputraa , Aditya Rio Prabowob , Aldias Bahatmakac , Syamsul Hadib, * a Graduate School of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
b Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia c Daewoo Shipbuilding & Marine Engineering, Gyeongnam 53302, South Korea
E-mail address: [email protected]
Abstract. The potential of wind energy sources in Indonesia is quite large, with a potential of 60 GW. This fact shows that wind energy has great potential to be developed into a major energy source in Indonesia, especially in the development of wind energy power plants. The growth of wind energy power plants is in line with government regulations, where the government is targeting that in 2050 new renewable energy can supply national energy by 25%. This research, a literature review has been carried out on the supporting components of the turbine structure that affect wind turbine performance. The turbine performance is influenced by several things, including turbine materials, turbine rotors, and turbine structure. Turbine structures that need to be considered include generators, batteries, and gearboxes. Horizontal type wind turbines are recommended using washing machine motors and treadmill motors generators. Materials recommended for wind turbine components include Aluminum Alloy, natural Composite, CopperAluminum-Nickel, Copper-Zinc-Aluminum, and Nickel-Titanium. Then the factor of damage to the turbine installation in the coastal area is dominated by ship collisions. Some factors that must be considered are velocity, type of vessel, collision direction, and Collision angle
Keywords : Wind turbine; HWAT; material; renewable energy
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Special Symposium 3
Crashworthiness Analysis of Attenuator Structure based on Recycled Waste Can subjected to Impact Loading: Part II – Geometrical Failure
Laksmana Widi Prasetya1 , Aditya Rio Prabowo1 , Ubaidillah1,*, Nur Azmah Binti Nordin2 1 Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
2 Malaysia-Japan International Institute of Technology - University Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
E-mail address: [email protected]
Abstract. Vehicle safety is one of the most research fields within the technology. The car industry is developing passive and active safety systems techniques to enhance passenger safety. To scale back development costs and test new security architectures, it is recommended to be utilized in the evaluation of initial accident safety calculations under vehicle trials. One device that has succeeded in reducing damage to vehicle structures and repairing damage to passengers because of collisions is that the impact attenuator. Usually, the impact attenuator is created of aluminum, honeycomb, carbon, composite, and tinfoil. But on the other hand, these materials tend to possess high prices. So, we decided to do a numerical test of the impact attenuator employing a recycle that is also made from aluminum alloy. This study aims to research and study the deformation phenomena that occur in impact attenuators with numerical tests.
Keywords : Impact Attenuator; Formula Student; Crashworthiness; Impact Analysis
Special Symposium 4
Crashworthiness Analysis of Attenuator Structure based on Recycled Waste Can subjected to Impact Loading: Part I – Absorption
Performance
Laksmana Widi Prasetyaa , Aditya Rio Prabowoa , Ubaidillaha, *, Nur Azmah Binti Nordinb a Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
b Malaysia-Japan International Institute of Technology - University Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
E-mail address: [email protected]
Abstract. An impact attenuator, commonly called crash cushion or crash attenuator, could be a part that is accustomed to reduce the damage that happens to the vehicle structure when an accident occurs during a vehicle. Recently there are such a significant amount of materials for impact attenuators that are usually fabricated from aluminum, honeycomb, carbon, composite, and tin foil or a mix of those materials to produce maximum protection to the driving force, where these materials tend to own high prices. Meanwhile, the impact attenuator design must be of lightweight material, which may contribute to improving acceleration performance and meeting compatibility with competition rules. So, we decided to try and do a numerical test of the impact attenuator using recycle waste can, which is additionally made from aluminum alloy. This research mainly deals with the event and style of impact attenuators for student formula cars that listen to economics, innovation, and easy making.
Keywords : Impact Attenuator; Formula Student; Crash-Worthiness; Impact Analysis.
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Special Symposium 5
Current Research and Recommended Development on Fatigue Behavior of Underwater Welded Steel
Ericha Dwi Wahyu Syah Putri, Eko Surojo, Eko Prasetya Budiana, Triyono* Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
E-mail address: [email protected]
Abstract. Underwater welding is the process of joining materials in the underwater. This process carried out to maintain or improve the structure of the material in water environments such as rivers and the sea. The underwater welding process consists of dry and wet welding. Underwater dry welding (UDW) is a welding method using a chamber that conditioned in the air environment. Whereas underwater wet welding is the welding process using a particular waterproof stick electrode, which directly water environments. UWW does not require a specific area during the welding process so that the operation is more accessible than other methods. So, the cost required is cheaper. However, the UWW technique has a disadvantage due to the water waves whose magnitude is always changing around the welding area. Cyclic loads that occur continuously can cause defects in the underwater welding results, such as inclusions. If there are several inclusions, so it will cause an increase in the rate of fatigue crack propagation. Fatigue behavior in the underwater joint can be a significant problem that must resolve. Therefore, this review article can be a reference in determining the steps to improve and increase the fatigue resistance of underwater welding joints.
