Seize The Digital Future · 2020-06-15 · Today’s microsurgical landscapes require advanced...
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Introduction Ireland relies heavily on imported natural gas, which is used for electricity generation, heating and cooking. Therefore, grid injection of renewable gas is very attractive. Replacing heat from fossil fuels with heat from renewable sources is a significant challenge. Due to Ireland’s favourable growth climate, bioenergy is expected to play a major role in meeting renewable heat (and transport) targets; however, to date its uptake has been very low. Barriers include: low efficiency of conversion technologies; high capital and biomass fuel costs; absence of large heat loads (no district heating networks and very little heavy industry). Synthetic natural gas production via biomass gasification (BG-SNG) with subsequent grid injection can overcome these barriers. With reference to Fig. 1, a BG-SNG plant comprises a gasifier followed by gas cleaning (removal/conversion of impurities) and upgrading (methanation and inert gas removal) steps. Development of these plants is at an early stage; 1 MW SNG (SNG output) pilot plant tested in Austria and 20 MW SNG demonstration plant operating in Sweden (refer to Fig. 2 and Fig. 3). The GoBiGas plant began injecting bio-SNG into the natural gas grid in late 2014. The plant ran almost continuously during 2015. The plant operates at an efficiency of ~65% (biomass fuel to bio-SNG) [3]. Commercial BG-SNG plants are expected to be of the scale 20-200 MW SNG . Scale has a strong impact on cost and therefore large scale is preferable; however, scale will be limited by biomass supply logistics. In Ireland plant scale will likely be limited to 30-50 MWth (biomass fuel input) to ensure a sustainable indigenous supply of biomass fuel. SNG production via BG could be pivotal in ensuring Ireland achieves future renewable heat and transport targets (2020 targets unlikely to be met). Gas Networks Ireland (formerly Bord Gáis Networks) hope to achieve ~10% renewable gas supply within 10 years [4]. Modelling of Synthetic Natural Gas Production via Biomass Gasification for Renewable Gas Grid Injection Dr Wayne Doherty School of Mechanical and Design Engineering, Dublin Institute of Technology, Bolton Street, Dublin 1, Ireland [email protected] Fig. 5 FICFB gasifier model Aspen Plus flowsheet References [1] Agersborg J, Lingehed E. Integration of Power-to-Gas in Gasendal and GoBiGas. Master’s thesis report no. T2013- 396. Chalmers University of Technology; 2013. [2] http://biomassmagazine.com/articles/10147/valmet- supplied-gasification-plant-inaugurated-in-sweden [3] Svensson and Baxter (Eds), IEA Bioenergy Task 37 – Country Reports Summary 2015. [4] http://renewablegasforum.com/about/ [5] Higman C, van der Burgt M. Gasification. Burlington, MA, USA: Gulf Professional Publishing; 2003. [6] Basu P. Biomass gasification and pyrolysis: practical design and theory. Academic Press; 2010. [7] Rauch et al., Biomass gasification for synthesis gas production and applications of the syngas, WIREs Energy Environ 2014, 3:343-362. [8] Rabou and Overwijk, The Alkmaar 4 MW bio-SNG demo project, 3 rd International Conference on Renewable Energy Gas Technology, Malmö Sweden, 2016. [9] Domenichini et al., A review of available and emerging technologies for the production of substitute natural gas via gasification of biomass, Chemical Industry Digest 2013, 46- 52. [10] Bord Gáis, The Future of Renewable Gas in Ireland, 2010. Research in Ireland to date To date, research in Ireland has focussed on anaerobic digestion (AD) systems for biogas production, upgrading and grid injection. Numerous articles have been published by a research group at UCC. In 2010, a Bord Gáis report titled “The Future of Renewable Gas in Ireland” based on the results of research carried out at UCC was published [10]. It highlighted the potential production of renewable gas from grass and waste via anaerobic digestion in Ireland. Under the baseline scenario (i.e. realistic potential), there is the potential to meet 7.5% of Ireland’s natural gas demand with renewable gas by 2020 (shown in Fig. 4). Biomass gasification has many advantages over anaerobic digestion with respect to renewable gas production: • BG is a more efficient process (70-80% versus 20-40%) • AD is limited by scale to ~1 MWth (economics of collection and transportation of wet biomass) • BG exhibits greater potential for improvement in biomass to SNG performance (e.g. pressurised steam blown BG would enhance methanation process efficiency) • BG is a much faster process and allows greater control Considering gas injection quantities (in Ireland), it will be necessary to connect BG-SNG plants to the high pressure transmission natural gas grid; whereas, small scale AD plants would be connected to the low pressure distribution grid. It would not be financially viable to connect small scale AD plants to the transmission grid (gas compression costs). As a result, AD plants will be limited by residential/commercial heat demand meaning they would have