期刊
ELECTROCHIMICA ACTA
卷 53, 期 26, 页码 7630-7637出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2008.03.078
关键词
gas diffusion layer; porous media; two-phase now; microfluidic; polymer electrolyte membrane fuel cell; biased networks
资金
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Canada Research Chairs Program
- National Research Council (NRC)
- Canadian Foundation for Innovation (CFI)
Based on a pore network representation of porous media, numerical and experimental methods are employed to explore the design of gas diffusion media in order to control and direct water transport. Randomized pore networks with structured biasing in both diagonal and radial directions show a marked influence on liquid water transport through the two-dimensional media. Radial biasing is shown to have the beneficial effect of decreasing the network saturation, which is a desirable quality in fuel cell gas diffusion layers. Similar flow patterns are obtained from both numerical Simulations and experiments, and it is found that relatively small radial biasing can yield a 43% decrease in average saturation compared to pore networks without a prescribed radial gradient. (C) 2008 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据