A Schematic Design and an NDT Approach for a Radiator ... · the utilization of CuO - water nano...

International Journal of Engineering and Techniques - Volume 4 Issue 2, Mar – Apr 2018

ISSN: 2395-1303 http://www.ijetjournal.org Page 486

A Schematic Design and an NDT Approach for a

Radiator Tubes Using Nano fluids Vodnala Veda Prakash

1, S. Chakradhara Goud

2

1(Department of Mechanical, Research Scholar ,Shri JJT University, Rajasthan)

2 (Prof. & Principal, Moghal College of Engineering & Technology,Hyderabad)

I. INTRODUCTION

CFD is a science that can be useful for

concentrate liquid stream, warm exchange,

substance responses and so forth by comprehending

scientific conditions with the assistance of

numerical investigation. CFD (Computational

liquid flow) utilizes an extremely basic rule of

settling the whole framework in little cells or

lattices and applying overseeing conditions on these

discrete components to discover numerical

arrangements with respect to weight conveyance

temperature inclinations, stream parameters and so

forth in a shorter time at a lower cost as a result of

decreased required test work. Car Radiator are

ending up profoundly control stuffed with

expanding energy to weight or volume proportion.

Expanded request on control pressed radiators,

which can disperse most extreme measure of

warmth for any given space. Nano liquids give

higher warmth exchange rate than base liquids. This

examination includes CFD reenactment of the mass

stream rate of Nano liquid and warmth exchanger

(radiator) at different coolants (Nano liquids). In

this paper, CFD used to reenact stream and warmth

exchange radiator (warm exchanger). Coolants

course through the containers of the radiator, warm

is exchanged through tube viders to the air by

conduction and convection. The radiator of auto is

examined to get warm exchange rate at various

volume parts and coolants in this examination. CFD

investigation gives precise and correct outcome.

Warmth is made when the gas and air blend is

touched off in the ignition chamber. This blast

makes the cylinder be constrained down inside the

motor, levering the associating bars, and turning the

crankshaft, making power. Metal temperatures

around the burning load can surpass 538°C. With a

specific end goal to keep the overheating of the

motor oil, chamber dividers, cylinders, valves, and

different parts by these outrageous temperatures, it

is important to successfully discard the warmth.

Roughly 1/3 of the warmth in ignition is changed

over into energy to drive the vehicle and its extras.

Another 1/3 of the warmth is taken away into the

environment through the fumes framework. The

rest of the 1/3 must be expelled from the motor by

the cooling framework The utilization of nano

fluids can possibly enhance the motor cooling rates.

RESEARCH ARTICLE OPEN ACCESS

Abstract: The headway in vehicle innovation is expanding every day. The proficiency of the motor relies upon

warm exchange rate of radiator in vehicle and further it transfers on stream limit of liquids and material utilized as

a part of assembling of radiator. For the most part water is utilized as cooling liquid in car. The scientists were

focused on various materials and found that copper and aluminum materials demonstrate a higher warmth

exchange rate contrast with different materials. The stream limit and warmth retention of the liquid can be

enhanced with the expansion of Nano added substances in radiator. In the present work the execution of the

radiator is broke down with various Nano liquids utilizing CATIA and ANSYS. Thus the present work is arranged

in like manner. Diverse Nano liquids Cu, Fe, Au, Ag for volume division 0.3, are blended with base liquid water

are broke down for their execution in the radiator. Displaying of the radiator is done in CATIA. The liquid stream

qualities are discovered utilizing CFD examination and with a similar warm investigation are done in ANSYS.

Keywords — Heat Transfer co efficient, Heat Transfer Rate, Nano fluid and Radiator Tubes.



These upgrades can be utilized to evacuate motor

warmth with a diminished size cooling framework.

Littler cooling framework prompts utilization of

littler and lighter radiators which thusly will prompt

better execution and expanded productivity.

2.0 OBJECTIVES:

1. To know the preparation of NDT

APPORACH FOR A RADIATOR TUBES USING

NANO FLUIDS

2. To study the applications of NDT

APPORACH FOR A RADIATOR TUBES USING

NANO FLUIDS

3. To understand the properties such as

mechanical, electrical and thermal properties of

NDT APPORACH FOR A RADIATOR TUBES

USING NANO FLUIDS

4. To study the usage of NDT APPORACH

FOR A RADIATOR TUBES USING NANO

FLUIDS

3.0 LITERATURE REVIEW:

V. L. Bhimani et.al, [1] tentatively explored

constrained convective warmth move in a water

based nano fluid. Five unique groupings of nano

fluids in the scope of 0.1-1 vol. % have been

utilized with stream rate in the scope of 90-120

lit./min. The outcome demonstrates that warmth

exchange upgrade of 40-45% contrasted with

unadulterated water at the centralization of 1% vol.

