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Design and Self-sustainable Operation of 1 kW SOFC System  

Lee, Tae-Hee (Green Growth Technology Laboratory, Korea Electric Power Research Institute)
Choi, Jin-Hyeok (Green Growth Technology Laboratory, Korea Electric Power Research Institute)
Park, Tae-Sung (Green Growth Technology Laboratory, Korea Electric Power Research Institute)
Yoo, Young-Sung (Green Growth Technology Laboratory, Korea Electric Power Research Institute)
Nam, Suk-Woo (Center for Fuel Cell Research, Korea Institute of Science and Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.5, 2009 , pp. 384-389 More about this Journal
Abstract
KEPRI (Korea Electric Power Research Institute) has studied planar type solid oxide fuel cell (SOFC) stacks using anode-supported cells and kW class co-generation systems for residential power generation. In this work, a 1 kW SOFC system consisted of a hot box part, a cold BOP (balance of plant) part, and a hot water reservoir. The hot box part contained a SOFC stack made up of 48 cells, a fuel reformer, a catalytic combustor, and heat exchangers. Thermal management and insulation system were especially designed for self-sustainable operation in that system. A cold BOP part was composed of blowers, pumps, a water trap, and system control units. When the 1 kW SOFC stack was tested using hydrogen at $750^{\circ}C$, the stack power was about $1.2\;kW_e$ at 30 A and $1.6\;kW_e$ at 50 A. Turning off an electric furnace, the SOFC system was operated using hydrogen and city gas without any external heat source. Under self-sustainable operation conditions, the stack power was about $1.3\;kW_e$ with hydrogen and $1.2\;kW_e$ with city gas respectively. The system also recuperated heat of about $1.1\;kW_{th}$ by making hot water.
Keywords
Solid oxide fuel cell; Self-sustainable operation; Thermal management system; Balance of plant; Co-generation;
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Times Cited By KSCI : 1  (Citation Analysis)
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