The planar type 1 kW class solid oxide fuel cell (SOFC) stack using metallic interconnects such as ferritic stainless steel has been developed for application in a residential power generation system. For the intermediate temperature operation of the SOFC, a higher performance of anode-supported single cells of with a thin electrolyte layer of yttria-stabilized zirconia were fabricated by slurry coating, and their performances were improved by a microstructure-controlled anode substrate and by introducing alternative cathode materials. The thicknesses of the electrolyte and the cathode layers were about and , respectively. and ac impedance characteristics of single cells were evaluated at an intermediate temperature by using hydrogen gas as fuel. The maximum power density of the anode-supported cells was about at and at . In this work a 1 kW class SOFC stack composed of 37 cells was successfully manufactured and a SOFC system with balance of plant (BOP) (reformer, heat exchanger, catalytic burner, etc.) integrated for combined heat and power. The system designed for power generation by using a natural gas as fuel can concurrently produce electricity at a SOFC stack and hot water from recuperating heat. The system showed a maximum dc output of . Detailed status and experimental results of the 1 kW SOFC system will be discussed in this paper.
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e-mail: yungsung@kepri.re.kr
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May 2009
This article was originally published in
Journal of Fuel Cell Science and Technology
Research Papers
Fabrication and Demonstration of 1 kW Class SOFC Stack and System for Residential Power Generation Application
Young-Sung Yoo,
e-mail: yungsung@kepri.re.kr
Young-Sung Yoo
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
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Taehee Lee,
Taehee Lee
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
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Jin Hyeok Choi,
Jin Hyeok Choi
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
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Tae-Sung Park,
Tae-Sung Park
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
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Je-Myung Oh,
Je-Myung Oh
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
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Chong-Young Kim
Chong-Young Kim
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
Search for other works by this author on:
Young-Sung Yoo
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Koreae-mail: yungsung@kepri.re.kr
Taehee Lee
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
Jin Hyeok Choi
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
Tae-Sung Park
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
Je-Myung Oh
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, Korea
Chong-Young Kim
Korea Electric Power Research Institute (KEPRI)
, 103-16 Munji-Dong, Yuseong-Gu, Daejeon 305-380, KoreaJ. Fuel Cell Sci. Technol. May 2009, 6(2): 021008 (5 pages)
Published Online: February 24, 2009
Article history
Received:
June 14, 2007
Revised:
April 1, 2008
Published:
February 24, 2009
Citation
Yoo, Y., Lee, T., Choi, J. H., Park, T., Oh, J., and Kim, C. (February 24, 2009). "Fabrication and Demonstration of 1 kW Class SOFC Stack and System for Residential Power Generation Application." ASME. J. Fuel Cell Sci. Technol. May 2009; 6(2): 021008. https://doi.org/10.1115/1.2971129
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