Effects of asymmetric radial clearance on performance of a centrifugal compressor

[+] Author and Article Information
Cheng Xu

ASME Fellow, University of Wisconsin-Milwaukee, 115 E. Reindl Way, Glendale, WI 53212

Ryo Amano

ASME Life Fellow, University of Wisconsin-Milwaukee, 115 E. Reindl Way, Glendale, WI 53212

1Corresponding author.

ASME doi:10.1115/1.4038387 History: Received August 22, 2017; Revised October 18, 2017


The centrifugal compressors are widely used in industrial applications. The design, manufacturing, and installation are all critical for the compressor performance. Many studies have been carried out in the past to optimize the compressor performance during compressor design. The manufacturing tolerances and installation errors can cause the performance drop. There are many compressor performance distortions are not fully understood due to manufacturing and facilities. In this paper, an asymmetrical radial clearance of the impeller due to manufacturing and installation is studied in details for the performance impacts. The numerical studies and experimental tests indicated that the asymmetric radial clearance impacts the compressor flow field and performance. Experimental results suggested that the manufacturing and installation cause radial clearance asymmetric decreases the compressor performance in whole operating range. The numerical analysis demonstrated that the impeller asymmetric clearance impact performance near the design pressure ratio more than another pressure ratio. The numerical studies showed that the maximum clearance location of asymmetric clearance may impact the compressor performance. The proper asymmetricity of diffuser verse the volute may benefit the compressor performance. The good compressor performances for centrifugal compressors especially for small centrifugal compressors not only need to have a good aerodynamic design but also need to control manufacturing and installation carefully.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.






Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In