Gaurav Sharma et al. [2] tentatively researched

the warm conductivity and thickness of Al2O3-

motor Nano-coolant. For 0.5% vol. convergence of

Al2O3 nano fluid at 40ºC The most extreme

enhanced warm conductivity is 5.7% and the

improvement in consistency is 124%.

Adnan M. Hussein et al. [3] tentatively explored

the grinding factor and constrained convection

warm exchange improvement utilizing SiO2 nano

particles suspended into water. Four distinct

centralizations of nano fluids in the scope of 1 to 4 %

(Vol.) with changed stream rate from 1 to 5 lpm

have been utilized. The most extreme estimation of

rubbing factor was expanded to 22% and a most

astounding estimation of the warmth exchange

coefficient improves upto 40% for SiO2 nano

particles with 4% volume fixation.

Rahul A.Bhogare et.al. [4] outlined a survey on

application and difficulties of nano-liquids as

coolant in car radiator. Nano fluids can possibly

enhance car and substantial – obligation motor

cooling rates by expanding the productivity,

bringing down the weight and decreasing the

intricacy of warm administration

Chavan D.K. et.al, [5] Outlined the investigation,

examination and plan of vehicle radiator proposed

withdrawing and geometrical model of the fan. He

explored that speed increments with the expansion

in rpm of radiator fan. So he inferred that for ideal

proficiency disposes of corners and create radiator

of roundabout shape.

Deepak Chintakayala et.al, [6] considered the

cooling impact by utilizing a nano fluid as a coolant

in a radiator and is examined for assessing the

liquid stream and warmth exchange qualities. This

examination is broke down by utilizing a CFD

programming FLUENT. It is obviously watched

that misfortune in temperature for traditional

coolant is 17°C and for nano fluid as coolant it is

20ºC. From his investigation he presumed that the

rate of warmth exchange is better when nanofluid

(Al2O3 + water ) is utilized as coolant than

ordinary coolant.

Navid Bozorgan et.al, [7] numerically explored

the utilization of CuO - water nano fluid as a

coolant in a radiator at Chevrolet rural diesel motor

with a given warmth exchanger limit. The outcomes

demonstrated that for CuO-water nano fluid at 2 %

volume fixation coursing through the level tubes

with Re - 6000 while the car speed is 70 km/hr , the

general warmth exchange coefficient and pumping

power are around 10 % and 23.8 % more than that

of base liquid for given conditions.

Paresh Machhar et.al, [8] tentatively examined

the warmth exchange upgrade of vehicle radiator

with TiO2/water nano fluid. Five unique

centralizations of nano fluids in the scope of 0.1-1

volume % will be set up by the expansion of TiO2

nano particles into the water. He saw from

examination that the utilization of nano fluid with

low focus can improve warm exchange proficiency

up to 45 % in correlation with unadulterated water.

Ravikanth S.Vajjha et.al, [9] examined a three

dimensional laminar stream and warmth exchange

with two diverse nano fluids Al2O3 and CuO nano

particle in an ethylene glycol and water blend

circling through the level containers of a vehicle



radiator. The numerical outcomes appeared at a

Reynolds number of 2000, the rate increment in the

normal warmth exchange coefficient over the base

liquid for a 10% Al2O3 nano fluid was 94 % and

that for a 6 % CuO nano fluid was 89 %.The

normal skin grating coefficient for a 6% CuO nano

fluid in the completely created locale is around 2.75

times in contrast with that of the base liquid at a

steady channel speed of 0.3952 m/s.

Shen et.al, [10] with the headway of

nanotechnology, a coolant are designed which is

known as "nano fluids". The Researchers found that

these liquids offer higher warm conductivity

contrasted with that of ordinary coolants. The

investigation is centered on the execution

assessment of the louvered balance based tube car

radiator utilizing nano fluids as coolant. The

minimized radiator is fundamentally utilized as a

part of car vehicles. In the present work, important

info information, nano fluid properties and

experimental connections is taken from past

writings and is examined the liquid stream and

cooling limit attributes of a smaller car radiator

worked with the utilization of nano liquid like Si C

based liquid.

