热电池激活过程开路电压数值仿真方法  

Numerical simulation method for open-circuit voltage of thermal battery in activation process

作　　者：王超[1] 杨兆堂[1] 兰伟[1] 刘效疆[1] 崔益秀[1] WANG Chao;YANG Zhao-tang;LAN Wei;LIU Xiao-jiang;CUI Yi-xiu(Institute of Electronic Engineering, China Academy of Engineering Physics,Mianyang sichuan 621900 ,china)

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《电源技术》2018年第5期697-698,712,共3页Chinese Journal of Power Sources

摘　　要：探讨了一种基于ANSYS FLUENT的热电池激活过程数值仿真方法,可实现对该过程热分布和开路电压曲线的预测,搭建的仿真模型考虑了点火头、引燃条、加热片的顺序燃烧放热和电解质的吸热熔融过程,能够较为精确地表征热电池激活过程热分布特性。基于热分布仿真结果,通过加载单体电池开路电压随温度的变化曲线,实现对热电池激活过程开路电压的预测。经与实测结果比较,发现该仿真方法具有较高精度。Based on ANSYS FLUENT, a numerical simulation method for the activation process of thermal battery was discussed, and the method could be applied to predict the heat distribution and open-circuit voltage of thermal battery in the activation process. The sequenced combustion and heat releasing of igniter, pyrotechnic cylinder and pellet and the melting process of electrolyte were considered in the simulation model to accurately exhibit the heat distribution characteristics of thermal battery in the activation process to some extent. Based on the simulation results of heat distribution, the model can predict the open-circuit voltage of thermal battery in the activation process by loading the open-circuit voltage curve of single cell thermal battery along with temperature. Compared with the experimental results, it can be found that the simulation method has relatively high precision.

关 键 词：热电池 激活 数值仿真 开路电压 热分布 

分 类 号：TM911[电气工程—电力电子与电力传动]