A parametric study of SOFC performances with multi-stage electrochemical oxidation for enhancement of electric efficiency

Y. Matsuzaki, Y. Tachikawa, T. Hatae, H. Matsumoto, S. Taniguchi, K. Sasaki

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

1 引用 (Scopus)

抜粋

The solid-state ceramic construction of SOFCs enables high fuel to electricity conversion efficiencies of as high as 50 to 60 percent LHV in high temperature operation, and allows more flexibility in fuel choice. In this study, we have developed a symbolic analysis method to investigate the availability of variable parameters appearing in multi-stage electrochemical oxidation mechanism that is expected to further improve the electric efficiencies of SOFCs. In the flow system of the multi-stage oxidation, the fuel utilization, Uf, at the most downstream stack, UfM, is expressed as a function of number of stacks, n, and total fuel utilization, UfT. When n = 10 and UfT = 85%, UfM is calculated to be 36%, which is much smaller than UfT. Therefore, if the most downstream stack has high robustness against lean fuel gas, UfT could be set to higher values without serious degradation by using this flow system.

元の言語英語
ホスト出版物のタイトルSolid Oxide Fuel Cells 14, SOFC 2015
編集者K. Eguchi, S. C. Singhal
出版者Electrochemical Society Inc.
ページ1961-1968
ページ数8
エディション1
ISBN(電子版)9781607685395
DOI
出版物ステータス出版済み - 1 1 2015
イベント14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage - Glasgow, 英国
継続期間: 7 26 20157 31 2015

出版物シリーズ

名前ECS Transactions
番号1
68
ISSN(印刷物)1938-5862
ISSN(電子版)1938-6737

その他

その他14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage
英国
Glasgow
期間7/26/157/31/15

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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  • これを引用

    Matsuzaki, Y., Tachikawa, Y., Hatae, T., Matsumoto, H., Taniguchi, S., & Sasaki, K. (2015). A parametric study of SOFC performances with multi-stage electrochemical oxidation for enhancement of electric efficiency. : K. Eguchi, & S. C. Singhal (版), Solid Oxide Fuel Cells 14, SOFC 2015 (1 版, pp. 1961-1968). (ECS Transactions; 巻数 68, 番号 1). Electrochemical Society Inc.. https://doi.org/10.1149/06801.1961ecst