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Compressor Fouling in Gas Turbines Offshore: Composition and Sources From Site Data

[+] Author Affiliations
Olaf Brekke

Norwegian University of Science and Technology (NTNU), Trondheim, Norway

Lars E. Bakken

NTNU, Trondheim, Norway

Elisabet Syverud

Aegidius Consulting, Kongsberg, Norway

Paper No. GT2009-59203, pp. 381-391; 11 pages
doi:10.1115/GT2009-59203
From:
  • ASME Turbo Expo 2009: Power for Land, Sea, and Air
  • Volume 5: Microturbines and Small Turbomachinery; Oil and Gas Applications
  • Orlando, Florida, USA, June 8–12, 2009
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4886-9 | eISBN: 978-0-7918-3849-5
  • Copyright © 2009 by ASME

abstract

Contamination in the intake air causes fouling in the compressor section of gas turbines. The amount and type of fouling present in the compressor section is site-specific, and knowledge of its composition is important in order to achieve efficient intake air filtration. This knowledge is also of great importance when optimizing both online and offline compressor wash regimes. This paper presents the results of an investigation of compressor fouling in two different offshore gas turbine installations. Fouling samples collected from various locations in the gas turbine air intakes, inlet guide vanes, and first compressor rotor stages were analyzed in a laboratory using an electron probe micron analyzer. The structure and composition of the analyzed compressor fouling is determined, and the probable sources of the different elements are identified.

Copyright © 2009 by ASME

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