摘要
基于工质相变换热和热虹吸原理,设计了一种动力电池热管理冷热双工况循环系统,系统无泵运行。针对某款17Ah锂电池,通过试验,测试了该系统的换热效果。试验结果表明:该热管理系统能实现电池箱的温度管理。加热工况下,多组试验的电池箱换热功率相差为1.2%~3.8%,电池箱的升温效果较好。散热工况下,系统散热功率在电池温度为70℃时达到最大,其值为88.4 W。且冷凝器侧强制风冷散热与自然散热相比,能将系统散热功率提高10.0%~63.9%。
Based on the principle of phase change heat transfer and thermal siphon of the refrigerant,a power battery thermal management system with hot and cold double working conditions was presented,and the system did not require a pump to drive.For the certain 17 Ah lithium battery,the heat exchange efficiency of the designed thermal management system was tested through experiment.The results show that the system can realize the operation switching management of cooling and heating two-way modes based on high or low temperatures.Under the heating condition,the power difference of the battery box in many groups of experiments is 1.2%to 3.8%,and the heating performance of thermal management system of the battery box is better.Under the cooling condition,the system cooling power reaches the maximum of 88.4 W at the battery temperature of 70℃.Compared with natural cooling,the condenser forced air cooling can increase the cooling power by 10.0%~63.9%.
作者
米国强
徐红玉
梁坤峰
李亚超
王莫然
MI Guoqiang;XU Hongyu;LIANG Kunfeng;LI Yachao;WANG Moran(Vehicle&Transportation Engineering School,Henan University of Science&Technology,Luoyang 471003,China;Civil Engineering School,Henan University of Science&Technology,Luoyang 471003,China)
出处
《河南科技大学学报（自然科学版）》
CAS
北大核心
2021年第2期23-29,M0003,M0004,共9页
Journal of Henan University of Science And Technology:Natural Science
基金
国家自然科学基金项目(U1304521,51706060,51876055)
河南科技大学创新团队基金项目(2015XTD004)。
关键词
动力电池
热管理
相变换热
热虹吸
双工况循环
power battery
thermal management
phase change heat transfer
thermal siphon
double working conditions
