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A study on performance of solid oxide fuel cell‐organic Rankine cycle combined system
Author(s) -
Akkaya Ali Volkan,
Sahin Bahri
Publication year - 2009
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.1490
Subject(s) - organic rankine cycle , solid oxide fuel cell , condenser (optics) , degree rankine , gas compressor , process engineering , turbine , overall pressure ratio , engineering , waste heat recovery unit , rankine cycle , waste heat , electrical efficiency , nuclear engineering , thermodynamics , mechanical engineering , waste management , power (physics) , chemistry , heat exchanger , anode , light source , physics , optics , electrode
This study presents an energetic performance analysis for a combined power generation system consisting of a solid oxide fuel cell (SOFC) and an organic Rankine cycle (ORC). In order to simulate the SOFC–ORC combined system under steady‐state conditions, a mathematical model is developed. The developed model is used to determine the potential effects caused by the changes of the design parameters on the energetic performance of the combined system. As design parameters, turbine inlet pressure, condenser temperature, fuel utilization, current density, compressor pressure ratio, and cell operating temperature are taken into account. In this regard, the electrical power and First Law efficiency are estimated by parametrical analysis and discussed comprehensively. Results of these analyses show that the efficiency is increased about 14–25% by recovering SOFC waste heat through ORC based on investigated design parameter conditions. Copyright © 2008 John Wiley & Sons, Ltd.