NDLI: Engine Performance Improvement by Controlling the Low Pressure Compressor Working Line

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Martis, Dan Rowe, Arthur Pinquier, Marie-Laure Price, Brian Papaconstantinou, Nicholas Edwards, Darryl Perez, Vincent Mhanna, Samer
Copyright Year	2005
Abstract	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 aero-derivative 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.
Sponsorship	International Gas Turbine Institute
Starting Page	307
Ending Page	313
Page Count	7
File Format	PDF
ISBN	0791847284
DOI	10.1115/GT2005-68729
e-ISBN	0791837548
Volume Number	Volume 5: Turbo Expo 2005
Conference Proceedings	ASME Turbo Expo 2005: Power for Land, Sea, and Air
Language	English
Publisher Date	2005-06-06
Publisher Place	Reno, Nevada, USA
Access Restriction	Subscribed
Subject Keyword	Compressor Variable geometry optimization Working line Performance improvement Closed-loop control Pressure Compressors Engines
Content Type	Text
Resource Type	Article

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