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RESEARCH PAPERS

Deposition of Volcanic Materials in the Hot Sections of Two Gas Turbine Engines

[+] Author and Article Information
J. Kim, M. G. Dunn, A. J. Baran

Calspan Corporation, Advanced Technology Center, Buffalo, NY 14225

D. P. Wade, E. L. Tremba

Defense Nuclear Agency, Alexandria, VA 22310-3398

J. Eng. Gas Turbines Power 115(3), 641-651 (Jul 01, 1993) (11 pages) doi:10.1115/1.2906754 History: Received February 21, 1992; Online April 24, 2008

Abstract

This paper reports the results of a series of tests designed to determine the melting and subsequent deposition behavior of volcanic ash cloud materials in modern gas turbine engine combustors and high-pressure turbine vanes. The specific materials tested were Mt. St. Helens ash and a soil blend containing volcanic ash (black scoria) from Twin Mountain, NM. Hot section test systems were built using actual engine combustors, fuel nozzles, ignitors, and high-pressure turbine vanes from an Allison T56 engine can-type combustor and a more modern Pratt and Whitney F-100 engine annular-type combustor. A rather large turbine inlet temperature range can be achieved using these two combustors. The deposition behavior of volcanic materials as well as some of the parameters that govern whether or not these volcanic ash materials melt and are subsequently deposited are discussed.

Copyright © 1993 by The American Society of Mechanical Engineers
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