Internal Reforming Solid Oxide Fuel Cell Gas Turbine Combined Cycles (IRSOFC-GT)—Part II: Exergy and Thermoeconomic Analyses
- 27 December 2002
- journal article
- Published by ASME International in Journal of Engineering for Gas Turbines and Power
- Vol. 125 (1), 67-74
- https://doi.org/10.1115/1.1492837
Abstract
The aim of this work is to investigate the performance of internal reforming solid oxide fuel cell (IRSOFC) and gas turbine (GT) combined cycles. A mathematical model of the IRSOFC steady-state operation was presented in Part I of this work coupled to the thermodynamic analysis of a number of proposed IRSOFC-GT combined cycles, taking into account the influence of several technological constraints. In the second part of this work, both an exergy and a thermoeconomic analysis of the proposed cycles have been carried out using the TEMP code developed by the author. A suitable equation for IRSOFC cost evaluation based on cell geometry and performance has been proposed and employed to evaluate the electricity generation cost of the proposed combined systems. The results are presented and the influence of several parameters is discussed: external reformer operating conditions, fuel-to-air ratio, cell current density, compressor pressure ratio, etc. Diagrams proposed by the author for cost versus efficiency, cost versus specific work, and cost versus system pressure are also presented and discussed.Keywords
This publication has 8 references indexed in Scilit:
- Thermoeconomic analysis of mixed gas–steam cyclesApplied Thermal Engineering, 2002
- Thermoeconomic Analysis of Gas Turbine Based CyclesJournal of Engineering for Gas Turbines and Power, 2000
- Internal Reforming Solid Oxide Fuel Cell-Gas Turbine Combined Cycles (IRSOFC-GT): Part A—Cell Model and Cycle Thermodynamic AnalysisJournal of Engineering for Gas Turbines and Power, 1999
- Environmental Influence on the Thermoeconomic Optimization of a Combined Plant With NOx AbatementJournal of Engineering for Gas Turbines and Power, 1998
- A Tool for Thermoeconomic Analysis and Optimization of Gas, Steam, and Combined PlantsJournal of Engineering for Gas Turbines and Power, 1997
- Parametric Study of Fuel Cell and Gas Turbine Combined Cycle PerformancePublished by ASME International ,1997
- Cost projections for planar solid oxide fuel cell systemsPublished by Office of Scientific and Technical Information (OSTI) ,1996
- Production cost estimation of solid oxide fuel cellsJournal of Power Sources, 1994