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COMPARISON OF R134A AND R12.

[In Serbo-Croat. / En serbo-croate.]

Author(s) : PETERSSON B., THORSELL H.

Type of article: Article

Summary

A COMPARISON OF R134A AND R12 WAS CARRIED OUT, AND THE RESULTS FROM A THEORETICAL ANALYSIS AND FROM TESTS WITH AN OPEN RECIPROCATINGCOMPRESSOR ARE REPORTED IN THE PAPER. THE TESTED COMPRESSOR GAVE A GREATER REFRIGERATING CAPACITY WITH R134A THAN WITH R12 UNDER CERTAIN OPERATING CONDITIONS. HOWEVER, THE RESULTS ALSO INDICATE AN INCREASED OPERATING POWER FOR THE COMPRESSOR OVER THE ENTIRE TEMPERATURE RANGE. AS A RESULT, THE COP IS DECREASED. ANOTHER NOTICEABLE RESULT IS DEPENDENCY OF THE COMPRESSOR'S ISENTROPIC EFFICIENCY ON TEMPERATURE WHEN USING R134A. THIS MIGHT BE EXPLAINED BY THE PROPERTIES OF THE POLYALKENE GLYCOL OIL WHICH IS USED WITH R134A. THE INCREASED COST OF USING R134A IS JUSTIFIED IF THE ENVIRONMENTAL ASPECTS ARE CONSIDERED AND THE PRACTICAL PROBLEMS, SUCH AS THE INFLUENCE ON THE MATERIAL IN THE REFRIGERATION CYCLE, CAN BE SOLVED.

Details

  • Original title: [In Serbo-Croat. / En serbo-croate.]
  • Record ID : 1992-0513
  • Languages: Serbo-croatian
  • Source: KGH (Klimatizacija Grejanje Hladenje) - vol. 20 - n. 1
  • Publication date: 1991/02
  • Document available for consultation in the library of the IIR headquarters only.

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