Keywords :Underwater welding; dry welding; wet welding; underwater welding defects; resistance fatigue
Special Symposium 6
Editorial: Integrity of Mechanical Structure and Material
Aditya Rio Prabowo*, Ubaidillah, Fitrian Imaduddin Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta, Central Java 57126, Indonesia
E-mail address: [email protected]
Abstract. The International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering (ICIMECE) was formerly known as the International Conference in Mechanical, Electrical, and Chemical Engineering (IMECE). It was first held in November 2015 by Members of Engineering Faculty, Universitas Sebelas Maret (UNS), Surakarta, Indonesia. Every year, the Engineering Faculty organizes ICIMECE as a technical conference offering the possibility to present research updates, share new ideas, and foster collaborations. The ICIMECE conference has become a key event for all those interested in current developments in mechanical engineering, electrical engineering, industrial engineering, and chemical engineering, where to meet university researchers, government scientists, private sector developers, and industrial practitioners. Papers in the former conference series have successfully been published in the conference proceedings, which are indexed by Scopus. The conference theme in the 6th ICIMECE 2020 is designated to be “Towards the development of intelligent green technology to contribute high energy efficiency with low environmental impact.“ The conference will address the practical engineering application (mechanical, electrical, energy and power engineering, industrial engineering, and chemical engineering). This conference provides opportunities for the delegates to exchange new ideas face-to-face to bring together leading academic scientists, researchers, and research scholars to exchange and share their experiences and research results on all aspects of engineering, science, and technology.
Keywords : Computational analysis; Laboratory experiment; Advanced material and characterization; Critical structures and infrastructures
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Special Symposium 7
Effect of Reinforcement Material on Properties of Manufactured Aluminum Matrix Composite Using Stir Casting Route
Hammar Ilham Akbar, Eko Surojo*, Dody Ariawan, Galang Ariyanto Putra, Reyhan Tri Wibowo Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta,57126, Indonesia
E-mail address: [email protected]
Abstract. Composite is a lightweight material that used and developed in various industries. The use of aluminum matrix composites as structural and automotive materials has increased in recent years. One of the obstacles in the development of aluminum matrix composites is high-cost production, especially raw material for reinforcing particles. One innovation is the use of natural materials and waste as reinforcement in aluminum matrix composites. Sea sand is one of the natural materials containing ceramic or oxide compounds so that it has the potential to be used as reinforcement in aluminum matrix composites. This paper compares the physical and mechanical properties of aluminum composite production using sea sand particles and composites with commonly used ceramic particle reinforcement, such as alumina and SiC. Calculation of density and porosity shows that Al6061/sea sand composites have higher density and lower porosity compared to Al6061/Al2O3 and Al6061/SiC composites. The hardness of Al6061/sea sand composite is higher compared to Al6061/Al2O3 and Al6061/SiC composites
Keywords : Aluminium; Composite; Sea sand; Stir casting
Special Symposium 8
Energy Dissipation of Ship Structures subjected to Impact Loading: A Study Case in Side Collision
Aditya Rio Prabowoa , Haris Nublib, *, Jung Min Sohnc a Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
b Interdisciplinary Program of Marine Convergence Design, Pukyong National University, Busan 48513, South Korea
c Department of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan 48513, South Korea
E-mail address: [email protected]
Abstract. The main goal of the present paper is to study the energy dissipation characteristic as the influence of parameters in the event of ship collisions. The review is conducted on accident case between Roll on-Roll off (Ro-Ro) Marisa Nusantara with Reefer Qi Hang at Sunda Strait, Indonesia May 3rd, 2014, as reference. It was later modeled and analyzed by nonlinear simulations finite element (FE) method was presented to be used as a reference to get the verified model. This collaboration study is considered as a good reference because it used real accident damage to compare the numerical results. The result in collision energy from the virtual simulation was later verified with the calculation result of the empirical formula. In the extended study, the collision region and material model are selected as influenced parameters to design collision scenarios. The characteristic of collision energy from these scenarios will be discussed. In the same section, the damage pattern is observed and reviewed to find the relation between several parameters to calculation results. It was shown that the influence of region and location of target points contributed significantly to energy dissipation. In contrast, the key finding in material properties is that when Young’s modulus between materials was the same and the difference of yield strength of materials was not significant, then other material properties contributed to the result.
