Modeling and Analysis of Gas Turbine Performance Deterioration

[+] Author and Article Information
A. N. Lakshminarasimha, M. P. Boyce, C. B. Meher-Homji

Boyce Engineering International Inc., Houston, TX 77099

J. Eng. Gas Turbines Power 116(1), 46-52 (Jan 01, 1994) (7 pages) doi:10.1115/1.2906808 History: Received February 11, 1992; Online April 24, 2008


The effects of performance deterioration in both land and aircraft gas turbines are presented in this paper. Models for two of the most common causes of deterioration, viz., fouling and erosion, are presented. A stage-stacking procedure, which uses new installed engine field data for compressor map development, is described. The results of the effect of fouling in a powerplant gas turbine and that of erosion in a aircraft gas turbine are presented. Also described are methods of fault threshold quantification and fault matrix simulation. Results of the analyses were found to be consistent with field observations.

Copyright © 1994 by The American Society of Mechanical Engineers
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