Numerical study on solid–liquid phase change in paraffin as phase change material for battery thermal management

作     者：Qiannan Zhang Yutao Huo Zhonghao Rao 

作者机构：School of Electric Power Engineering China University of Mining and Technology Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education Southeast University 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2016年第61卷第5期

页      面：391-400页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(51406223) 

主　　题：Phase change material Battery thermal management Solid–liquid phase change Heat flux Thermal conductivity 

摘      要：With the large latent heat and low cost, the paraffin has been widely used in battery thermal management(BTM) system to improve the efficiency and cycling life of power battery. The numerical model of paraffin melting in a cavity has been established, and the effects on the solid–liquid phase change process have been investigated for the purpose of enhancing the heat transfer performance of paraffin-based BTM system. The results showed that the location of the heating wall had great effects on the melting process. The paraffin in the cavity melted most quickly when the heating wall located at the bottom. Furthermore, the effects of thermal conductivity and the velocity of the slip wall have been considered. The gradient of liquid fraction increased with the increase in thermal conductivity, and the melting process could be accelerated or delayed by the slip wall with different velocity.