Abstract
The depletion of non-renewable energy resources is compelling us to search and innovate for more reliable options. The reduction in the use of petroleum in the automobiles can significantly affect the use of non-renewable energy resources. In the long run, electric vehicles are the best alternatives to the conventional IC engine automobiles. In electric vehicles, lithium-ion batteries are most commonly used as an energy. During discharging, excessive heat generation inside the battery will lead to thermal runaway. To operate efficiently, these batteries should be maintained within the desired temperature range of 25 °C to 40 °C. Among the various cooling methods, in this studyair cooling is adopted. The battery pack is discharged at various constant C ratings. The effect of airflow rate on the battery surface temperature is studied with experimentation. The heat transfer coefficient is calculated by considering the average surface temperature of the battery as the wall surface temperature. The CFD analysis is done by considering the steady-state condition and boundary conditions are taken with experimental observations. Experimental results are compared with CFD results with appropriate approximations.
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