Keywords : Accidental loads; ship collision; Ro-Ro vessel; double-hull structures; crashworthiness; energy dissipation
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 117
Special Symposium 9
Finite Element Analysis (FEA) on Autonomous Unmanned Surface Vehicle Feeder Boat subjected to Static Loads
Aknaf Sam Dabita , Abdillah Ebriel Liantoa , Satrya Ady Brantaa , Fajar Budi Laksonob , Aditya Rio Prabowoa , Nurul Muhayata,*
a Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia b Department of Research and Development, DTECH-Engineering, Salatiga 50742, Indonesia
E-mail address: [email protected]
Abstract. Unmanned Surface Vehicle (USV) has many roles in various maritime fields. In Indonesia, many fish farmers still do the process of feeding fish manually using human labor. For fish farmers who have a more extensive pond can only sow fish feed on the edge of the pond, so that fish feed cannot be evenly distributed to the middle of the pond. This autonomous surface vehicle feeder boat is made as a solution to the problem of fish farmers who have a large pond size in fish feed distribution more evenly. Fish feeding is done automatically by an autonomous surface vehicle feeder boat with a fish feed capacity of up to 8 kg. The autonomous surface vehicle feeder boat is equipped with an ultrasonic sensor that is connected to a microcontroller to move the boat steering wheel to turn when a collision occurs with a pool boundary. The autonomous surface vehicle feeder boat has two control modules, which are moving automatically or manually using a remote control. Users can change the settings of this module from the remote control as needed. The hull used is the catamaran hull type. Catamaran hull was chosen because it has a good level of stability. Hull construction on this boat must have the strength that can sustain all the burden on the boat. Therefore, in this paper, the hull design of the boat tested with balsa wood material uses the Finite Element Analysis (FEA) method to determine the strength of stress, strain, and displacement that may occur using 3D mechanical design. Static loading is chosen in the hull design test method. This test analysis is used to determine whether the design with the specified material can be made.
Keywords : Boat hull; unmanned surface vehicle; Finite Element Analysis (FEA); structural response
Special Symposium 10
Finite Element Analysis of Different Artificial Hip Stem Designs Based on Fenestration under Static Loading
Ikhsana , Aditya Rio Prabowob , Jung Min Sohnc , Joko Triyonob, * a Graduate School of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
b Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia c Interdisciplinary Program of Marine Convergence Design, Pukyong National University, Busan 48513,
South Korea E-mail address: [email protected]
Abstract. Permanent hip joint damage caused by calcification, aging, or accidents requires replacement using artificial hip joint replacement surgery. Among the biomaterial applications, the Total Hip Replacement (THR) method is the most successful. Many types of artificial hip joints are available in the commercial market. Various types of material and design can be selected to suit the needs of the patients. One of which is the design with fenestration type on the hip stem. In terms of materials, Titanium and stainless steel are the ones commonly used in hip joint replacement. In this paper, the effects of fenestration hip stem on mechanical behavior have been studied using the finite element analysis. Several hip designs, i.e., the hip joint without fenestration, hip joint with fenestration slot, hip joint with fenestration big loop, and hip joint with fenestration multi-loop, were considered in this study. All models were applied using Autodesk inventor model. Static structural analysis was performed using ANSYS to conclude at the best fenestration. Results showed that for Ti-6Al-4V material, design with many loop fenestration has the lowest stress than others, with the result obtained is 495.46 MPa. However, the artificial hip stem with slot fenestration has the smallest deformation with the least difference in value compared to other designs with distortion 0.54808 mm. In
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addition, the design that produced the higher stress von-Misses was big loop fenestration 526,28 MPa. In conclusion, it was found that all four designs indicated lesser stress values than the yield strength
Keywords : Hip stem; finite element analysis; Ti-6Al-4V; fenestration
Special Symposium 11
