Fuel flexibility study of an integrated 25 kW SOFC reformer system |
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| Affiliation: | 1. Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research (IEK-3) – Electrochemical Process Engineering, 52425 Jülich, Germany;2. Thomas Magnete GmbH, 57562 Herdorf, Germany;3. GSR Ventiltechnik GmbH & Co.KG, 32602 Vlotho, Germany;4. Chair for Fuel Cells, RWTH Aachen University, Germany;1. Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi 20131, Thailand;2. Department of Chemical Engineering, Faculty of Engineering, Srinakharinwirot University, Nakorn Nayok 26120, Thailand;3. School of Chemical Engineering, Faculty of Engineering, King Mongkut''s Institute of Technology Ladkrabang, Bangkok 10520, Thailand;4. Computational Process Engineering Research Unit, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand;1. Energy Conversion Department, Institute of Fluid Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk, 80-231, Poland;2. ENERGA Wytwarzanie SA, Grunwaldzka 472 St., 80-309, Gdańsk, Poland;1. College of Energy, Xiamen University, Xiamen 361005, China;2. Xi’an Shaangu Power Co., Ltd., Xi’an 710075, China;3. Toshiba Corporation Power and Industrial Systems R&D Center, Yokohama 230-0045, Japan;1. Thermochemical Power Group (TPG), Department of Mechanical Engineering (DIME), Polytechnic School, University of Genoa, Via Montallegro 1, 16145 Genoa, Italy;2. EBZ GmbH, Fuel Cells & Process Technology, Marschnerstrasse 26, 01307 Dresden, Germany;3. Thermochemical Power Group (TPG), Department of Civil, Chemical and Environmental Engineering (DICCA), Polytechnic School, University of Genoa, Via Opera Pia 15, 16145 Genoa, Italy;1. School of Energy and Power Engineering, Shandong University, 17923 Jingshi Road, Jinan 250061, China;2. School of Mechanical, Electrical & Information Engineering, Shandong University at Weihai, 180 Wenhua Xilu, Weihai 264209, China |
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| Abstract: | The operation of solid oxide fuel cells on various fuels, such as natural gas, biogas and gases derived from biomass or coal gasification and distillate fuel reforming has been an active area of SOFC research in recent years. In this study, we develop a theoretical understanding and thermodynamic simulation capability for investigation of an integrated SOFC reformer system operating on various fuels. The theoretical understanding and simulation results suggest that significant thermal management challenges may result from the use of different types of fuels in the same integrated fuel cell reformer system. Syngas derived from coal is simulated according to specifications from high-temperature entrained bed coal gasifiers. Diesel syngas is approximated from data obtained in a previous NFCRC study of JP-8 and diesel operation of the integrated 25 kW SOFC reformer system. The syngas streams consist of mixtures of hydrogen, carbon monoxide, carbon dioxide, methane and nitrogen. Although the SOFC can tolerate a wide variety in fuel composition, the current analyses suggest that performance of integrated SOFC reformer systems may require significant operating condition changes and/or system design changes in order to operate well on this variety of fuels. |
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