被动式质子交换膜燃料电池温度特性的数值模拟

Research on Battery Temperature Characteristics of Passive Proton Exchange Membrane Fuel

本文研究空气自然冷却被动式质子交换膜燃料电池使温度控制在合理的工作温度范围内,确保电池发挥最佳工作性能.通过建立三维模型,并从被动式质子交换膜燃料电池内部传热、传质过程与电化学反应耦合的角度数值模拟,结果表明环境温度的改变对被动式质子交换膜燃料电池内温度的变化有很大的影响.探索自然冷却散热的设计方法,对被动式质子交换膜燃料电池高效热管理系统具有重要意义.

This paper studies natural air cooling passive proton to control the temperature in the working temperature range within a reasonable exchange membrane fuel cell, to ensure the best performance. By establishing the three - dimensional model, numerical simulation and exchange membrane fuel cell internal heat transfer, mass transfer processes and electrochemical reaction coupling from the passive Proton＇ s point of view, the results show that there is great influence of the change of environmental temperature change membrane fuel cell proton exchange of passive. To explore the design method of natural cooling, has the important meaning to thermal management system of the passive proton exchange membrane fuel cell.