The Canadian Department of National Defence has identified a need for improved Engine Health Monitoring procedures for the new Canadian Patrol Frigate (CFF). The CFF propulsion system includes two General Electric LM2500 gas turbines, a high pressure ratio engine with multiple stages of compressor variable geometry. A general method for predicting the thermodynamic performance of variable geometry axial compressors has been developed. The new modelling technique is based on a meanline stage-stacking analysis and relies only on the limited performance data typically made available by engine manufacturers. The method has been applied to the LM2500-30 marine gas turbine and the variations in engine performance which can result from a malfunction of the variable geometry system in service have been estimated.
Health monitoring of variable geometry gas turbines for the Canadian Navy
Zustandsueberwachung von Gasturbinen mit variabler Geometrie fuer die kanadische Marine
ASME-Papers ; Jun ; 1-8
1988
8 Seiten, 12 Bilder, 2 Tabellen, 17 Quellen
Conference paper
English
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