A Study Concerning Performance Characteristics of Centrifugal Compressors PUBLIC ACCESS

[+] Author Affiliations
Shimpei Mizuki

Hosei University, Koganei, Tokyo, Japan

Hikaru Imai

Fuji Heavy Industry, Mitaka, Tokyo, Japan

Paper No. 85-GT-97, pp. V001T03A030; 11 pages
  • ASME 1985 International Gas Turbine Conference and Exhibit
  • Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery
  • Houston, Texas, USA, March 18–21, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7938-2
  • Copyright © 1985 by ASME


A method for estimations of performance characteristics of centrifugal compressors was examined by comparing the estimated results with those by experiments. Lots of empirical and semi-empirical factors which were introduced to the losses within compressor channels in the estimations, and the experimental results for the compressors with a wide variety of configurations, operating conditions and design techniques were investigated. After the extensive comparisons, the most appropriate combinations of the factors for the present method were given.

By employing this method, the major factors which are directly related to the performance characteristics were computed and the relationships among them were discussed. Thus, the ratio of the relative velocity at the impeller exit to that at the inlet, the non-dimensional relative velocity at the impeller inlet and that at the exit were obtained as the parameters of the slip factor, the flow coefficient and the specific speed.

Copyright © 1985 by ASME
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