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A Method of Predicting the Energy Losses in Vaneless Diffusers of Centrifugal Compressors PUBLIC ACCESS

[+] Author Affiliations
Huashu Dou

Northeast University of Technology, Shenyang, Liaoning

Paper No. 89-GT-158, pp. V001T01A063; 7 pages
doi:10.1115/89-GT-158
From:
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7913-9
  • Copyright © 1989 by ASME

abstract

The flow losses in the veneless diffusers of centrifugal compressors is investigated. It is found that the total energy loss in vaneless diffusers is a function of Bsin2 α0 when inlet flow conditions and radius ratio between inlet and outlet are given. A wall friction coefficient equation is derived and a method of predicting the total energy loss excepting mixing loss is presented. A comparison is made between results obtained from this method and experimental data generated by the author as well as data from the literature. Good agreement is obtained.

Copyright © 1989 by ASME
This article is only available in the PDF format.

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