The new algorithm provides closed-loop control of the LP compressor working line in such a way as to maintain compressor stability and to provide increased power from the engine at the same firing temperature. This method is intended for the Trent 60, an aeroderivative engine designated for power generation and mechanical drive applications. The power benefit is achieved by operating at higher LPC pressure ratio and thereby increasing the inlet air flow and overall pressure ratio of the engine. Since the algorithm controls the working line, the threats to compressor stability related to the working line level are removed (including production scatter, deterioration, and fouling) and the required surge margin can be safely reduced, providing a significant benefit in engine performance. The paper presents comparatively the structure of the current and new concepts, the main features of the controller, and stresses the improved accuracy and reliability of new algorithms. The performance benefit is then assessed; the increase in power is about 3% at ISO, sea level conditions and varies with ambient temperature.
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e-mail: dan.martis@rolls-royce.com
e-mail: brian.price@rolls-royce.com
e-mail: darryl.edwards@rolls-royce.com
e-mail: vincent.perez@rolls-royce.com
e-mail: samer.mhana@rolls-royce.com
e-mail: nick.papaconstantinou@Rolls-Royce.com
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July 2007
Technical Papers
Engine Performance Improvement by Controlling the Low Pressure Compressor Working Line
Dan Martis,
e-mail: dan.martis@rolls-royce.com
Dan Martis
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Brian Price,
e-mail: brian.price@rolls-royce.com
Brian Price
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Darryl Edwards,
e-mail: darryl.edwards@rolls-royce.com
Darryl Edwards
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Vincent Perez,
e-mail: vincent.perez@rolls-royce.com
Vincent Perez
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Samer Mhana,
e-mail: samer.mhana@rolls-royce.com
Samer Mhana
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Nicholas J. Papaconstantinou
e-mail: nick.papaconstantinou@Rolls-Royce.com
Nicholas J. Papaconstantinou
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canada
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Dan Martis
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: dan.martis@rolls-royce.com
Arthur Rowe
Brian Price
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: brian.price@rolls-royce.com
Darryl Edwards
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: darryl.edwards@rolls-royce.com
Vincent Perez
Rolls-Royce Canada
, 9545-Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: vincent.perez@rolls-royce.com
Marie-Laure Pinquier
Samer Mhana
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: samer.mhana@rolls-royce.com
Nicholas J. Papaconstantinou
Rolls-Royce Canada
, 9545 Cote-de Liesse, Dorval, Quebec, H9P 1A5, Canadae-mail: nick.papaconstantinou@Rolls-Royce.com
J. Eng. Gas Turbines Power. Jul 2007, 129(3): 755-760 (6 pages)
Published Online: November 13, 2006
Article history
Received:
May 5, 2006
Revised:
November 13, 2006
Citation
Martis, D., Rowe, A., Price, B., Edwards, D., Perez, V., Pinquier, M., Mhana, S., and Papaconstantinou, N. J. (November 13, 2006). "Engine Performance Improvement by Controlling the Low Pressure Compressor Working Line." ASME. J. Eng. Gas Turbines Power. July 2007; 129(3): 755–760. https://doi.org/10.1115/1.2718229
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