The Proceedings of the Thermal Engineering Conference
Online ISSN : 2424-290X
2007
Session ID : G133
Conference information
G133 Oxygen Diffusion Characteristics of Gas Diffusion Layer with Moisture
Yutaka TASAKI, Shixue WANG, Yasushi ICHIKAWA, Denis. Kramer, Pierre. Boillat, Gabriel. Frei, Gunther. G. Scherer, Eberhard H. Lehmann, Yoshio UTAKA, Daigo IWASAKI
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Keywords: Gas Diffusion, Porous Media, Polymer Electrolyte Fuel Cell, Neutron Radiography
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Abstract
The mass transfer characteristics of gas diffusion layer (GDL) are closely related to cell performance in PEFC. In this study, the oxygen diffusivity of paper and cloth type porous media used generally as GDL with respect to its liquid water content were measured by using an experimental apparatus consist of oxygen sensor based on Galvanic battery, and liquid water distribution in each porous medium is visualized by using Neutron Radiography. The relationship between oxygen diffusivity and liquid water distribution has been studied for paper and cloth type GDL, respectively.
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© 2007 The Japan Society of Mechanical Engineers
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