Abstract:
Reasonable and effective thermal management of batteries plays an important role in the safety and life of electric vehicles.A CFD model for a parallel air-cooled Lithium-ion battery pack is developed to investigate the cooling effect of the thermal management system.The effects of the inflow air velocity and temperature on the maximum temperature (
Tmax) and temperature difference (Δ
T) are analyzed.The temperature results are explained by the velocity field.Based on these,the geometry of the original model is modified so as to increase the utilization ratio of space.The results in our study show that the maximum temperature and temperature difference increase with the increase of cell distance.The maximum temperature decrease significantly when deviation angle
θ is changed and the maximum temperature difference decrease with the growth of plenums' plate angle
ω.The distribntion of temperature field of the optimized model is more reasonable.