Numerical model of direct internal reforming SOFC: A Comparison between Anode-support and Metal-support

Y. Wang, J. Ren, Y. Shi, X. Li

科研成果: 书/报告/会议事项章节会议稿件同行评审

12 引用 (Scopus)

摘要

Direct internal reforming (DIR) operation provides many benefits for solid oxide fuel cells (SOFCs) by eliminating the need for an extra reformer. Anode-supported SOFCs (AS-SOFCs) are commonly used for DIR operations. However, the strong endothermic reforming reactions at the cell entrance may result in large thermal stresses and lead to premature failure. In this study, a two-dimensional model was developed to analyze the differences between the AS-SOFC and the new generation metal-supported SOFC (MS-SOFC) in DIR operations. The model considered the coupling effects of the chemical/electrochemical reactions, the mass/charge/heat transport processes and the thermal mechanical stress. The distributions of temperature, species composition, current density and thermal stress were determined and compared for both structures. The failure probability of the cell was estimated by stress distributions. The results showed that the MS-SOFC led to a gentler temperature distribution and a smaller failure probability with slight performance increase compared to the AS-SOFC.

源语言英语
主期刊名Solid Oxide Fuel Cells 16, SOFC 2019
编辑K. Eguchi, S. C. Singhal
出版商Electrochemical Society Inc.
2013-2022
页数10
版本1
ISBN(电子版)9781607688747, 9781607688747
DOI
出版状态已出版 - 2019
活动16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019 - Kyoto, 日本
期限: 8 9月 201913 9月 2019

出版系列

姓名ECS Transactions
编号1
91
ISSN(印刷版)1938-6737
ISSN(电子版)1938-5862

会议

会议16th International Symposium on Solid Oxide Fuel Cells, SOFC 2019
国家/地区日本
Kyoto
时期8/09/1913/09/19

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