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http://dx.doi.org/10.5293/KFMA.2004.7.2.014

Numerical Study on the Performance Characteristics of a Centrifugal Compressor for a R134a Turbo-Chiller  

Lee, Kyoung-Yong (한국기술교육대학교 대학원, 한국생산기술연구원)
Choi, Young-Seok (한국생산기술연구원 청정설계기술팀)
Park, Woon-Jean (한국기술교육대학교 기계공학부)
Publication Information
The KSFM Journal of Fluid Machinery / v.7, no.2, 2004 , pp. 14-20 More about this Journal
Abstract
In this study, the overall performance and the local flow field of the centrifugal compressor with the refrigerant HFC-l34a were numerically studied using CFX-TASCflow. The thermodynamic and transport properties of the refrigerant gas were modeled by REFPROP which is NIST refrigerant properties database. The impacts of a grid qualify, discretization scheme, turbulent model and interaction between a impeller and a cascade diffuser were analyzed comparatively. The results were compared with experimental data and 1-D design results using COMPAL and agreed well with others. The numerical method and data obtained in this study can be applied to the design and modification of centrifugal compressors with real gases
Keywords
R134a refrigerant; Turbo-chiller; Centrifugal compressor; CFD;
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  • Reference
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