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Precise measurement of effective oxygen diffusivity for microporous media containing moisture by review of galvanic cell oxygen absorber configuration
http://hdl.handle.net/10131/9065
http://hdl.handle.net/10131/9065da5d6d8c-ecf9-4777-9d97-7b483d4a5996
名前 / ファイル | ライセンス | アクション |
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140502_revised_manuscripts_and_figures_投稿版.pdf (975.1 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2015-03-09 | |||||
タイトル | ||||||
タイトル | Precise measurement of effective oxygen diffusivity for microporous media containing moisture by review of galvanic cell oxygen absorber configuration | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | effective oxygen diffusivity, galvanic cell oxygen absorber, gas diffusion layer, polymer electrolyte fuel cell | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Koresawa, Ryo
× Koresawa, Ryo× Utaka, Yoshio |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19300 | |||||
姓名 | コレサワ, リョウ | |||||
著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19301 | |||||
姓名 | ウタカ, ヨシオ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19302 | |||||
姓名 | 宇高, 義郎 | |||||
著者所属 | ||||||
Graduate School of Engineering, Yokohama National University | ||||||
著者所属 | ||||||
Faculty of Engineering, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The performance of polymer electrolyte fuel cells is influenced by moisture control in their gas diffusion layer (GDL). Therefore, to achieve suitable control, it is necessary to clarify the mass transfer characteristics within a GDL by high precision measurement of oxygen diffusivity. We have previously proposed that measurement of the effective oxygen diffusivity in a GDL containing moisture can be achieved using a galvanic cell oxygen absorber and demonstrated this to be an effective technique for the measurement of microporous media. However, the diffusion resistance of a single dry GDL is low, so that the margin of error in the oxygen diffusivity measurement is high. In this study, high precision measurement of the oxygen diffusivity in a GDL was developed further by analysis of the major error factors and modification of the measurement apparatus configuration. The results indicate a reduction in the maximum measurement error from 50% to 20% for a dry GDL with minimal diffusion resistance. | |||||
書誌情報 |
International Journal of Heat and Mass Transfer 巻 76, p. 549-558, 発行日 2014-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00179310 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00680396 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |