Invasion percolation with inlet multiple injections and the water management problem in proton exchange membrane fuel cells

被引：46

作者：

Ceballos, Loic ^{[1
,2
]}

Prat, Marc ^{[1
,2
]}

机构：

[1] Univ Toulouse, INPT, UPS, IMFT, F-31400 Toulouse, France

[2] IMFT, CNRS, F-31400 Toulouse, France

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 03期

关键词：

Polymer electrolyte fuel cells; Micro-porous layer; Gas diffusion layer; Two-phase flow; Pore network model; Invasion percolation; GAS-DIFFUSION LAYERS; VISUALIZATION; TRANSPORT;

D O I：

10.1016/j.jpowsour.2009.08.029

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：

Liquid water transport in the diffusion porous layers of polymer electrolyte membrane fuel cells (PEMFC) is analyzed as a process of quasi-static invasion from multiple interfacial injection sources. From pore network simulations based on a new version of the invasion percolation algorithm it is shown that a porous layer acts as a two-phase filter: the number of breakthrough points is significantly lower that the number of injection points owing to the merging of liquid paths within the porous layer. The number of breakthrough points at the gas diffusion layer/gas channel interface obtained with this model is consistent with the available experimental observations. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：825 / 828

页数：4

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