A thermally self-sustaining miniature solid oxide fuel cell

Jeongmin Ahn, Paul D. Ronney, Zongping Shao, Sossina M. Haile

科研成果: 书/报告/会议事项章节会议稿件同行评审

2 引用 (Scopus)

摘要

A thermally self-sustaining miniature power generation device was developed utilizing a single-chamber solid oxide fuel cell (SOFC) placed in a controlled thermal environment provided by a spiral counterflow "Swiss roll" heat exchanger and combustor. With the single-chamber design, fuel/oxygen crossover due to cracking of seals via thermal cycling is irrelevant and coking on the anode is practically eliminated. Appropriate SOFC operating temperatures were maintained even at low Reynolds numbers (Re) via combustion of the fuel cell effluent at the center of the Swiss roll. Both propane and higher hydrocarbon fuels were examined. Extinction limits and thermal behavior of the integrated system were determined in equivalence ratio - Re parameter space and an optimal regime for SOFC operation was identified. SOFC power densities up to 420 mW/cm2 were observed at low Re. These results suggest that single-chamber SOFC's integrated with heat-recirculating combustors may be a viable approach for small-scale power generation devices.

源语言英语
主期刊名Energy Systems
主期刊副标题Analysis, Thermodynamics and Sustainability
出版商American Society of Mechanical Engineers (ASME)
117-122
页数6
ISBN(电子版)0791843009
DOI
出版状态已出版 - 2007
活动ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, 美国
期限: 11 11月 200715 11月 2007

出版系列

姓名ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
6

会议

会议ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
国家/地区美国
Seattle
时期11/11/0715/11/07

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