Finite Element Based Analysis of Steering Construction System of ORCA Class Fisheries Inspection Ship
Astarry Nugrohoa , Khaeromanb , Haris Nublic, *, Aditya Rio Prabowod , Hartono Yudoe a A.P Moller-Maersk Line, Jakarta 10220, Indonesia
b Politeknik Maritim Negeri Indonesia, Semarang 50233, Indonesia c Pukyong National University, Busan 48513, South Korea d Universitas Sebelas Maret, Surakarta 57126,
Indonesia e Universitas Diponegoro, Semarang 50275, Indonesia E-mail address: [email protected]
Abstract. The fisheries inspection class is the ship which featured with high maneuver and speed. The rudder construction system must be strong enough to withstand the external pressure due to the maneuver of the ship. Therefore, material selection must be proper. Before selecting the material, the external pressure of steering construction must be examined and performs the Finite Element (FE) analysis. In this paper, the variable for FE analysis was focused on the slope of the rudder. It consisted of 0o, 10o, 20o, and 35o. The slope analysis was performed numerically by Computational Fluid Dynamics (CFD) software. Then, the external pressure can be generated based on the CFD analysis results, which can be used as an input force in Finite Element analysis. Finally, the results were distinguished from the von-Mises stress, deflection, and safety factor. Each component of the steering construction system was examined in which the component consisted of the rudder, rudder stock, flange, bolts, and nuts. It was found that the flange component had a more significant value of stress and a smaller value of safety factor. onclusion, it was found that all four designs indicated lesser stress values than the yield strength
Keywords : Fisheries inspection ship; Rudder construction; Stress analysis; Finite Element Analysis
Special Symposium 12
Fracture and Damage to the Material accounting for Transportation Crash and Accident
Ridwana, Teguh Putrantob, Fajar Budi Laksonoc, Aditya Rio Prabowoa,* aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
bDepartment of Civil Engineering and Architecture, Tallinn University of Technology, Tallinn 19086, Estonia cDepartment of Research and Development, DTECH-Engineering, Salatiga 50742, Indonesia
Abstract. In this paper, reviews of several fractures and damage to materials in their use are presented. As happened in the coal train axle and the gas pipelines are corrosion and can cause fracture and damage. Prevention and lessons that can be drawn from severa levents are positive things to avoid similar incidents in the future. Damage to the material also can occur one of them due to the influence of nature like floods and earthquakes. This paper also reviews crashes in transportation, one of which is due to a lack of attention among motor vehicle drivers who contribute to almost one in three fatal traffic accidents between 2011 and 2015 in Norway. Hence, the finite element method done to estimate the event of a crash between transportation to improve passenger safety as consideration is the location of the center of gravity of the vehicle and the safety of the passenger compartment.
Keywords: Fracture; damage; crash
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 119
Special Symposium 13
Fractures on Braking Component and Relations to Land-based Transportation Accident
Mufti Reza Aulia Putra, Dominicus Danardono Dwi Prija Tjahjana* Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Abstract. The braking system is an essential part of vehicle transportation. Braking system functions to reduce or stop vehicle speed. The commonly braking system is to use the friction principle. Braking has a weakness in the lifetime of the braking component. In general, braking lifetime is affected by wear and mechanical damage. Mechanical damage can be caused by using the wrong type of component, and this weakness can be solved by researching braking components. This paper will discuss the damage to the braking system and its effects. One way to fix the risk of damage to the braking component is by modifying the material. By adjusting the material can increase the endurance of the braking component. The research process can be started by calculating the braking needed. Then make a modeling and experimental tests. The simulation process can provide economical and fast solutions in a study, but the experimental procedure can offer a real picture of a problem. The braking performancecan be affected by the material changing, and the calculation of the effect can be done using a modeling or experimental process.
