Axial Compressor Deterioration Caused by Saltwater Ingestion

[+] Author and Article Information
Elisabet Syverud, Lars E. Bakken

Department of Energy and Process Engineering, NTNU, Norwegian University of Science and Technology, Trondheim, Norway

Olaf Brekke

Royal Norwegian Navy, Bergen, Norway

J. Turbomach 129(1), 119-126 (Jan 01, 2007) (8 pages) doi:10.1115/1.2219763 History: Received October 01, 2004; Revised February 01, 2005; Online January 08, 2007


Gas turbine performance deterioration can be a major economic factor. An example is within offshore installations where a degradation of gas turbine performance can mean a reduction of oil and gas production. This paper describes the test results from a series of accelerated deterioration tests on a General Electric J85-13 jet engine. The axial compressor was deteriorated by spraying atomized droplets of saltwater into the engine intake. The paper presents the overall engine performance deterioration as well as deteriorated stage characteristics. The results of laboratory analysis of the salt deposits are presented, providing insight into the increased surface roughness and the deposit thickness and distribution. The test data show good agreement with published stage characteristics and give valuable information regarding stage-by-stage performance deterioration.

Copyright © 2007 by American Society of Mechanical Engineers
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