High-reliability gas-turbine combined-cycle development program: Phase II. Final report
This report presents the results of Phase II of the multiphase EPRI-sponsored High-Reliability Gas Turbine Combined-Cycle Development Program whose goal is to achieve a highly reliable gas turbine combined-cycle power plant, available by the mid-1980s, which would be an economically attractive baseload generation alternative for the electric utility industry. The Phase II program objective was to prepare the preliminary design of this power plant. This volume presents the summary, conclusions and recommendations for plant arrangement, plant cost, and the design of the gas turbine, the gas turbine ancillaries, and the balance of plant including the steam turbine generator. Current operating experience was updated. A representative power plant, to be used as a reference, was defined, based on present market offerings. To achieve the program goals, a gas turbine was incorporated which combined proven reliability characteristics with improved performance features. Gas turbines of similar design operating in Europe under baseload conditions have demonstrated mean time between failures in excess of 40,000 hours. The reliability characteristics of the gas turbine ancillaries and balance-of-plant equipment were improved through system simplification and component redundancy and by selection of component with inherent high reliability. A digital control system was included with logic, communications, sensor redundancy, and manual backup. An independent condition monitoring and diagnostic system was also included. This power plant has a predicted mean time between failure of nearly twice the 3000-hour EPRI goal. The cost of added reliability features is offset by improved performance, which results in a comparable specific cost and an 8% lower cost of electricity compared to present market offerings.
- Research Organization:
- United Technologies Corp., South Windsor, CT (USA). Power Systems Div.; Pratt and Whitney Aircraft, East Hartford, CT (USA). Commercial Products Div.
- OSTI ID:
- 6777640
- Report Number(s):
- EPRI-AP-2226-Vol.1; ON: DE82902101
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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