to shutdown during summer. BG-SNG plants connected to the transmission grid would not be affected by this drop in demand because natural gas power plants operate year round. A combined effort of anaerobic digestion and gasification will be required to deliver sufficient renewable gas to replace a significant level of fossil natural gas. Fig. 1 BG-SNG plant and applications block diagram Fig. 2 Simplified schematic of GoBiGas 20 MW SNG demo plant Gothenburg Sweden [1] Air Steam & char zone zone Fig. 3 Photo of GoBiGas demo plant [2] Gasification Gasification is a process in which a carbonaceous fuel is converted to a combustible gas. It occurs when a controlled amount of oxidant is reacted at high temperatures with available carbon in a fuel within a gasifier. It offers the possibility of conversion to heat and power (CHP), liquid fuels, chemicals or SNG. Thus, it enables biomass to contribute to all three types of renewable energy targets, i.e. heat, electricity and transport. The main chemical reactions that occur during the process are listed in Table 1. The two most suitable gasifier types for bio-SNG production are: indirect/allothermal steam blown BG technology and direct/autothermal pure O 2 blown BG technology. Both technologies produce a gas well suited to SNG production (low inerts and high hydrocarbon content). Table 2 displays typical dry gas compositions for steam and O 2 blown BG technologies. A major disadvantage of the O 2 blown BG technology is that O 2 production is expensive (cryogenic air separation) and therefore large scale plants are required (typically a few hundred MW). The sustainability of such large scale bioenergy plants is questionable. The main suppliers for the steam blown technology include: Repotec/TU Wien FICFB technology (fast internally circulating fluidised bed implemented at GoBiGas plant), Silvagas technology, ECN MILENA technology (4 MW BG-SNG demonstration plant in planning [8]), Agnion Heatpipe Reformer technology. The main suppliers for the O 2 blown technology include: Foster Wheeler pressurised CFB (circulating fluidised bed) [9] and Carbona/GTI pressurised BFB (bubbling fluidised bed). Table 1 Main gasification reactions [5, 6] Table 2 Gas compositions for steam and O 2 blown BG [7] Fig. 4 Fossil fuel based natural gas displacement by biogas in Ireland [10] Methanation The main chemical reaction is the reverse of Eq. 3.10 in Table 1 (CO + 3H 2 → CH 4 +H 2 O). A catalyst is required, typically nickel based, at the reactor conditions. The two main reactor types are: a series (typically 2-3) of adiabatic fixed beds and the isothermal BFB reactor. The Paul Scherrer Institute supplies the BFB technology. Different variations of the fixed bed technology are available from Lurgi, Haldor Topsoe (TREMP) and Foster Wheeler (VESTA). Gasification zone Combustion zone
Transcript of Seize The Digital Future · 2020-06-15 · Today’s microsurgical landscapes require advanced...
TIVATO 700 from ZEISSSeize The Digital Future
// INNOVATION MADE BY ZEISS
Transforming possibilities into realities. ZEISS TIVATO 700
1 Only for sale in selected countries. The shown contents may differ from the current status of the approval of the product or service offering in your country.
Enhance precision and efficiency in the OR
Today’s microsurgical landscapes require advanced technology capable of performing complex procedures in simple, intuitive ways. Reliable performance for all of your patients is key.
For demanding surgical applications in ENT, Spine and P&Rlook no further than TIVATO® 7001 from ZEISS, the latestAdvanced Visualization System from ZEISS. Understanding your daily workload, this fully integrated visualization system enhances usability and is built on technology ahead of its time.
During advanced surgical interventions and post-procedure workflows, ZEISS TIVATO 700 is your intelligent partner that enhances all-around performance when it is needed most.
New treatment modalities, enhanced visualization, and brilliant broadcasting of procedure in the operating room – the surgical landscape is changing at a rapid pace. Without the best tools and most intuitive technologies, your workflow can be disrupted inside and outside of the operating room (OR).
Workflow-Enhancing Visualization enables you to have state-of-the-art modalities at your fingertips. The ZEISS TIVATO 700 enables effortless use of advanced surgical visualization modalities and delivers superb image clarity for every procedure.
Visualization – enhanced.
Experience our fluorescence options.Leveraging brilliant apochromatic optics from ZEISS, now venture into new fields including the use of intra-operative fluorescence 2 options. Assess patency of vessels joined by anastomosis with ZEISS INFRARED 800. Go even further with ZEISS YELLOW 560 to visualize fluorescence-stained structures for additional clinical applications.
Visualize with 4K. Inside the OR, you can broadcast the procedure every step of the way in brilliant detail with the integrated 4K camera technology, while the large external monitor allows for easy viewing by your entire team.
