TECHNICAL PAPERS: Gas Turbines: Environmental and Regulatory Affairs

Gas Turbine Compressor Washing State of the Art: Field Experiences

[+] Author and Article Information
J.-P. Stalder

Turbotect Ltd., P. O. Box 1411 Ch-540 Baden, Switzerland

J. Eng. Gas Turbines Power 123(2), 363-370 (Nov 01, 2000) (8 pages) doi:10.1115/1.1361108 History: Received March 01, 1998; Revised November 01, 2000
Copyright © 2001 by ASME
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Diakunchak, I. S., 1991, “Performance Deterioration in Industrial Gas Turbines,” ASME Paper No. 91-GT-228.
Tarabrin, A. P., Schurovsky, V. A., Bodrov, A. I., and Stalder, J. P., “An Analysis of Axial Compressor Fouling and a Cleaning Method of their Blading,” ASME Paper No. 96-GT-363.
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Bird, J., and Grabe, W., 1991, “Humidity Effects on Gas Turbine Performance,” ASME Paper No. 91-GT-329.
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Jeffs,  E., 1992, “Compressor Washing On Line for Large Gas Turbine,” Turbomachinery International, 33, (6).
Kolkman, H. J., 1992, “Performance of Gas Turbine Compressor Cleaners,” ASME Paper No. 92-GT-360.
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Typical effect of on line and off line compressor wet cleaning
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Summarizes the pattern of the corrected power output for the complete test period
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Power losses vs. total absolute humidity for 14 comparative operating periods
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Psychrometric chart for air inlet saturating condition
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Material residual percent vs. temperature for water based product. Note that product “C” showed an oil film at 200°C. (WB: Water based cleaner; R-mix: Ready for use WB cleaner.)
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Comparison of cleaning efficiency. (WB: Water based cleaner; DI-water: Demineralized water.)
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Picture of a compressor which was washed on line every four days with detergent during approx. a one month continous operation period
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First stage guide vanes of the same compressor (pictured in 1/3 vane length from the tip and from the root), washed on line every four days with detergent during approx. a one month continous operation period
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On line injection nozzle (patented) allowing orientation and fine tuning of the spray in any direction



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