IRJET- Parametric Study on Radiator Test Rig

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 05 Issue: 03 | Mar-2018 www.irjet.net p-ISSN: 2395-0072
© 2018, IRJET | Impact Factor value: 6.171 | ISO 9001:2008 Certified Journal | Page 667
Parametric Study on Radiator Test Rig
Dr. K. Arasu1, Vajravel. S 2, Vivek. K3, Vignesh. T4
1 Department of Mechanical Engineering, Bannari Amman Institute of Technology,
Sathyamangalam, Erode
2, 3, 4 BE – Department of Mechanical Engineering, Bannari Amman Institute of Technology,
Sathyamangalam, Erode
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Abstract -This test system is designedtotestperformance
of Radiators under various air and hot water flow
rate conditions. Automotive engine produce extra heat
during engine operation. Automotiveengine cooling system
regulates engine surface temperature for optimum
efficiency. Recent advancement in engine for power forced
engine cooling system to develop new strategies to improve
its performance efficiency and to reduce fuel consumption
along with controlling engine emission to mitigate
environmental pollution norms. Automobile radiator
test rig is designed to evaluate the performance of
automobile radiator.
1.INTRODUCTION
Radiators are heat exchangers used to transfer thermal
energy from one medium to another for the purpose of
cooling and heating. The majority of radiators are
constructed to function in automobiles, buildings, and
electronics.
The thermal performance of an automotive radiator
plays an important role in the performance of an
automobiles cooling system and all other associated
systems. For a numberof years, this componenthassuﬀered
from little attention with very little changing in its
manufacturing cost, operation and geometry. The radiator is
always a source of heat to its environment, although this
may be for either the purpose of heating this
environment, or for cooling the fluid or coolant supplied
to it, as for engine cooling. Despite the name,mostradiators
transfer the bulk of their heat via convection instead of
thermal radiation. Spacecraft radiators necessarily must use
radiation only to reject heat.
2. LITERATURE REVIEW
Priti Pramod Bodkhe and JP Yadav, Mechanical
Department MITCOE Punein their studies, also presented
parametric studyon automotiveradiator.Intheperformance
study evaluation, radiator is installed into a setup. The
various parametersincluding mass flow rate of cooling, inlet
coolant and temperature are varied. Dittus, W.,& Boelter ,
Pioneers in Heat Transfer in Automobile Radiator of
Tubular type the conclusion of their studies shows the
heat transfer increases with nanoparticles volume
concentration in the sub channel geometry .Thehighestheat
transfer rates are detected, for each concentration
corresponding to the higher Reynolds number. John R
Howell, The History of Engineering Radiation in Heat
Transfer his research has centered on developing
solution techniques for radioactive transferinparticipating
media , solution of highly non-linear combined mode heat
transfer problems and most recently inverse design and
control of thermal system with combined –mode (non –
linear) heat transfer. Ying Gaun, Hongjiang Cui, MinghaiLi,
Carried work on engine cooling system with heat load
averaging capacity using passive heat load accumulator.
Heat load accumulator is phase change material which
stores heat generated during peak and dissipates stored
heat during reduced heat load condition this is achieved by
sacrificing phase change of PCM from solid to liquid or
vice versa. This leads to compact heat exchanger for same
heat rejection. Also it reduces load on cooling system.
3. EXPERIMENTAL SETUP OF TEST RIG
Fig. 1 Schematic representation of experimental setup
2.1. DESCRIPTION OF COMPONENTS:
a) Automobile Radiator
Radiators are used for cooling internal combustion
engines, mainly in automobiles but also in piston-engine
aircraft, railway locomotives, motorcycles, stationary
generating plants and other places where such engines are
used.
To cool down the engine, a coolant is passed
through the engine block, where it absorbs heat from the
engine. The hot coolant is then fed into the inlet tank of

the radiator (located either on the top of the radiator, or
along one side), from which it is distributed across the
radiator core through tubes to another tank on the opposite
end of the radiator.
Fig. 2 Radiator
b) Cooling Fan
The cooling system is made up of the passages inside
the engine block and heads, a water pump to circulate
the coolant, a thermostat to control the temperature of
the coolant, a radiator to cool the coolant, a radiator cap
to control the pressure in the system, and some
plumbing consisting of interconnecting hoses.
Fig. 3 Cooling fan
c) Water Pump
Car's water pump is the key to making the entire
system work. It is an impeller pump and is usually buried
under the timing belt cover on the side of the engine.
Blades on the pump force coolant to flow throughtheengine
and back to the radiator to be cooled by a forced air cooling
fan.
Fig. 4 Water Pump
3. EXPERIMENTATION
We need to evaluate the performance of an automobile
radiator using a radiator test rig and temperature sensors
1. Fill the reservoir with water up toindicated maximum
level.
2. Switch on the main power supply and then switch on
the heating element
3. Allow the water to get heated up to 60-900C.
4. Switch on the fan and the power.
5. Note down the electricity consumed by fan and pump
by energy meter provided in control panel
6. Note down the discharge of water from the water
meter(L/min).
7. Note down the inlet temperature Twith the help of
thermometer.
8. Note down the outlet temperature Twith the help of
thermometer.
9. Note down the inlet and outlet temperatures by
varying the pump discharge
4. EVALUATION
The radiator test rig is developed in the thermal laboratory.
The radiator heat transfer rate is analyzed for various mass
flow rates of hot and cold fluid. Their heat transfer rate is
summarized in the above table and their behavior is
expressed with the help of overall heat transfer coefficient.
5. ADVANTAGES
1. Easy to find the inlet and outlet temperatures of the
fluids used in the radiators.
2. This radiator testing rig is very compact for using and
easily transported from one place to another.
3. It is cost efficient.
4. If any damage occurs the parts of the testing rig can
be easily replaced.

5. Compared to other radiator testing rigs it is less in
weight.
3. CONCLUSIONS
Thus we are coming up with result that the Radiator
testing rig of compact size and cost efficient is used to
test the radiator performance by monitoring input and
output temperatures in small scale. We are going to
eliminate the difficulties in measuring the performance of
the radiators.
REFERENCES
[1] Performance investigation of Automobile Radiator
operated with Nano fluids base coolant
Priti Pramod Bodkhe, Mechanical department, MITCOE
Pune.
[2] Dittus,W, and BoelterPioneers in heat- transfer –
Heat transfer in Automobile Radiator of the
tube type (Reprinted, L.M.K. from University of
California Publication in Engineering Volume
2, Pg443-461,1930).
[3] John R Howell, The History of Engineering Radiation
Heat transferDiscovery (2002).
[4] Dittus, W., &Boelter,L.M.K (1930). Heat transfer in
Automobile Radiator of the Tubular Type, 2(13) 443-
461, University of California, Berkeley, CA, United
States.
[5] Ying Gaun, HongjiangCui,Minghai Li, The Thermal
Performance Study of Automobile Tube-Core-fin
Radiator in 2010 WASE International Conference on
information Engineering(2010).

IRJET- Parametric Study on Radiator Test Rig

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