Cooling System Optimization on Battery Pack of Electric Vehicle Muhammad Adnan Naufal ; Dr. Eng. Bentang Arief Budiman ; Poetro Lebdo Sambegoro, M.Sc., Ph.D
Bandung Institute of Technology
Abstract
Batteries as the power source of electric vehicle have advantages in form of sustainability and efficiency. However, electric vehicle has major drawbacks that unmatched the performance of internal combustion engine vehicle (ICEV), which are the limited driving range and the long charging time. To match the performance of ICEVs that can provide a long driving range, EVs need high-power, high-energy battery packs that are able to withstand high discharging rates which can increase the surface temperature faster. With the optimal operating temperature of Li-ion batteries ranging from 25˚C to 40˚C, a battery thermal management system (BTMS) is very crucial to maintain the temperature of batteries at the optimal operating temperature that can enhance the performances of EV. Different battery thermal management system which focus on air cooling strategy by changing the configuration of the inlet and the outlet of the air flow and the utilization of forced convection in terms of using fan are investigated to achieve the optimum cooling strategy. Computational fluid dynamics method is used to investigate the thermal characteristics of the battery pack. The temperature profile of the battery pack is examined using transient simulation. The results of the method expressed that the cooling strategy of inlet and outlet located on the different sides and the utilization of fan can optimize the cooling performance of battery pack.
Keywords: Battery Thermal Management System, Air Cooling Strategies, CFD
