Multi-objective and topological optimization of hydro-wheel fins coupled vapor chambers
A special-shaped thermal management system of hydrothermal chamber batteries coupled with spoiler fin groups was proposed for electric vehicles(EV)to solve the problems of the high-power consumption and the low heat dissipation efficiency of traditional channel-type liquid cold plates.A multi-objective optimization method was used to analyze the fin length,the fin inclination,the distance between the center and the exit edge,and the distance between the two outlets after a basic model was determined by discussing the combination mode,arrangement position,and number of water wheel sets.the average temperature decreases 1.83℃with a standard deviation of 0.45 compared with the initial model.The comprehensive evaluation index,thermal performance factor(TPF),increases 77.8%.The results show that the fin length,the angle,the outlet arrangement,and its accessory turbulence have significant effects on the liquid cooling-plate performances.The liquid cooling-plate average-temperature further decreases 2.64℃with a temperature standard-deviation decreasing 0.206,and a TPF increasing18.9%compared with the cooling-plate without the temperature homogenization plate when the fluid-passage volume-fraction is 0.8.
electric vehicles(EV)lithium batterybattery thermal managementstructure designmulti-objective optimizationtopology optimization
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