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Energy Conversion Alternatives Study (ECAS), Westinghouse Phase 1. Vol. VI: closed-cycle gas turbine systems. Final report

David J. Amos, W. K. Fentress, W. F. Stahl

Abstract

Both recuperated and bottomed closed cycle gas turbine systems in electric power plants were studied. All systems used a pressurizing gas turbine coupled with a pressurized furnace to heat the helium for the closed cycle gas turbine. Steam and organic vapors are used as Rankine bottoming fluids. Although plant efficiencies of over 40% are calculated for some plants, the resultant cost of electricity was found to be 8.75 mills/MJ (31.5 mills/kWh). These plants do not appear practical for coal or oil fired plants.

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Key concepts: Rankine cycle, Combined cycle, Gas turbines, Waste management, Turbine, Engineering, Nuclear engineering, Thermodynamic cycle