基于同心圆结构的新型液冷板优化设计及其性能研究

doi:10.19562/j.chinasae.qcgc.2023.11.007

Abstract

Abstract:

To improve the comprehensive performance of the battery thermal management system， a liquid-cooled plate with concentric circular structure channels is proposed in this paper. Firstly， the influence of the number and width of annular channels on the comprehensive performance of the liquid-cooled plate is discussed by using the control equation， and the optimal number and width of annular channels are selected by comprehensive evaluation indexes. Then， in order to reduce the pressure drop of the liquid-cooled plate to a greater extent， some of the curved section channels are straightened， and the angle of the straight section channels and the circle center distance are optimized. Compared with the initial model， the pressure drop of the optimal model is reduced by 62.83 Pa （67.61%） and the temperature is reduced by 1.1 ℃. Finally， in order to further improve the cooling performance of the system， nanofluids of different types and volume fractions are introduced as cooling media based on the optimal model. Compared with pure water， better overall performance can be obtained by using nanofluids as cooling media at low Reynolds number， and the overall evaluation index can be improved by up to 16.19%， with significant results.

Key words: liquid cooling plate, concentric circles, nanofluid, battery thermal management system

Xinglong Lu,Furen Zhang,Haibo Zhao,Shizheng Sun,Xue Li,Haodong Zhao. Optimized Design and Performance Study of New Liquid Cooling Plate Based on Concentric Circle Structure[J].Automotive Engineering, 2023, 45(11): 2058-2069.

Figures/Tables 24

参数	铝	水
比热容/ $(J ? k g - 1 ? K - 1)$	871	4 182
导热系数/ $(W ? m - 1 ? K - 1)$	202.4	0.6
动力黏度/ $(P a ? s)$		0.001 003
密度/ $(k g ? m - 3)$	2 719	998.2

参数	$ρ / (k g ? m - 3)$	$C p / (J ? k g - 1 ? K - 1)$	$k / (W ? m - 1 ? K - 1)$	$μ / (P a ? s)$
H₂O	998.2	4 182	0.6	0.001 003
Al₂O₃	3 880	733	36
CuO	6 500	540	18
TiO₂	4 250	686	8.9
Fe₃O₄	5 180	104	17.65

References 27

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设备	型号	参数
直流电源	SS-1003	电压：0~60 V；电流：0~5 A；功率：300 W
PT100热电阻	STWZP-010	温度范围：-50~260 ℃；精度：±0.1 ℃
自动蠕动泵	DIPump550	流量范围：0~670 mL/min
无纸温度记录仪	MIK-R6000C	采样周期：1 s
恒温水浴锅	HH-4	控温精度：≤±1 ℃
玻璃转子流量计	LZB-3WB	测量精度：±0.35%
热电阻	PT100	测量范围：-200-600 ℃；精度：0.2%FS
恒温箱	HWJS-150	温度范围：-20-150 ℃；精度：±0.5℃

质量流量/（g·s^-1）	实验结果/℃	模拟结果/℃	误差/%
0.5	39.23	37.75	3.76
1	30.77	31.55	2.53
1.5	28.96	29.61	2.24
2	28.14	28.67	1.89

Optimized Design and Performance Study of New Liquid Cooling Plate Based on Concentric Circle Structure

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References 27

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