4.0 MATERIALS AND METHODS:

Design specifications

Size of the radiator =500mmx100mm

Diameter of the tube (o.d)=12.5mm

Diameter of the tube (i.d)=10mm

No. of tubes=20

Height of the radiator=460mm

Material used for tubes= Aluminum

Fluid=water

Physical Properties

Density: 2.7 g/cm3

Melting Point: Approx 580°C

Modulus of Elasticity: 70-80 GPa

Poissons Ratio: 0.33

Modeling:

Modeling:

Figure 1 : Modification of tube design with

single stress node

Assumptions in CFD:

The physics of conjugate heat transfer in radiator is

simplified with the following technically valid

assumptions.

• Velocity and temperature at the entrance of the

radiator core for air and coolant is uniform.

• No phase change occurs in fluid streams.

• Fluid flow rate is uniformly distributed through

the core in each pass on each fluid side. No flow

leakages occur in any stream. The flow condition is

characterized by the bulk speed at any cross section.

• The thermal conductivity of the solid material is

constant.

• No internal source exists for thermal-energy

generation

• Properties of the fluids and the wall, such as

specific heat, thermal conductivity, and density


ISSN: 2395-1303 http://www.ijetjournal.org 89

are only dependent on temperature. 5.0

RESULTS

Figure 2 shows meshing of tube elements

Figure 3 shows the thermal flow of hot fluids

and inlet temperature contours

Figure 4 shows the transient flow of liquid in

the radiator

Figure 5 shows the cooling ability with

temperature contours in tubes

Figure 6 shows the outlet flow heat flux

generation in tubes



Figure 7 shows internal flaws of radiator tubes

Figure 7 shows transient thermal analysis and

temperature regions

Figure 8 shows heat transfer analysis

6.0 CONCLUSIONS AND DISCUSSIONS: From the above analysis the findings of tangential

flow in radiator tubes by taking water as porus

medium the maximum and minimum values

obtained are 0.7605e0 and0.1277e

01respectctively.

The heat and cooling losses obtained in the case 1

taken into consideration and the practical outputs

are verified in the next case with NDT application

to get optimum result.

REFERENCES

1) V. L. Bhimani et.al, {2007} „Heat transfer and

pressure drop correlations for the multi-louvered fin

compact heat exchangers, Energy Conversion and

Management, Vol. 48, pp.1506-1515.

2) Gaurav Sharma et al. {2012} „Numerical Study of

Fluid Dynamic and Heat Transfer in a Compact Heat

Exchanger Using Nanofluids‟, ISRN Mechanical

Engineering , Vol.2012, Article ID 585496.

3) Adnan M. Hussein et al. {2004} „A new thermal

conductivity model for nanofluids‟, Journal Nano

particle Research, Vol. 6, pp. 577-588.

4) Rahul A.Bhogare et.al. {2010} „Performance

investigation of an automotive car radiator operated with

nanofluid – based coolants (nanofluid as a coolant in a

radiator)‟, Applied Thermal Engineering, Vol. 30, pp.

2685-2692.

5) Chavan D.K. et.al, [5] {2011} „Improving the

cooling performance of automobile radiator with

Al2O3/water nanofluid‟, Applied Thermal Engineering,

Vol. 31, pp. 1833-1838.



6) Deepak Chintakayala et.al, {2012} „Preformance

of flat fin tube automotive radiator using nanofluids as

coolants, Emerging trends in mechanical engineering

ETME 422-429.

7) Navid Bozorgan et.al,[{2010} „Finned tube

performance evaluation with nanofluids and

conventional heat transfer fluids‟, International Journal

Thermal Sciences, Vol. 49, pp. 580-588.

8) Paresh Machhar et.al, {2010} „Numerical Study of

fluid dynamic and heat transfer performance of Al2O3

and Cu O nanofluids in the flat tubes of a radiator‟,

International Journal Heat fluid Flow, Vol. 31, pp. 613-

621.

9) Ravikanth S.Vajjha et.al,{2013} „CFD analysis of

fluid flow and heat transfer of an automotive radiator

with nanofluid‟, Auto Vertical, L& T IES.

10) Shen et.al,{2014} „Heat transfer enhancement

using nanofluids in an automotive cooling system‟,

International communications in heat and mass transfer

Vol. 53, pp. 195-202.

A Schematic Design and an NDT Approach for a Radiator ... · the utilization of CuO - water nano...

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