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Gas turbine cleaning upgrade (compressor wash)

Abstract

The influence of gas turbine degradation on operating costs is high. Gas turbine cleaning is one of many actions taken for power recovery and is to consider as preventive maintenance. It is generally performed within the industrial field and occasionally within the aero sector. In order to meet the gas turbine development win high blade loads and ever-increasing temperatures, together with emission Aces and environmental regulations, more efficient and careful cleaning methods are needed. Following a survey about potentials for cost reduction in gas turbine operation a new man-hour and water saving cleaning method has been evaluated for a standard process. Compared with traditional cleaning methods, the new method is water,- cost,- weight and space saving due to a new washing technique. Traditional methods are based on using different nozzles for ON and OFF-line cleaning, which rise the demand for complicated systems. In the new method the same nozzle installation, same liquid flow and pressure is used for both ON and OFF-line cleaning. This gives a cost reduction of appr. 20.000 - 30.000 USD per gas turbine depending on installation and size. Evaluation of the new method shows significantly improved ON -line cleaning performance and thus OFF -line cleaning is  More>>
Authors:
Asplund, P [1] 
  1. Gas Turbine Efficiency, Jarfalla (Sweden)
Publication Date:
Dec 31, 1998
Product Type:
Conference
Report Number:
VTT-SYMP-184(v.1); CONF-980999-
Reference Number:
SCA: 290300; 420200; PA: FI-99:003045; EDB-99:035569; SN: 99002064659
Resource Relation:
Conference: 4. Baltica seminar on plant maintenance for managing life and performance, Helsinki (Finland), 7-9 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of BALTICA IV. Plant maintenance for managing life and performance; Hietanen, S.; Auerkari, P. [eds.] [VTT Manufacturing Technology, Espoo (Finland). Operational Reliability]; PB: 332 p.
Subject:
29 ENERGY PLANNING AND POLICY; 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; GAS TURBINES; CLEANING; GAS TURBINE ENGINES; DETERGENTS; WATER; AIR POLLUTION ABATEMENT; COMPRESSORS; TURBINE BLADES; COST BENEFIT ANALYSIS
OSTI ID:
324953
Research Organizations:
Technical Research Centre of Finland, Espoo (Finland)
Country of Origin:
Finland
Language:
English
Other Identifying Numbers:
Other: ON: DE99730862; ISBN 951-38-4577-X; TRN: FI9903045
Availability:
OSTI as DE99730862
Submitting Site:
FI
Size:
pp. 105-117
Announcement Date:

Citation Formats

Asplund, P. Gas turbine cleaning upgrade (compressor wash). Finland: N. p., 1998. Web. doi:10.1115/97-AA-135.
Asplund, P. Gas turbine cleaning upgrade (compressor wash). Finland. doi:10.1115/97-AA-135.
Asplund, P. 1998. "Gas turbine cleaning upgrade (compressor wash)." Finland. doi:10.1115/97-AA-135. https://www.osti.gov/servlets/purl/10.1115/97-AA-135.
@misc{etde_324953,
title = {Gas turbine cleaning upgrade (compressor wash)}
author = {Asplund, P}
abstractNote = {The influence of gas turbine degradation on operating costs is high. Gas turbine cleaning is one of many actions taken for power recovery and is to consider as preventive maintenance. It is generally performed within the industrial field and occasionally within the aero sector. In order to meet the gas turbine development win high blade loads and ever-increasing temperatures, together with emission Aces and environmental regulations, more efficient and careful cleaning methods are needed. Following a survey about potentials for cost reduction in gas turbine operation a new man-hour and water saving cleaning method has been evaluated for a standard process. Compared with traditional cleaning methods, the new method is water,- cost,- weight and space saving due to a new washing technique. Traditional methods are based on using different nozzles for ON and OFF-line cleaning, which rise the demand for complicated systems. In the new method the same nozzle installation, same liquid flow and pressure is used for both ON and OFF-line cleaning. This gives a cost reduction of appr. 20.000 - 30.000 USD per gas turbine depending on installation and size. Evaluation of the new method shows significantly improved ON -line cleaning performance and thus OFF -line cleaning is required only during scheduled stops. (orig.) 10 refs.}
doi = {10.1115/97-AA-135}
place = {Finland}
year = {1998}
month = {Dec}
}