Aerodynamic Tests on Centrifugal Process Compressors: Influence of Diffusor Diameter Ratio, Axial Stage Pitch and Impeller Cut-Back PUBLIC ACCESS

[+] Author Affiliations
Peter Lindner

Borsig GMBH, Berlin, West-Germany

Paper No. 83-GT-172, pp. V001T01A053; 12 pages
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 1: Turbomachinery
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7951-1
  • Copyright © 1983 by ASME


Almost all process compressors manufactured today are built in accordance with the fixed geometry modular system.

It is not always possible to accurately predict the operational behaviour of a compressor particularly in such cases where a deviation from the standard solution is advisable or even necessary.

This paper describes and analyses by means of experimental measurements the influence of three different stage modifications (axial stage pitch, shortening of the vaneless annular diffusor, blading cut-back).

The results given here are directly related to engineering practice as they enable the design engineer to apply realistic efficiencies even for modified stages in the early planning stage.

Copyright © 1983 by ASME
This article is only available in the PDF format.



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