Performance Characteristics of Shrouded and Unshrouded Impellers of a Centrifugal Compressor

[+] Author and Article Information
H. Harada

Ebara Corporation, Fujisawa, Japan

J. Eng. Gas Turbines Power 107(2), 528-533 (Apr 01, 1985) (6 pages) doi:10.1115/1.3239765 History: Received December 27, 1983; Online October 15, 2009


The overall performance of shrouded and unshrouded identical impellers of a centrifugal compressor were tested and compared. A closed loop test stand with Freon gas as the working fluid was employed for the experiments. The inlet and outlet velocity distributions of both impellers were measured using a three-hole cobra probe and a hot-film probe to determine the velocity distribution and unsteady flows due to wakes and inlet stall.

Copyright © 1985 by ASME
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