Pore network modelling of condensation in gas diffusion layers of proton exchange membrane fuel cells

被引：58
|
作者：
Straubhaar, B. [1 ,2 ]
Pauchet, J. [3 ]
Prat, M. [1 ,2 ]
机构：
[1] Univ Toulouse, INPT, UPS, IMFT, Allee Camille Soula, F-31400 Toulouse, France
[2] CNRS, IMFT, F-31400 Toulouse, France
[3] CEA, Lab Fuel Cell Components Electrolysers & Modeling, LITEN, LCPEM, 17 Rue Martyrs, F-38054 Grenoble, France
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2016年 / 102卷
关键词：
Pore network modelling; Condensation; Evaporation; Temperature gradient; Gas diffusion layer; LIQUID WATER TRANSPORT; RAY TOMOGRAPHIC MICROSCOPY; INVASION-PERCOLATION; SATURATION DISTRIBUTION; MIXED WETTABILITY; POROUS-MEDIA; 2-PHASE FLOW; PHASE-CHANGE; SIMULATIONS; MECHANISMS;
D O I：
10.1016/j.ijheatmasstransfer.2016.06.078
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A pore network model (PNM) is exploited to simulate the liquid water formation by vapour condensation in the gas diffusion layer (GDL) on the cathode side considering the spatial temperature variations within the GDL. The computed distributions are markedly different from the ones computed in previous works assuming capillarity controlled invasion in liquid phase from the catalyst layer and found to be in quite good agreement with several experimental observations. The proposed model opens up new perspectives for understanding the water transfer in protons exchange membrane fuel cells and the associated water management and aging issues. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：891 / 901
页数：11
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