Abstract:
Battery Thermal Management system (BTMS) is critical in achieving
performance and extended life of batteries in electric vehicle (EV) under real driving
conditions. In this work, the impact of cooling strategies using liquid which is water
and refrigerant (R134-A) were investigated. Liquid cooling system are more effective
in heat transfer and take up less volume than air cooling system. A cooling system of
battery which efficiently cools a high voltage battery is mounted in an electric vehicle
is necessary to maintain the battery performance. The cooling system can be done
by using a refrigerant cycle of an air-conditioning system which is provided with an
electric compressor outside heat exchanger and control device. Appropriate modeling
for predicting thermal behavior of battery system in vehicles help to make decision for
improved design and shorten the development process. Results of Computational
Fluid Dynamic (CFD) Fluent model simulation implied that 3D cell model are important
for the improved prediction of battery thermal behaviors. The better and suitable
cooling system was chosen by making comparison between the water cooling system
and R134-A cooling system based on the maximum temperature of the battery pack.
