Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Test of a R134a Centrifugal Water Chiller

R134a용 터보냉동기의 성능시험

  • Published : 2001.05.01
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Abstract

A centrifugal water chiller using alternative refrigerant R134a have been developed. The prototype was designed to have refrigeration capacity of 300RT. Its compressor employs a single high-speed impeller, airfoil diffuser and collector. Newly developed enhanced tubes were installed in the evaporator and the condenser to reduce the required head for the compressor. Off-design characteristics at various conditions, performance test of the compressor and analysis of the refrigeration cycle were performed. So the probability of use in part load condition was checked and the direction for revision was suggested.

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References

  1. Proceedings of the SAREK 2000 Summer Annual Conference(Ⅱ) Design of the Centrifugal Compressor for a R134a Turbo-Chiller Lee,Y.;Jeong,J.;Kim,J.;Lee,C.
  2. Thermophysical Properties of Environmentally Acceptible Fluorocarbons (HFC-134a and HCFC-123) Japanese Association of Refrigeration and Japan Flon Gas Association
  3. Handbook 34-1996 Heating, Ventilating and Air-Conditioning Systems and Equipment ASHRAE
  4. Standard for water chilling packages using the vapor compression cycle(Standard 550/590) Air-conditioning and refrigeration institute
  5. Development of high performance heat exchanger(Turbo-B type evaporator/condenser) LG Cable Ltd.