This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Design and Test of an Experimental Rotating Diffuser Centrifugal Compressor Test Rig
Annotation ability available
Sector:
Language:
English
Abstract
The mechanical and performance test evaluation of an experimental high pressure ratio single-stage centrifugal compressor incorporating a rotating vaneless-vaned diffuser is discussed. The test rig employed was a turbodrive configuration with the centrifugal impeller driven by a directly-coupled air turbine. The rotating diffuser was supported on a separate shaft operating at approximately 25% impeller speed and directly coupled to a high-speed water brake. Mechanical operation of the compressor rig was satisfactory. Best overall test performance achieved at design speed was a total-total pressure ratio of 7.7 with an adiabatic efficiency of 72.3% (average stage exit Mach number of 0.27). A broad flow range ratio of 1.25 between choke and surge was obtained with the diffuser rotating at design speed.
Recommended Content
Authors
Citation
Rodgers, C., "Design and Test of an Experimental Rotating Diffuser Centrifugal Compressor Test Rig," SAE Technical Paper 760927, 1976, https://doi.org/10.4271/760927.Also In
References
- Rothe, P.H. Johnson, J.P. “Stall in Rotating Two-Dimensional Diffusers” Transactions ASME June 1975 252 255
- Rodgers, C. Impeller Stalling as Influenced by Diffusion Limitations ASME 1976