Multi-objective and topological optimization of hydro-wheel fins coupled vapor chambers

doi:10.3969/j.issn.1674-8484.2024.02.009

Abstract

Abstract:

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.

Key words: electric vehicles (EV), lithium battery, battery thermal management, structure design, multi-objective optimization, topology optimization

CLC Number:

U467.14

LI Longhui, ZHANG Furen, HUANG Zhikai, LI Xue, ZHAO Haodong, SHI Yazhou, SUN Shizheng, ZHAO Haibo. Multi-objective and topological optimization of hydro-wheel fins coupled vapor chambers[J]. Journal of Automotive Safety and Energy, 2024, 15(2): 208-217.

Figures/Tables 17

References 29

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物质	比热容，c_p	导热系数， k	动力粘度，μ	密度，ρ·
物质	kJ·kg^-1·K^-1	W·m^-1·K^-1	mPa·s	kg·dm^-3
铝	0.871	202.4	-	2.719 0
水	41.882	0.6	1.003	0.998 2

物质	比热容，c_p	导热系数， k	动力粘度，μ	密度，ρ·
物质	kJ·kg^-1·K^-1	W·m^-1·K^-1	mPa·s	kg·dm^-3
铝	0.871	202.4	-	2.719 0
水	41.882	0.6	1.003	0.998 2

C	I / A	Q_V / (kW·m^-3)	Q_A / (kW·m^-2)
1	15	15.9	0.287
2	30	42.9	0.771
3	45	80.9	1.454
4	60	129.7	2.334
5	75	189.6.	3.412

C	I / A	Q_V / (kW·m^-3)	Q_A / (kW·m^-2)
1	15	15.9	0.287
2	30	42.9	0.771
3	45	80.9	1.454
4	60	129.7	2.334
5	75	189.6.	3.412

范围	设计变量
范围	X₁, (D₁/ mm)	X₂, (D₂/ mm)	X₃, (α / (°))	X₄, (L / mm)
上限	45.75	64	60	9
初值	29.00	32	40	5
下限	15.25	0	30	4