Performance of a High-Efficiency Radial/Axial Turbine

[+] Author and Article Information
C. Rodgers

Aerothermal and Conceptual Design, Turbomach, Division of Sundstrand Corporation, San Diego, CA 92123

R. Geiser

Turbomach, Division of Sundstrand Corporation, San Diego, CA 92123

J. Turbomach 109(2), 151-154 (Apr 01, 1987) (4 pages) doi:10.1115/1.3262077 History: Received December 26, 1985; Online November 09, 2009


This paper presents the test performance of a lightly loaded, combination radial/axial turbine for a 420-hp, two-shaft gas turbine. This two-stage turbine configuration, which included an interstage duct and an exhaust duct discharging vertically to ambient pressure conditions, was shown to be capable of attaining an overall isentropic efficiency of 89.7 percent. The influence of exhaust diffuser struts on the turbine performance under stalled power turbine conditions was shown to significantly affect compressor and turbine matching.

Copyright © 1987 by ASME
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