增设通风孔的风冷式锂离子电池热管理系统数值研究
收稿日期: 2015-10-13
修回日期: 2015-11-16
网络出版日期: 2015-12-30
基金资助
科技部国际合作项目（2013DFG60080）
Numerical Investigation of Air-cooled Cylindrical Lithium-ion Battery Thermal Management System with Vent
Received date: 2015-10-13
Revised date: 2015-11-16
Online published: 2015-12-30
张新强 , 洪思慧 , 汪双凤 . 增设通风孔的风冷式锂离子电池热管理系统数值研究[J]. 新能源进展, 2015 , 3(6) : 422 -428 . DOI: 10.3969/j.issn.2095-560X.2015.06.003
The optimum design of battery thermal management system helps maintaining the high efficient performance of power battery, which will contribute to the development of the electric vehicle industry. In this research, a CFD model for an air-cooled battery pack with vent is developed to investigate the thermal performance of battery during discharging. It’s found that the additional vent can significantly improve the cooling performance of the entire battery pack. Temperature rise and temperature difference of the battery pack reach the lowest when the vent is opened at the opposite of the outlet. Moreover, the best cooling performance is achieved as the area of the vent equals to that of the outlet. However, continuously increasing the area of the vent makes little difference on improving the cooling performance. The effects of the inlet air temperature and the volume of the cooling channel on the thermal performance of lithium-ion battery pack are also investigated. Opening multiple vents in the battery pack enable to the optimum design on the cooling capability of the battery thermal management system.
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