Evaluation of gas diffusion performance in wet GDL with 3D pore network model

G. Inoue, Y. Matsukuma, M. Minemoto

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

25 被引用数 (Scopus)

抄録

It is important to investigate the two-phase condition in PEFC gas diffusion layer (GDL). In this study, the simulated GDL structures, such as carbon paper and carbon cloth, were developed by numerical analysis including the random orientation of carbon fibers and binders. And detailed structural estimation was carried out. Pore size distribution, electrical resistivity and tortuosity were calculated, and these values almost agreed with actual measurement values. Furthermore, in order to calculated two-phase condition in GDL, 3D pore network model based on an actual heterogeneous structure was developed by improving our past networking method. And the accumulating liquid water condition and the O2 gas diffusion performance of each GDL structure were compared on the water permeable condition. As the results, the relative diffusion coefficient models between wet and dry condition of each GDL were obtained by these calculations.

本文言語英語
ホスト出版物のタイトルECS Transactions -Proton Exchange Membrane Fuel Cells 9
ページ1519-1527
ページ数9
1 PART 2
DOI
出版ステータス出版済み - 2009
イベント9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society - Vienna, オーストリア
継続期間: 10月 4 200910月 9 2009

出版物シリーズ

名前ECS Transactions
番号1 PART 2
25
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

その他

その他9th Proton Exchange Membrane Fuel Cell Symposium (PEMFC 9) - 216th Meeting of the Electrochemical Society
国/地域オーストリア
CityVienna
Period10/4/0910/9/09

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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