Understanding porous water-transport plates in polymer-electrolyte fuel cells

被引:59
|
作者
Weber, Adam Z.
Darling, Robert M.
机构
[1] Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] UTC Power, S Windsor, CT 06074 USA
关键词
polymer-electrolyte fuel cell; model; water-transport plate; water management;
D O I
10.1016/j.jpowsour.2007.02.078
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
In this article, numerical simulations are used to compare polymer-electrolyte fuel cells (PEFCs) with porous flow-field plates to cells with conventional solid plates. The model clarifies the role of the porous plates in humidifying dry reactant streams and managing liquid water. The influence of gas-diffusion-layer (GDL) and bipolar-plate properties and coolant vacuum on the behavior of the cell is investigated. (C) 2007 Elsevier B.V. All rights reserved.
引用
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页码:191 / 199
页数:9
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