RESEARCH PAPERS: Papers From Symposium on Prediction of Centrifugal Compressor and Pump Stability and Surge

Estimation of Centrifugal Compressor Stability With Diffuser Loss-Range System

[+] Author and Article Information
G. B. Reeves

Pratt & Whitney Aircraft, West Palm Beach, Fla.

J. Fluids Eng 99(1), 76-81 (Mar 01, 1977) (6 pages) doi:10.1115/1.3448563 History: Received November 02, 1976; Online October 12, 2010


A method has been developed by which centrifugal compressor flow range and the nature of the pressure ratio characteristic approaching surge can be predicted by use of fundamental impeller exit conditions and diffuser entrance geometry in a system where minimum to maximum flow range is determined by the diffuser. Experimental results from compressor tests demonstrate the influence of these basic variables on flow range. Data from pipe type diffuser configurations designed under the assumptions of the loss-range method verify the capability to estimate flow range. Results of tests confirm the use of the method to predict the shape of the pressure ratio/weight flow characteristic and the location of maximum efficiency at constant speed.

Copyright © 1977 by ASME
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