Shape optimization of plenums in parallel air-cooled battery thermal management system

被引：0
|
作者：
Chen K. [1 ]
Hou J. [1 ]
Chen Y. [1 ]
Wang S. [1 ]
机构：
[1] Key Laboratory of Enhanced Heat Transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou
来源：
Huagong Xuebao/CIESC Journal | 2020年 / 71卷
关键词：
Air-cooled system; Heat transfer; Numerical simulation; Optimal design; Plenum shape;
D O I：
10.11949/0438-1157.20200484
中图分类号：
学科分类号：
摘要：
In electric vehicles, a battery thermal management system is essential to guarantee the safety of the battery pack. In the present study, an optimization method is developed to design the shape of the divergence and convergence plenums in an air-cooled battery thermal management system (BTMS) with parallel channels. The control points are used to describe the plenum shape, and the numerical simulation method is introduced to evaluate the performance of the BTMS. The height distribution of the control points is adjusted one step by one step, with the target of minimizing the temperature difference of the battery pack. Finally, the designed plenum shape is obtained according to the optimized height distribution of the control points. The results of typical cases show that the heat dissipation performance of the air-cooled BTMS with Z-type flow can be significantly improved after the plenum shape optimization using the proposed optimization method. Compared with those in the original system, the maximum temperature of the battery pack in the optimized system is more than 3.7 K lower, and the temperature difference is reduced by more than 85%, while the pressure drop of the system is only increased by 20% under different inlet flow rates. Compared with those in the optimized system in the literature, the temperature difference of the battery pack in the present optimized system is reduced by more than 48% without increasing the pressure drop. © 2020, Editorial Board of CIESC Journal. All right reserved.
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页码：55 / 61
页数：6
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