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TECHNICAL PAPERS: Gas Turbines: Cycle Innovations

Internal Reforming Solid Oxide Fuel Cell-Gas Turbine Combined Cycles (IRSOFC-GT): Part A—Cell Model and Cycle Thermodynamic Analysis

[+] Author and Article Information
A. F. Massardo, F. Lubelli

Dipartimento di Macchine Sistemi Energetici e Trasporti Universita di Genova, Via Montallegro 1, 16145 Genova, Italia

J. Eng. Gas Turbines Power 122(1), 27-35 (Oct 20, 1999) (9 pages) doi:10.1115/1.483187 History: Received March 31, 1998; Revised October 20, 1999
Copyright © 2000 by ASME
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References

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Korakianitis, T., Grantstrom, J., Wassingbo, P., and Massardo, A., 1997, “Parametric Performance of Combined Power Plants With Various Power-Efficiency Enhancements,” ASME Paper 97-GT-286.
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Agazzani,  A., and Massardo,  A. F., 1997, “A Tool for Thermoeconomic Analysis and Optimization of Gas, Steam and Combined Plants,” ASME J. Eng. Gas Turbines Power, 119, No. 4, pp. 885–892.
Massardo, A., 2000, “Internal Reforming Solid Oxide Fuel Cell Gas Turbine Combined Cycle (IRSOFC-GT): Part B—Exergy and Thermoeconomic Analyses,” submitted for publication in ASME Transactions.
Harvey,  S. P., and Richter,  H. J., 1994, “Gas Turbine Cycles With Solid Oxide Fuel Cells. Part I and Part II,” ASME J. Energy Resour. Technol., 116, pp. 305–318.
Bessette, N. F., 1994, “Modeling and Simulation for Solid Oxide Fuel Cell Power System,” Ph.D. thesis, Georgia Institute of Technology, Atlanta, GA.
Costamagna, P., 1997, “Aspetti fluodinamici e di trasporto in reattori monolitici electrochimici. Simulazione delle celle a combustibile ad ossidi solidi,” Ph.D. thesis, University of Genoa.
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Figures

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Cell current density influence on IRSOFC voltage versus operative pressure
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Operative pressure influence on IRSOFC power ratio (P/PST) versus current density
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Cathode and anode inlet temperature influence on IRSOFC power ratio (P/PST) versus current density
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Fuel and oxidant influence on IRSOFC power ratio (P/PST) versus current density
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(a) IRSOFC temperature versus oxidant and fuel flow ratios. (b) IRSOFC efficiency versus oxidant and fuel flow ratios.
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Oxidant chemical composition influence on IRSOFC voltage ratio (V/VST) versus current density
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Fuel composition influence on IRSOFC specific work versus current density (O2 utilization factor is constant)
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(a) IRSOFC temperature versus fuel flow ratio and operative pressure. (b) IRSOFC efficiency versus fuel flow ratio and operative pressure.
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Fuel to air ratio influence on FCGT1 plant efficiency versus compressor pressure ratio (current density 3000 A/m2 )
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External reformer operative condition influence on FCGT1 efficiency versus pressure ratio (mf/mair=3.5 percent)
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External reformer operative conditions influence on FCGT2 efficiency versus pressure ratio (mf/mair=3.0 percent)
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External reformer operative conditions influence on FCGT2 efficiency versus pressure ratio (mf/mair=3.5 percent)
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FCGT1 and FCGT2 efficiencies versus specific work (Δpc=0)
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Fuel to air ratio influence on FCGT3 plant efficiency versus system pressure ratio (ext. ref. at equilibrium)
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External reformer operative conditions influence on FCGT3 efficiency versus system pressure ratio (mf/mair=3.0 percent)
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Fuel to air ratio influence on FCGT4 plant efficiency versus system pressure ratio (ext. ref. at equilibrium)
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Fuel to air ratio influence on FCGT4 plant efficiency versus specific work (Δpc=0%)
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IRSOFC temperature and combined IRSOFC-GT plant efficiency versus cell current density (ρST=3000 A/m2)

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