Conversion of Centrifugal Compress Performance Curves Considering Non-Similar Flow Conditions PUBLIC ACCESS

[+] Author Affiliations
W. Fister

Lehrstuhl für Fluidenergiemaschinen, Bochum, Germany

J. Kotzur

M.A.N. Unternehmensbereich, Oberhausen, Germany

Paper No. 82-GT-42, pp. V001T01A015; 14 pages
  • ASME 1982 International Gas Turbine Conference and Exhibit
  • Volume 1: Turbomachinery
  • London, England, April 18–22, 1982
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7956-6
  • Copyright © 1982 by ASME


Thermodynamic performance testing of centrifugal compressor cannot always be implemented at the same conditions on which the rating of the machine was based. To permit them to be compared to the rated values, the test values must therefore be converted to the respective suction data, gas properties and speeds. Conversion methods applied today which assume similar or approximately similar flow conditions for testing and rating, specify in various instance too narrow limits for this. A new conversion method based on few measurement values was developed to consider the influence exerted by the most important parameters, such as Mach and Reynolds numbers, etc. on energy transfer in the stage and on flow losses. Performance curves converted according to the new method, are compared to actually measured values.

Copyright © 1982 by ASME
Topics: Flow (Dynamics)
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