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SAFER REFRIGERANTS: WHICH REFRIGERANT.

Author(s) : PEARSON S. F.

Type of article: Article, Review

Summary

THE AUTHOR SUMMARISES THE PRESENT CHOICE OF REFRIGERANTS TO REPLACE HARMFUL CFCS. THE CONCLUSIONS ARE THAT R134A WILL BE THE MAJOR SUBSTITUTE FOR R12 IN DOMESTIC REFRIGERATORS, FREEZERS, AND SMALL AIR-CONDITIONERS. A MIXTURE OFCHCLF2, C3 F8 AND C3 H8 , KNOWN AS R69S APPEARS TO BE THE MOST PRACTICAL ALTERNATIVE TO R502 FOR COMMERCIAL REFRIGERATION LOW TEMPERATURE SYSTEMS. ALTHOUGH THE GLOBAL WARMING POTENTIAL IS HIGHER THAN ITS MAJOR COMPONENT R22, R69S HAS A HIGHER COP AND BETTER MOTOR COOLING CHARACTERISTICS, MAKING IT MORE FAVOURABLE FOR SEMI-HERMETIC SYSTEMS. FOR LARGER PLANTS, ALTHOUGH R123 IS A POSSIBLE REFRIGERANT FOR CENTRIFUGAL COMPRESSORS, IT IS ANHCFC AND THEREFORE OF LIMITED ACCEPTABILITY. BETTER USE MAY BE MADE OF SCREW COMPRESSORS USING R22 AS AN INTERIM, OR, PROVIDING SAFE SITING IS POSSIBLE, AMMONIA COULD BE THE BEST CHOICE. D.W.H.

Details

  • Original title: SAFER REFRIGERANTS: WHICH REFRIGERANT.
  • Record ID : 1992-1026
  • Languages: English
  • Publication date: 1991/07
  • Source: Source: Refrig. Air Cond.
    vol. 94; n. 1120; 21-23; 2 tabl.
  • Document available for consultation in the library of the IIR headquarters only.

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