Keywords: Brake; brake system; wear; friction
Special Symposium 14
Free Vibration Analysis of Interfacial Debonded Sandwich of Ferry Ro-Ro’s Stern Ramp Door
Tuswan Tuswana, Achmad Zubaydia,*, Bambang Piscesab, Abdi Ismaila, Muhammad Fathi Ilhama
aDepartment of Naval Architecture, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia bDepartment of Civil Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
Abstract. The dynamic characteristic of interfacial debonded Ferry Ro-Ro’s stern ramp/door is studied by using finite element software ABAQUS. The effect of debonding on vibration responses of damaged stern ramp/doors is assessed by comparing numerical parameters of natural frequency shifts between intact and damaged models. Parametric studies over a wide range of debonding shapes to explore the influence of this parameter on the overall dynamic behavior of the models are investigated. Boundary conditions describing the loading conditions of the ship are evaluated. Four different debonding shapes with a similar debonding ratio, such as circular, square, through-the-length, and through-the-width, are investigated. To evaluate the effect of modeling techniques, both debonding shapes with and without spring contact element models are examined. Consequently, natural frequencies shift is being determined as functions of these parameters that enable to conclude the influence of debonding. The result has been shown that the debonding defect reduced the natural frequencies, especially in the square and circular debonding shapes. There is no significant frequency shift in the through-the-length, and through-the-width debonding modeling. Neglecting of contact leads to incorrect results, which significantly overestimate the value of natural frequency, so the spring contact modeling is recommended. The higher natural frequencies are found to be more sensitive to the presence of debonding problems. Using natural frequency shifts directly resulting from both intact and debonded models, the diagnostic can be performed.
Keywords: sandwich, ramp door, ferry ro-ro, debonding, free vibration analysis
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 120
Special Symposium 15
Hydrodynamic and Structural Investigations of Catamaran Design
Rizki Ispramudita Juliantoa, Teguh Muttaqieb,c, Ristiyanto Adiputrad, Syamsul Hadia, Raymundus Lullus Lambang Govinda Hidajata, Aditya Rio Prabowoa,*
aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia bDepartment of Naval Architecture and Marine Systems Engineering, Pukyong National University,
Busan 48513, South Korea cAgency for the Assessment and Application of Technology, Jakarta 10340, Indonesia
dDepartment of Marine Systems Engineering, Kyushu University, Fukuoka 819-0395, Japan [email protected]
Abstract. The type of hull in the catamaran is developed by following the design criteria. A catamaran has advantages over a monohull in terms of broad layout, excellent stability, and obstacles on small vessels. The catamaran design follows the semi SWATH type design by having two hulls with a small hull front corner and modeling on INCAT wave-piercing catamaran to determine the structural response to the ship, and the wave slamming process. In the simulation analysis using fluid-structure interaction with RANS and also the strength of the catamaran structure using the FE method and large base scale. In modeling also to show the hydroelastic response to the ship structure that makes the dynamic interaction between waves and ship structure more practical. Then, the design optimization of the catamaran is directed to the addition of keel fins and the application of titanium materials.
Keywords: INCAT Catamaran; FE method; FSI (Fluid-Structure Interaction); Keel fins
Special Symposium 16
Improvement of Auto Checking Hardness Machine using Several Material Series of Aluminum Structural Frame: Case Study on
Mitutoyo HR-522 Hardness Tester
Bernardus Plasenta Previo Caesara, Iwan Istantob, Pandu Sandi Pratamac, Joung Hyung Chod, Aditya Rio Prabowoa,*
aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia bAgency for the Assessment and Application of Technology (BPPT), Jakarta 10340, Indonesia
cCobot Co., Industry Research Building Room 121, Dong-A University, Busan, South Korea dDepartment of Industrial Design, Pukyong National University, Busan 48513, South Korea
Abstract. The hardness-checking tools are essential tools in engineering study, especially in the mechanical and manufacturing process. The field problem in Akebono Brake Astra Indonesia is the utilization of more manual tools to achieve product demands. Considering those issues, the development of a modified hardness checking tool from manual operation to automatic operation. For more effectively, it uses automatic operation in time and savings for other manual tools. The automated tool applies the 3-axes system mechanism using Festo linear actuator with the servo motor. The testing capacity of automatic devices is equal to more manual devices. The frame of the auto-checking hardness machine is assessed by applying load variations. This paper provides a comparison of various aluminum frame types based on different tensile strength and cross-sectional area values. The value of displacement and maximum stress depends on the ultimate tensile strength properties and cross-sectional area of the frame.
Keywords: Auto checking hardness; component displacement; critical stress; Finite Element Method (FEM); reverse engineering
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 121
Special Symposium 17
Investigation of Industrial and Agro Wastes for Aluminum Matrix Composite Reinforcement
Hammar Ilham Akbar, Eko Surojo*, Dody Ariawan Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Abstract. Sustainable development of materials, environmentally friendly, and low-cost production is the background of this paper. The researchers focus on developing lightweight metal matrix composite materials with various reinforcements from chemical processes such as Al2O3, SiC, and graphite. These additions resulted improve in mechanical, physical, thermal, and corrosion properties of the materials. This paper offers the potential of alternative reinforcing materials that are inexpensive, easily accessible, and physical and mechanical properties equal to conventional particulates. Industrial and agricultural wastes that rich in oxide material can be used as an alternative material in metal matrix composite. Based on a review of the literature, various debris such as fly ash, bottom ash, rice husk ash, bean pod ash has been used as reinforcement in metal matrix composites. The literature states that the addition of particulates from industrial and agricultural waste improved the mechanical properties of composite materials.
