Aerodynamic Performance of Large Centrifugal Compressors

[+] Author and Article Information
Fumikata Kano, Noriyuki Tazawa, Yoshiteru Fukao

Mechanical Engineering Research Laboratory, Kobe Steel, Ltd., Kobe, Japan

J. Eng. Power 104(4), 796-804 (Oct 01, 1982) (9 pages) doi:10.1115/1.3227346 History: Received November 23, 1981; Online September 28, 2009


The aerodynamic performance of impellers and diffusers of the large centrifugal compressor were studied. A performance design procedure based on the quasi-three-dimensional flow analysis which is combined with the boundary layer theory was developed. The conditions of the boundary layer at the impeller exit and at the diffuser vane throat were calculated, and the three-dimensional measurements were carried out. This result shows that the low momentum flow is accumulated at the corner of the shroud and the blade suction side of the impeller. These results were applied to the development of a large four-stage isothermal compressor which handles the air for an air separation apparatus. This was tested in the field and showed an isothermal efficiency of 76 percent.

Copyright © 1982 by ASME
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