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Performance and operational economics estimates for a coal gasification combined-cycle cogeneration powerplant

Technical Report ·
OSTI ID:6517934
; ;
A performance and operational economics analysis is presented for an integrated-gasifier, combined-cycle (IGCC) system to meet the steam and baseload electrical requirements. The effect of time variations in steam and electrial requirements is included. The amount and timing of electricity purchases from sales to the electric utility are determined. The resulting expenses for purchased electricity and revenues from electricity sales are estimated by using an assumed utility rate structure model. Cogeneration results for a range of potential IGCC cogeneration system sizes are compared with the fuel consumption and costs of natural gas and electricity to meet requirements without cogeneration. The results indicate that an IGCC cogeneration system could save about 10 percent of the total fuel energy presently required to supply steam and electrical requirements without cogeneration. Also for the assumed future fuel and electricity prices, an annual operating cost savings of 21 percent to 26 percent could be achieved with such a cogeneration system. An analysis of the effects of electricity price, fuel price, and system availability indicates that the IGCC cogeneration system has a good potential for economical operation over a wide range in these assumptions.
Research Organization:
National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
OSTI ID:
6517934
Report Number(s):
NASA-TM-82729
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
20 FOSSIL-FUELED POWER PLANTS
200102 -- Fossil-Fueled Power Plants-- Power Cycles
BOILERS
COAL GASIFICATION
COGENERATION
COMBINED-CYCLE POWER PLANTS
COST
DEUS
ECONOMIC ANALYSIS
ECONOMICS
ELECTRIC POWER
ENERGY CONSUMPTION
ENERGY SOURCES
ENERGY SYSTEMS
FLUIDS
FOSSIL FUELS
FUEL CONSUMPTION
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
GASIFICATION
MACHINERY
MARKETING RESEARCH
NATURAL GAS
OPERATING COST
PERFORMANCE
POWER
POWER GENERATION
POWER PLANTS
STEAM GENERATION
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY