Effect of flow field pattern and microporous layer on gas purge of a polymer electrolyte fuel cell

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

The effect of flow field pattern and microporous layer (MPL) on the exhaust of the residual water at the flow channel, gas diffusion layer (GDL), and catalyst layer (CL) in the cathode of a polymer electrolyte fuel cell during gas purge after shutdown is separately studied for preventing freeze damage and efficient cold start below freezing point. The time variations of the high frequency and charge transfer resistances are obtained from electrochemical impedance spectroscopy to detect the drying of each component separately. This can be used to stop the purging appropriately to minimize energy consumption. An interdigitated type flow field drys the GDL substrate faster than a serpentine flow field. In addition, MPL drying process and its moisture retention effect on the drying of the CL and electrolyte membrane are observed. The serpentine flow field is shown to dry the MPL faster than the interdigitated type flow field.

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937-944
ページ数8
1 PART 1
DOI
出版ステータス出版済み - 12月 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月 10 201010月 15 2010

出版物シリーズ

名前ECS Transactions
番号1 PART 1
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
国/地域米国
CityLas Vegas, NV
Period10/10/1010/15/10

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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