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Engine Deterioration When Exposed to Particulate Flows

[+] Author Affiliations
Widen Tabakoff

University of Cincinnati, Cincinnati, OH

Paper No. GT2006-91236, pp. 1041-1050; 10 pages
doi:10.1115/GT2006-91236
From:
  • ASME Turbo Expo 2006: Power for Land, Sea, and Air
  • Volume 4: Cycle Innovations; Electric Power; Industrial and Cogeneration; Manufacturing Materials and Metallurgy
  • Barcelona, Spain, May 8–11, 2006
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4239-8
  • Copyright © 2006 by ASME

abstract

The design and development of high performance turbomachinery operating in a particulate flow environment requires a thorough knowledge of the fundamental phenomena associated with solid particulate flows. Because of the serious consequences of turbomachinery erosion on performance and life, it is important to have reliable methods for predicting their erosion when solid particles are ingested with incoming flow. Many of these studies, which are essential to predicting blade surface erosion intensity and patterns, have been conducted at the University of Cincinnati’s Turbomachinery Erosion Laboratory over the past thirty years. A brief review of the experimental work will be presented for the following materials and coatings: Ti6-4 cemented tungsten carbide (85WC, 6TiC, 9 Co) and MAR-M-246. Coatings include TiC, TiN, Al2 O3 , and platinum aluminide (RT-22B). While operating aircraft engines or stationary turbines in dust laden or particulate environments the blades and vanes are prone to deterioration by solid particle erosion, which causes decreased engine performance and higher specific fuel consumption. The coatings presented in this paper are shown to prevent such deterioration and thus prolong engine operating life.

Copyright © 2006 by ASME

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