A cross-sectional observation of water behavior in the flow channel in PEFC

Sang Kun Lee, Kohei Ito, Kazunari Sasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

5 被引用数 (Scopus)

抄録

Liquid water growth pattern in the gas flow channel in PEFC was visualized by using an ex-situ optical cross-sectional observation system developed. We investigated the impact of surface hydrophobicity of the GDL and channel on the liquid water growth pattern. The liquid water, which was emerged at 5 mm back from the gas outlet, was observed with spatial resolution of 20 μm by optimizing the optical system including CCD camera. Pressure drop through the channel was measured to evaluate the impact of water droplet on it. As a result, it is obtained that adhesion force formed in combination of hydrophobic GDL and hydrophilic channel sucked the water from GDL to channel corner, and suppressed the water contact with the GDL surface, and accelerated the water drainage, leading to prevent the water droplet growing in the channel.

本文言語英語
ホスト出版物のタイトルPolymer Electrolyte Fuel Cells 10, PEFC 10
ページ1457-1463
ページ数7
1 PART 2
DOI
出版ステータス出版済み - 12 1 2010
イベント10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting - Las Vegas, NV, 米国
継続期間: 10 10 201010 15 2010

出版物シリーズ

名前ECS Transactions
番号1 PART 2
33
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

その他

その他10th Polymer Electrolyte Fuel Cell Symposium, PEFC 10 - 218th ECS Meeting
Country米国
CityLas Vegas, NV
Period10/10/1010/15/10

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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