热电池热模型的研究

Study on thermal model of thermal battery

从热电池的基本工作原理出发,研究了热电池放电过程中热量的产生、传递、散失变化特征。并通过计算机软件,将电池模型进行网格划分,依据热量平衡原理,建立电池的热传导方程,利用"有限元法"动态模拟电池放电热过程特征与规律。并通过对电池表面以及内部温度测量进行比较分析,证明了该热模型能够正确地模拟电池放电过程的温度变化。

According to the basic mechanism of thermal batteries, the heat producing, transfering and releasing during battery discharging were studied. The discipline of temperature variety in the battery could be annalyzed by computer software. Firstly, the battery was divided into reseaus. As the principium of energy balance, the equation of heat transfering during battery discharging was founded; Secondly, the process of heat transfer during the battery discharge was simulated dynamically by the Finite Element Method; At last, the surface and inner temperature of the thermal battery were measured and analyzed during battery discharging.The results show that temperature variety in the battery can be responded correctly during battery discharging.