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TECHNICAL PAPERS

Identifying Faults in the Variable Geometry System of a Gas Turbine Compressor

[+] Author and Article Information
A. Tsalavoutas, K. Mathioudakis, A. Stamatis

Laboratory of Thermal Turbomachines, National Technical University of Athens, P.O. Box 64069, Athens 15710, Greece

M. Smith

ABB Alstom Power UK Ltd., United Kingdom

J. Turbomach 123(1), 33-39 (Feb 01, 2000) (7 pages) doi:10.1115/1.1330267 History: Received February 01, 2000
Copyright © 2001 by ASME
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References

Figures

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Schematic of a typical linkage of a variable geometry vane
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Schematic representation of individual vane mistuning
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Engine layout and measured quantities
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VGV fault effects on engine performance: (a) Stage 1, one-vane faults, (b) Stage 1, three vane faults, (c) Stage 4 faults, and (d) IGV faults
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Modification factors percentage deviations: (a) Stage 1, one-vane faults, (b) Stage 1, three vane faults, (c) Stage 4 faults, and (d) IGV faults
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Compressor diagnostic plane
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Turbine diagnostic plane
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Temperature pattern at core turbine outlet for two cases
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Reduced temperature deviations for the case that three vanes of Stage 1 are mistuned
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Reduced temperature deviations for the case in which one vane of the first stage was mistuned
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Reduced temperature deviations for different faults
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Reduced temperature deviations for different burner faults 10
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Temperature spread for the examined cases (healthy and faulty)

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