Numerical Study on Heat Transfer Characteristics of Dielectric Fluid Immersion Cooling with Fin Structures for Lithium-Ion Batteries

Electric vehicles (EVs) are incorporated with higher energy density batteries to improve the driving range and performance. The lithium-ion generate a larger amount of heat which deteriorates their efficiency operating life. currently commercially employed cooling techniques not able achieve effective thermal management increasing density. Direct liquid offers enhanced battery packs at high discharging rates compared all other techniques. However, flow distribution coolant around module needs be maintained superior performance direct cooling. objective present work is investigate transfer characteristics pack dielectric fluid immersion for different fin structures. base structure without fins, circular, rectangular triangular structures maximum temperature, temperature difference, average Nusselt number, pressure drop evaluation criteria (PEC). Furthermore, evaluated various dimensions best structure. according considered simulated using ANSYS Fluent commercial code. results reveal that symmetrical uniformity achieved in case lower by 2.41%, 2.57% 4.45% rectangular, structures, respectively, shows values number value PEC optimum further improved length -to -height ratio (A/B) 4.304. research outputs from could referred as database commercialize efficient system fast charging/discharging rates.