A two-phase flow and transport model for PEM fuel cells

被引：76

作者：

You, LX ^{[1
]}

Liu, HT ^{[1
]}

机构：

[1] Univ Miami, Coll Engn, Dept Mech Engn, Coral Gables, FL 33124 USA

来源：

JOURNAL OF POWER SOURCES | 2006年 / 155卷 / 02期

关键词：

proton exchange membrane (PEM); fuel cells; two-phase flow; mathematical model; water and thermal management;

D O I：

10.1016/j.jpowsour.2005.04.025

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A two-phase flow and multi-component mathematical model with a complete set of governing equations valid in different components of a PEM fuel cell is developed. The model couples the flows, species, electrical potential, and current density distributions in the cathode and anode fluid channels, gas diffusers, catalyst layers and membrane, respectively. The modeling results of typical concentration distributions are presented. The coupling of oxygen concentration, current density, overpotential and potential are shown in the membrane electrode assembly (MEA). The model predicted fuel cell polarization curves for different cathode pressures compared well with our experimental data. (c) 2005 Published by Elsevier B.V.

引用

页码：219 / 230

页数：12

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