High-reliability gas turbine combined-cycle development program: Phase I

Technical Report · Wed Oct 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6731295· OSTI ID:6731295

Boenig, F. H.; Lewis, J. H.

Results are presented of Phase I of a multi-phase program leading to the development of a High Reliability Gas Turbine. The engine would be used for the base load, combined cycle application starting in the mid-1980's. The design, with primary emphasis on reliability, recognizes the need on the part of the electric utility user for high operating availability together with low maintenance cost to take full advantage of the capital cost and efficiency advantage offered by the combined cycle plant. Phase I was a conceptual design study of both the gas turbine itself and the full plant. Reliability for all component equipment was emphasized from the very outset. In the case of the gas turbine, high reliability was reflected in a concept that features ruggedness and simplicity. Ease of maintenance was provided through structural simplicity and modularization. Component designs for the gas turbine were selected on the basis of a review of past operational experience and an in-depth statistical reliability analysis. Design details were then determined using trade-off and parametric studies. Reliability in the auxiliary and balance of plant waste heat recovery equipment was provided by redundancy of critical components as well as the use of proven equipment. Careful attention was paid to developing a concept for a highly reliable control system that blends automatic operation with manual override for operator intervention. A condition monitoring system to provide alerts for incipient shut down conditions was also incorporated into the control design concept. The final gas turbine design is a 107 MW, single-shaft engine. Projected availability for the final engine installed in a combined cycle plant is 92%. This design will serve as a firm point of departure for the preliminary design to follow during the Phase II program.

• Research Organization: United Technologies Corp., South Windsor, CT (USA). Power Systems Div.
• OSTI ID: 6731295
• Report Number(s): EPRI-AP-1599(Vol.1)
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
COMBINED-CYCLE POWER PLANTS
GAS TURBINE ENGINES
DESIGN
RELIABILITY
FAILURE MODE ANALYSIS
GAS TURBINE POWER PLANTS
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
POWER PLANTS
SYSTEM FAILURE ANALYSIS
SYSTEMS ANALYSIS
THERMAL POWER PLANTS
200102* - Fossil-Fueled Power Plants- Power Cycles