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RESEARCH PAPERS

Tailpipe Effects on Gas Turbine Diffuser Performance With Fully Developed Inlet Conditions

[+] Author and Article Information
William J. Kelnhofer

Department of Mechanical Engineering, The Catholic University of America, Washington, D. C.

Charles T. Derick

U. S. Army

J. Eng. Power 93(1), 57-61 (Jan 01, 1971) (5 pages) doi:10.1115/1.3445403 History: Received January 30, 1970; Online July 14, 2010

Abstract

Straight-walled diffuser-tailpipe systems with fully developed inlet conditions as encountered with gas turbine exhaust ducting systems have been tested. For constant length diffusers with varying tailpipe lengths, an increase in recovery and a slight increase in area ratio occurs at maximum performance condition. Test conditions included ratios of diffuser wall length to diffuser inlet width from 5.33 to 15.33. Maximum ratio of tailpipe length to diffuser inlet width was 10.47.

Copyright © 1971 by ASME
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