Three-dimensional investigation of water distribution in a miniature PEM fuel cell

被引：0
作者：
Krüger P.
Ulm H.M.
Klages M.
Haußmann J.
Ulm T.A.
Riesemeier H.
Hartnig C.
Ulm J.B.
Manke I.
Joachim Scholta U.
机构：
来源：
Materialpruefung/Materials Testing | 2010年 / 52卷 / 10期
关键词：
Compendex;
D O I：
10.3139/120.110177
中图分类号：
学科分类号：
摘要：
Synchrotron radiation was applied for tomographic imaging to investigate the water distribution in the gas diffusion layer (GDL) of a low temperature polymer electrolyte membrane fuel cell (PEMFC). The high spatial resolution of down to 10 um allows for the analysis of water agglomerations in the porous structure of the GDL as well as in the flow field channels. Due to the threedimensional capturing of the cell a broad variety of issues concerning the fuel cell operation can be addressed. The fuel cell is operated at steady state conditions and tomographed directly after operation. Thus, tomograms can be captured and analyzed at various operating conditions. Insights into the cell assembly are possible from different viewing directions. In addition section views provide the basis for detailed investigations especially of the GDL. Beside the visualization of the water distribution a characterization of the employed materials is feasible.
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页码：712 / 717
页数：5
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