质子交换膜燃料电池动态过程的数值模拟

HU Guilin; FAN Jianren; CEN Kefa

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质子交换膜燃料电池动态过程的数值模拟

更新时间：2025-12-10

- 质子交换膜燃料电池动态过程的数值模拟
- CIESC Journal Issue 11, (2006)
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- Online First：25 November 2006，
  
  Published：25 November 2006
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HU Guilin, FAN Jianren, CEN Kefa. 质子交换膜燃料电池动态过程的数值模拟[J]. CIESC Journal, 2006, (11).
DOI：

HU Guilin, FAN Jianren, CEN Kefa. 质子交换膜燃料电池动态过程的数值模拟[J]. CIESC Journal, 2006, (11). DOI：

摘要

为描述质子交换膜燃料电池的动态过程，发展了一个基于计算流体动力学的非稳态、非等温的三维两相流数学模型.应用模型对一蛇形流道结构的质子交换膜燃料电池单体进行了数值计算，得到了电池启动过程中电池阴极侧膜表面温度和电流密度等特征参数的动态过程变化曲线.最后，分析了阴极入口速度、湿度和电池电压阶跃变化后电池特性的动态响应特性.结果表明：电池的启动时间和阶跃响应时间均为秒的数量级，与大多数模型模拟的结果相一致.

Abstract

A transient

three-dimensional

non-isothermal and two-phase mathematical model based on computation fluid dynamics was developed to describe the dynamic process of PEMFC.The developed model was used to simulate a serpentine flow field PEMFC

and the dynamic characteristic parameters such as membrane surface temperature at cathode side and current density during the start-up process of fuel cell were computed.The dynamic response of fuel cell characteristics after step change of cathode inlet velocity

humidity and cell voltage was analyzed.It was found that the start-up and step response time of PEM fuel cell was in the order of seconds

which was similar to the simulation results of most presently used models.

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