Keywords: Aluminium; Composite; Waste; Reinforcement
Special Symposium 18
Investigation of Optimum Ply Angle using Finite Element (FE) Approach: References for Technical Application on the Composite
Navigational Buoys
Nurul Hudaa,*, Aditya Rio Prabowob
aPT Limov Power Structure, Tangerang 15810, Indonesia bDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Abstract. The composite material is used to substitute steel as the material of the navigational buoy in this study. Linear Elastic behaviors of composite navigational buoy shells are studied using Finite Element software SolidWorks Simulation. In the present work, a composite navigational buoy with different fiber angle/orientation, i.e., 0°, 15°, 30°, 45°, 60°, 75°, and 90°, are analyzed using three composite materials: Polyester/E-glass, Vinyl ester/E-glass, Epoxy/E-glass through comparative analysis. The effect of the ply angle on composite cylindrical shells subjected to hydrostatic pressure is investigated. Both stress and deflection are considered in the study. The results show that Epoxy/E-glass with ply angle 0° has the highest Tsai-Wu factor of safety 4.23.
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 122
Special Symposium 19
Land and Marine-based Structures subjected to Explosion Loading: A review on Critical Transportation and Infrastructure
Aditya Rio Prabowoa,*, Quang Thang Dob, Bo Caoc, Dong Myung Baed
aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia bDepartment of Naval Architecture and Ocean Engineering, Nha Trang University, Nha Trang 650000,
Vietnam cChina Shipbuilding Industry Corporation Economic Research Center, Beijing 100012, China
dDepartment of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan 48513, South Korea
Abstract. The risk of accidental loads on various engineering structures is not possibly avoided in each operation, which makes workers, structures, and industries susceptible to remarkable loss once the loads occur. According to its derivative, an explosion is included in the accidental load type. The chain reaction from explosion accidents causes a wide range of economic state and industrial stability, especially during incidents of transportation mode and critical infrastructure. This work is aimed at brief quantification of explosion losses in several high profile accidents, e.g., reservoir site, nuclear power plant and offshore installation, and presentation of research development to estimate safety against explosion loads. A series of main discussions are directed to assess the structural integrity of explosion subjects, which is previously conducted by numerical approach and medium-scale experiment. Initial estimation of the investigation indicates that high-security facility and military vessel are no exception of the explosion casualties, which in the land-based structures, the damage is contributed by an internal error that leads to the main accident while in marinebased structure, external factor, e.g., explosion due to weaponry use plays a major role in structural damage.
Keywords: Accidental loads; explosion; marine vessel; nuclear power plant; offshore installation; reservoir site; underground tunnel
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 123
Special Symposium 20
Numerical Investigation Against Laboratory Experiment: An Overview of Damage and Wind Loads on Structural Design
Aldias Bahatmakaa,b,*, Dong-Joon Kimc, Aditya Rio Prabowod
aDaewoo Shipbuilding and Marine Engineering (DSME).Co.Ltd, Okpo 53305, South Korea bInterdisciplinary Program of Marine Design Convergence, Pukyong National University, Busan 48513,
South Korea cDepartment of Naval Architecture and Marine Systems Engineering, Pukyong National University, Busan
48513, South Korea dDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia
Abstract. The numerical approach is being used against experimental and solves engineering problems. In the engineering design, the structural and load analysis are a part of an important thing to show the effect of geometrical or the structure design. The main purpose is to review the influence of deckhouse height on the flow around the funnel and aft ship structure. In this review study, the fluid-structure and 3D steady RANS CFD are used to validate the result of simulations. Several aspects of the numerical approach, such as turbulence modeling, boundary conditions, inlet velocity, and pressure outlet to simulate wind load in CFD, ground surface roughness, and quantification of wind loads by computational fluid-structure and computational fluid dynamics (CFD) are summarized. A benchmarking study of the numerical approach against the experiment is emphasized. A comparative study among the numerical prediction on the wind tunnel demonstrated good agreement and satisfaction. Moreover, by numerical approach could handle the accurate results and show how the response to the ship structure that makes the dynamic interaction during wind loads events.
