摘要
有机相变材料(PCM)具有较大的潜热、较小的体积变化和良好的化学稳定性,对其在电池热管理方面及能量储存方面的研究越来越多.从提高电池的循环寿命和电动汽车的安全性考虑,通过数值模拟及可视化实验研究用于18650动力电池热管理的PCM特性.通过计算模拟石蜡在熔化过程中熔化界面随时间的变化过程以及电池的温升特性,确定关键相变时刻.比较铝制金属套筒和亚克力套筒两种情形,结果表明套筒材料会影响相变材料的熔化特性.
Due to the high latent heat,small volume change and excellent chemical stability of organic phase change materials（PCM）,studies of PCM applications on battery thermal management and energy storage are increasing recently.Considering extending the cycle life of battery and enhancing the safety of the electric vehicle,the thermal management characteristics of 18650 power battery based on PCM was investigated by numerical simulation and visualization experiment.The simulation shows that the evolution of the melt interface with time during the melting process and temperature rise characteristic of the paraffin,the critical phase transitions moment was determined.The two different housing materials between aluminum metal and acrylic sleeves were compared and studied,the result shows the sleeve materials can affect the melting characteristic of PCM.
作者
杨欢
张恒运
隋杨
吴青余
YANG Huan;ZHANG Hengyun;SUI Yang;WU Qingyu(School of Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China)
出处
《上海工程技术大学学报》
CAS
2018年第1期8-14,共7页
Journal of Shanghai University of Engineering Science
基金
上海市科委重点资助项目(14520501100)
上海高校东方学者资助项目(A2-B-8938-13-0302)
关键词
动力电池
相变
数值仿真
可视化
对流
power battery
phase change
numerical simulation
visualization experiment
convection
