Simulation of Battery Air Cooling Performance of Electric Vehicle by SIMCENTER AMESim

The battery thermal management system (BTMS) plays a crucial role in ensuring smooth operation and enhancing the safety and lifespan of electric vehicle battery packs. Air cooling stands out as a promising solution due to its cost-effectiveness and cooling performance. In this study, the temperature behavior of battery pack was examined by using the AMESim platform for air-cooled agent under various operating conditions of inlet temperature, cooling flow rates combined module spacing. Inlet cooling flow rate conditions varied from 0.12 kg/s to 0.28 kg/s and module spacing was from 1.0 mm - 3.0 mm. Results revealed that the highest temperature within the battery pack occurred in Module 10, reaching a maximum rise of 13.3°C, while Module 2 exhibited the lowest rising temperature at 9.26°C. At inlet air of 28 °C, the temperature issue was addressed by increasing the airflow rate to 0.24 kg/s, resulting in a notable temperature reduction of 4.7°C, down to 38.97°C (peaked temperature to below 40°C). Additionally, expanding the module spacing resulted in higher temperatures within the battery pack. These findings hold significant value for the design of air-cooling systems of electric vehicle operations, ultimately aiming to reduce energy consumption and enhance overall efficiency.