This paper discusses the design and development program that is taking place to enable the availability in mid 1999 of a unit designated the Coberra 6761. This features the aircraft derivative Rolls-Royce RB211-24G upgrade gas generator and a new close coupled Cooper-Bessemer RT61 three stage power turbine. The paper describes the upgrade of the gas turbine from 28.4MW (38 000 SHP) to 31.8MW (42 600 SHP) ISO output power at over 40% thermal efficiency. Measures taken to maximize reliability and maintainability while reducing cost of ownership are described. The improvements in the gas generator compressors and turbines are detailed. The new design features of the power turbine are reviewed including a new support structure, modular service features and 3D orthogonal airfoil designs. The forthcoming validation program for the entire gas turbine unit is also discussed.
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ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
June 2–5, 1998
Stockholm, Sweden
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7864-4
PROCEEDINGS PAPER
A New High Efficiency Gas Turbine for Mechanical Drives
Jay M. Wilson,
Jay M. Wilson
Cooper Energy Services, Mount Vernon, OH
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J. William Lindenfeld,
J. William Lindenfeld
Cooper Energy Services, Mount Vernon, OH
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Kenna D. Vendler,
Kenna D. Vendler
Cooper Energy Services, Mount Vernon, OH
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Mike T. Todman,
Mike T. Todman
Rolls-Royce plc, Coventry, UK
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Brian Whinray,
Brian Whinray
Rolls-Royce plc, Coventry, UK
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John W. Muddiman
John W. Muddiman
Rolls-Royce plc, Coventry, UK
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Jay M. Wilson
Cooper Energy Services, Mount Vernon, OH
J. William Lindenfeld
Cooper Energy Services, Mount Vernon, OH
Kenna D. Vendler
Cooper Energy Services, Mount Vernon, OH
Mike T. Todman
Rolls-Royce plc, Coventry, UK
Brian Whinray
Rolls-Royce plc, Coventry, UK
John W. Muddiman
Rolls-Royce plc, Coventry, UK
Paper No:
98-GT-535, V003T07A011; 8 pages
Published Online:
December 23, 2014
Citation
Wilson, JM, Lindenfeld, JW, Vendler, KD, Todman, MT, Whinray, B, & Muddiman, JW. "A New High Efficiency Gas Turbine for Mechanical Drives." Proceedings of the ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations. Stockholm, Sweden. June 2–5, 1998. V003T07A011. ASME. https://doi.org/10.1115/98-GT-535
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