镍氢电池温度场及其结构影响的数值分析  

Numerical Analysis on the Temperature Field and Structural Influence of Nickel-hydrogen Battery

作　　者：秦明俊[1] 朱鹏[1] 于立军[1] 杨立[2] 陈晓玲[1] 王保峰[2] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240 [2]上海交通大学化学化工学院,上海200240

出　　处：《机械工程学报》2009年第1期277-281,共5页Journal of Mechanical Engineering

基　　金：上海市浦江人才计划基金(05PJ14066);高等学校学科创新引智计划(B06012)资助项目。

摘　　要：基于空间用单一压力容器镍氢电池的传热传质以及电化学反应机理,建立三维、非稳态的电池传热模型。这个三维、非稳态电池传热模型包括压力容器在内的全部区域。采用有限容积法对单一压力容器镍氢电池的温度场进行数值模拟,模拟得到的结果与试验结果吻合良好。基于这个模型,提供电池的两种结构设计方案,并根据模拟的温度场结果评价这两种方案。在不改变电池输出功率的情况下,电池极堆位于电池中部时温度场的最大温差最小,尽量大的内径可以获得更小的最大温差。该三维、非稳态电池传热模型可用于镍氢电池的工程设计和参数优化。Based on the mechanisms of heat and mass transfer, electrochemical reaction in a single space-use pressure vessel nickel-hydrogen battery, a three-dimensional, non-steady state heat transfer model of the battery is developed. This model includes all the parts of a battery including the pressure vessel. The temperature field of the battery is simulated by using the finite volume method and the simulation results tally with the experimental data. Based on this model, two kinds of battery design scheme are provided and evaluated on the basis of the simulated temperature field. Under the condition of no change of the battery power, the maximum temperature difference across the temperature field is the smallest when the electrode stack is placed in the middle of battery. Smaller maximum temperature difference can be obtained with larger inside diameter. The three-dimensional, non-steady state heat transfer model can be used for the engineering design and parameter optimization of nickel-hydrogen batteries.

关 键 词：镍氢电池 数值模拟 温度场 结构 

分 类 号：TK121[动力工程及工程热物理—工程热物理]