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Mitigation of Marine Gas Turbine Water Wash Risks

[+] Author Affiliations
Lance Shappell

U.S. Navy, Philadelphia, PA

Lee Myers, Jason Hunter

CSC Advanced Marine Center

Paper No. GT2006-91167, pp. 125-129; 5 pages
doi:10.1115/GT2006-91167
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 5: Marine; Microturbines and Small Turbomachinery; Oil and Gas Applications; Structures and Dynamics, Parts A and B
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4240-1 | eISBN: 0-7918-3774-2
  • Copyright © 2006 by ASME

abstract

The US Navy Landing Craft, Air Cushion (LCAC) engines, like all marine gas turbines, use water washes to preserve performance and increase reliability by removing salt and other contaminants from the compressor. Due to the severity of the operating environment and unfavorable operations base, water washing can pose risks to the LCAC engines. Galvanic corrosion, crevice corrosion, insufficient contaminant removal and incompatibility among seal materials, contaminants and wash solvents can outweigh the benefits of water wash. The US Navy has incorporated water wash procedures and materials such as silicon rubber seals and glass fiber and Teflon bushings to mitigate these risks.

Copyright © 2006 by ASME

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