Title: Exergy analysis of a combined fuel cell and Gas Turbine Power Plant with intercooling and reheating

Authors: Y. Haseli, I. Dincer, G.F. Naterer

Addresses: Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, L1H 7K4 Oshawa, Ontario, Canada. ' Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, L1H 7K4 Oshawa, Ontario, Canada. ' Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, 2000 Simcoe Street North, L1H 7K4 Oshawa, Ontario, Canada

Abstract: This paper presents a comparative exergy study of the performance of various gas turbine power generation plants and a high temperature Solid Oxide Fuel Cell (SOFC). The overall system is analysed and its exergy efficiency and exergy destruction are obtained, as well as individual models of each component. The results for selected operating conditions are compared against past literature data. Comparisons are presented in terms of thermal and exergy efficiencies, net power and exergy destruction rate, vs. the compression ratio and Turbine Inlet Temperature (TIT). It is found that integrating a conventional GT plant with an SOFC can nearly double the efficiency of the cycle.

Keywords: GT-SOFC cycle; exergy efficiency; performance; intercooler; solid oxide fuel cells; gas turbines; power plants; intercooling; reheating; exergy analysis; high temperature SOFC; exergy destruction.

DOI: 10.1504/IJEX.2010.031241

International Journal of Exergy, 2010 Vol.7 No.2, pp.211 - 231

Available online: 26 Jan 2010 *

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