High operating temperature of SOFCs can make internal reforming effective as well as inhibit CO poison over the Ni-based anode. Therefore, SOFCs give us a wide range of fuel choice. In this study, diesel known as a very tough fuel for fuel cell applications was chosen as the SOFC fuel. Our final goal is to develop the 1kWe diesel-powered SOFC systems for residential power generation purpose. Before the system construction, we have drawn a few engineering and scientific problems from the bench tests of reformer and stack. Most of all, coke formation in the reformer and stack was very serious. Coking in the diesel reformer was greatly associated with fuel delivery process in our micro-reactor tests, which was more serious in scaled-up reformer. With several fundamental tests, the prototype construction of 1kWe SOFC system is in progress. Essentially, all heat-related components (e.g. stack, reformer, heat exchanges, after-burner) were installed inside one chamber, so called ‘hot box’. The design was mainly focused on thermal sustenance. In a 6-cell stack test using sulfur-free synthetic diesel, the system initially showed the power of ∼110We at average 0.8V of the cells. But, there was severe coke formation after a few hours operation.
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ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology
June 16–18, 2008
Denver, Colorado, USA
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4318-1
PROCEEDINGS PAPER
Preparatory Tests for 1kW Diesel-Powered SOFC Systems
Inyong Kang,
Inyong Kang
Colorado School of Mines, Golden, CO
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Sangho Yoon,
Sangho Yoon
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Gyujong Bae,
Gyujong Bae
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Junghyun Kim,
Junghyun Kim
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Seungwhan Baek,
Seungwhan Baek
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Joongmyeon Bae,
Joongmyeon Bae
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
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Yungsung Yoo
Yungsung Yoo
Korea Electric Power Research Institute, Daejeon, South Korea
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Inyong Kang
Colorado School of Mines, Golden, CO
Sangho Yoon
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Gyujong Bae
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Junghyun Kim
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Seungwhan Baek
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Joongmyeon Bae
Korea Advanced Institute of Science and Technology, Daejeon, South Korea
Yungsung Yoo
Korea Electric Power Research Institute, Daejeon, South Korea
Paper No:
FuelCell2008-65096, pp. 19-26; 8 pages
Published Online:
June 22, 2009
Citation
Kang, I, Yoon, S, Bae, G, Kim, J, Baek, S, Bae, J, & Yoo, Y. "Preparatory Tests for 1kW Diesel-Powered SOFC Systems." Proceedings of the ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. Denver, Colorado, USA. June 16–18, 2008. pp. 19-26. ASME. https://doi.org/10.1115/FuelCell2008-65096
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