Keywords: Fluid Structure; Wind Loads; Numerical Approach; CFD; Experimental
Special Symposium 21
Recent Developments on Underwater Welding of Metallic Material
Eko Surojo, Ericha Dwi Wahyu Syah Putri, Eko Prasetya Budiana, Triyono*
Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia [email protected]
Abstract. Underwater welding is the process of connecting two similar or different metals which are carried out underwater. This process is applied in various construction of engineering materials both on land and underwater environments such as in ship construction, oil and gas mining in the middle of the sea and nuclear power plants. Material construction greatly influences the method suitable for the welding process. It will affect the evolution of the microstructure and mechanical properties of the material. So, it will affect the results of the welded joint.
Keywords: Underwater welding; application of underwater welding; the affect of welded joint
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 124
Special Symposium 22
Structural Assessment of an Energy-Efficient Urban Vehicle Chassis using Finite Element Analysis – A Case Study
Angga Kengkongan Ary, Aditya Rio Prabowo, Fitrian Imaduddin*
Department of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia [email protected]
Abstract. Chassis is one of the most critical parts of a vehicle, which is the original supporting structure. Pioneer research indicates that frame tends to receive excessive loads and possibly causes undesirable behavior, i.e., cracks or significant failure. Several other studies also shown interest in the influence of certain materials on chassis behavior, however not explicitly discussed. Based on these studies, it concludes that further research on chassis needs to produce research data for future consideration in the assessment and development of frame. Several subjects which can be research opportunities are the effect of variations in the thickness of the chassis, the influence of different materials, and the impact of the value of the force applied. This paper aims to assess the behavior tendency of the urban vehicle chassis with primary consideration to comply with the standard regulations in the energy-efficient vehicle competitions such as in the Shell Eco-Marathon Asia or the National Energy Efficient Vehicle Competition (Kontes Mobil Hemat Energi or KMHE). A particular operational factor (external load and internal factors), i.e., the material is considered in the chassis performance investigation. Assessment of these parameters is applied to urban vehicle chassis that was designed by the students of Universitas Sebelas Maret. Modeling and numerical analysis conducted using a finite element approach by Autodesk Fusion 360 software. The acquired results indicate that reduction trends occur in strength as the thickness of the material decreases. In terms of loads, changes in load distribution are spotted in several cases. Meanwhile, the difference in material strength causes a variation of force distribution. Keywords: Urban vehicle chassis; Finite element analysis; Material thickness; Material types; Working load
Special Symposium 23
Thermogravimetry and Interfacial Characterization of Alkaline Treated Cantala fiber/Microcrystalline Cellulose-Composite
Sakuri Sakuria,b, Eko Surojoa, Dody Ariawana,*
aDepartment of Mechanical Engineering, Universitas Sebelas Maret, Surakarta 57126, Indonesia bDepartment of Mechanical Engineering, STT Wiworotomo, Purwokerto 53134, Indonesia
Abstract. The effects of alkali treatment on morphology, thermal stability, and interfacial shear strength of cantala fiber (CF) were investigated. CF untreated and treated with 6% sodium hydroxide (NaOH) for soaking times 3 h, 6 h, 9 h, 12 h, and 15 h. The results of untreated and treated fibers were observed by the Scanning Electron Microscope (SEM). The results of scanning electron microscopy on the CF surface showed cleaner fibers and increased surface roughness by alkali treatment. Alkali treatment has changed the characteristics of the fiber surface topography as seen in the SEM results. CF with soaking over 6 h occurs of damage to the fibrils and fiber structure. Prolonged treatment results in poor fiber quality. Thermogravimetric analysis (TGA) is used to measure the amount and rate of change in CF weight that is not treated and treated. The results of the study show that alkaline treatment improves most of the fiber's properties. The thermal stability of treated CF is higher than that of untreated. Interface shear strength tests show that fiber with 6% treatment, and 6 h soaking, gives the most upper strength of 3.67 MPa, an increase of 47.39% if compared before treatment. Flexural strength and modulus of elasticity were increased with alkali treatment and the addition of microcrystalline cellulose.
Keywords: Cantala fibers; Electron microscopy; Thermal properties; Interfacial bonding
The 6th International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering 125
