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2014
Presentation
Title
The eneramic® power generator - a reliable fuel cell battery hybrid system for off-grid power supply
Title Supplement
Presentation held at 38th International Conference and Exposition on Advanced Ceramics and Composites, January 26-31, 2014, Daytona Beach, Florida
Abstract
Off-grid power generation is considered as an attractive market for fuel cells. For this purpose, a compact SOFC battery hybrid system was developed that operates on commercially available fuels. Due to its progressive thermal packaging, the mobile prototype achieves a net efficiency of 22 % using commercial balance of plant components. By direct preheating of the SOFC stack with start burner off-gas it was possible to reduce the cold start time of the system. Thus, this SOFC system is designed for frequent start-up and cycling capability. In consequence the planar SOFC stack was tested with rapid heating rates up to 20 K/min in furnace and hotbox environment. The power degradation caused by system cycling is less than 0.1 % per cycle. Finally, the optimization of stack temperature conditions has improved the lifetime of the SOFC stack significantly.
Author(s)