Vessel patency after anastomosis with ZEISS INFRARED 800 3
Lumbar spinal tumor with ZEISS YELLOW 560 4
2 Please use the fluorescent agent as per the approval status for the application in your country.3 Image courtesy of Prof. Dr. Milomir Ninkovic, University Clinic, Bogenhausen, Germany; recorded with ZEISS OPMI PENTERO 9004 Image courtesy of Prof. Dr. Talat Kırış from LIV Hospital Cancer Center, Istanbul, Turkey
Achieve enhanced visualization during your workflow.
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Always in position to perform.
The OR is a demanding place full of activity – with multiple people and devices all inside a small room. Yet, different types of procedures require different set-ups and workflows. Every day in the OR is different and any disruption, such as elaborate rebalancing, can hinder desired clinical outcomes. Ultimate Reach & Flexibility gives you and your team the freedom to handle every OR situation with confidence. ZEISS TIVATO 700 offers excellent overhead clearance to work under the arm of the visualization system in every set-up. Position the base as your space allows and still operate comfortably with Ultimate Reach. When working with long instruments, rely on the large working distance of 200 – 625 mm to ensure continuous focus. Prepare the device with ease for daily use with convenient features like AutoBalance™ and AutoDrape®.
Flexibility – reached.
Stability reimagined.Avoid unwanted vibrations during procedures after the repositioning of the visualization system and during small movements. Experience the innovative Active Vibration Damping, strengthened by robotic movements, to streamline your surgical workflow.
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Get fully connected in your OR.
Frequently rotating OR teams require easy-to-use medical equipment with intuitive user interfaces. Integrated medical devices lead to a faster turnaround in the OR enabling more patients to be treated and improved procedural efficiency.
Go All-Digital with an easy-to-use and future-ready platform for a seamless entry into the world of fully connected visualization systems.
ZEISS TIVATO 700 offers you an intuitive graphical user interface that makes interaction with the system simple for everyone in your operating theater. It comes with a full connectivity package, including the ZEISS Connect App to digitally manage surgical data, and dedicated functionalities to integrate into an existing hospital IT infrastructure. The ZEISS Observe App enables streaming in realtime on a mobile device and ZEISS VR ONE Plus glasses. Remote connectivity, enabled by ZEISS Smart Services offers you faster support to improve availability of your device.
Digital ORs – connected.
ZEISS Connect ZEISS Observe
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Succeeding. The smart way.Smart Services from ZEISS
Be successful. With remote solutions from ZEISS.ZEISS TIVATO 700 is powered by ZEISS Smart Services, the new remote service platform from ZEISS. With this platform ZEISS strives to establish a new dimension in services. Its architecture provides a high level of IT infrastructure security and offers all stakeholders more confidence in conducting daily business. Is maintaining system availability of critical importance to you? If this is the case, you should opt for fast, qualified assistance with an OPTIME service agreement including ZEISS Smart Services.
Technical Data TIVATO 700 from ZEISS
System TIVATO 700 Basic System
Main Tubes Straight binocular Tube * * *
180° tiltable Tube – –
Foldable Tube f170/f260 –
Eyepieces 10x wide-field eyepieces
12,5x wide-field eyepieces
Focus SpeedFokus
Illumination Xenon – Fully integrated Xenon light source with automatic lamp exchange –
TriLED – Fully integrated LED light source –
Co-Observation Face-to-face with StereoBridge
Left/Right with Stereo Co-observer
XY-Movement Angular movement with joystick or foot pedal
Video System Standard HD Video Package – Fully integrated 1-chip HD camera, 1080p – – –
Premium HD Video Package – Fully integrated 3-chip HD camera, 1080p –
4K Video Package – Fully integrated 3-chip 4K camera, 2160p –
Video Options Videorecording
HD Video-In
Fluorescence** YELLOW 560 Preparation –
INFRARED 800 Preparation –
Visualization Additional Depth of Field
Networking & Storage Integrated 1TB Harddrive
Wireless Network Package – Enables WLAN and WiFi Hot Spot functionality
Shared Network Package – Storage on shared network directories
DICOM Package – Patient data exchange with PACS system via DICOM
ZEISS Smart Services Package – Connectivity for ZEISS Smart Services
Navigation Navigation Package –
* available as an additional tube** choose one, separate module necessary for activation
Basic Configurable Option
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Cochlea implantation surgery. Image courtesy of Prof. Dr. Joachim Hornung, University Clinic Erlangen, Germany (Page 2 & 8)
Spinal hemangioblastoma. Image courtesy of Prof. Dr. med. Karl-Michael Schebesch, University Clinic Regensburg, Germany (Page 5)
Decompression surgery. Image courtesy of Dr. Andreas Korge, Schoen Clinics Munich, Germany (Page 6)
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