A Comparative Study of Centrifugal Chiller Performances After CFC Refrigerant Conversion PUBLIC ACCESS

[+] Author Affiliations
K. H. Yang, S. K. Lee, Y. S. Chiang, W. C. Chen

National Sun Yat-Sen University, Kaohsiung, Taiwan, R.O.C.

M. M. Ting

Cheng Shiu Junior College of Technology & Commerce, Kaohsiung, Taiwan, R.O.C.

Paper No. 97-AA-037, pp. V001T13A013; 5 pages
  • ASME 1997 Turbo Asia Conference
  • ASME 1997 Turbo Asia Conference
  • Singapore, September 30–October 2, 1997
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7867-5
  • Copyright © 1997 by ASME


Theoretical analysis indicated that, a typical centrifugal chiller could lose over 8% to 10% of its cooling capacity after converting from R-11 into using R-123 refrigerant. In this study, an attempt to recover some of this capacity loss by slightly decreasing its operating speed was analyzed.

A full-scale experiment was performed to change the gear train of a 300 RT centrifugal chillier, which validated that 3%∼6% capacity recovery could be expected. This is a break-through to promote the chiller conversion for wide engineering applications and is discussed in detail in this paper.

Copyright © 1997 by ASME
Topics: Refrigerants
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