Performance investigation of a micro-tubular flame-assisted fuel cell stack with 3,000 rapid thermal cycles

JOURNAL OF POWER SOURCES

卷:394

Article

Milcarek, Ryan J.¹  Garrett, Michael J.¹  Welles, Thomas S.¹  Ahn, Jeongmin¹ 

[1] Syracuse Univ, Dept Mech & Aerosp Engn, Syracuse, NY 13244 USA

关键词: Flame-assisted fuel cell (FFC);    Micro-tubular solid oxide fuel cell (mT-SOFC);    Two-stage burner;    Rich-burn;    Quick-mix;    Lean-burn (RQL) combustor;    Micro-combined heat and power (micro-CHP);   

DOI  :  10.1016/j.jpowsour.2018.05.060

来源: Elsevier

【 摘 要 】

Solid oxide fuel cell research and development has faced challenges with slow startup, slow shutdown and a limited number of thermal cycles, which hinders the technology in areas like micro-combined heat and power. A novel micro combined heat and power system, based on a boiler/hot water heater with integrated micro-tubular flame assisted fuel cells (mT-FFCs), is proposed which requires rapid startup, shutdown and thousands of thermal cycles. A 9 cell mT-FFC stack is developed and operated in a two-stage combustor. Rapid startup and shutdown of the fuel cells is demonstrated. The first-stage combustor is ignited, turned off and re-ignited for a total of 3000 on/off, thermal cycles. A maximum heating rate of 966 degrees C.min(-1) and a maximum cooling rate of 353 degrees C.min(-1) is achieved while thermal cycling. Despite the presence of CO in the exhaust, the anode remains porous and crack free after similar to 150 h of thermal cycling testing. The mT-FFC stack continues to generate significant power, even after completing the cycling test, and a low voltage degradation rate is reported.

【 授权许可】

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