期刊
JOURNAL OF POWER SOURCES
卷 331, 期 -, 页码 462-474出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2016.09.076
关键词
Polymer electrolyte membrane fuel cell; Gas diffusion layer; X-ray tomographic microscopy; Pore network; Full morphology; Liquid water
资金
- EU within the Fuel Cells and Hydrogen Joint Undertaking (FCHJU) [303446]
Understanding and modeling two-phase flows in the gas diffusion layer (GDL) of proton exchange membrane fuel cells are important in order to improve fuel cells performance. They are scientifically challenging because of the peculiarities of GDLs microstructures. In the present work, simulations on a pore network model are compared to X-ray tomographic images of water distributions during an ex-situ water invasion experiment. A method based on watershed segmentation was developed to extract a pore network from the 3D segmented image of the dry GDL. Pore network modeling and a full morphology model were then used to perform two-phase simulations and compared to the experimental data. The results show good agreement between experimental and simulated microscopic water distributions. Pore network extraction parameters were also benchmarked using the experimental data and results from full morphology simulations. (C) 2016 Elsevier B.V. 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