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Zeotropic blend as R22 substitute: measuring compressor efficiency with an R32-R125-R134a blend.

[In German. / En allemand.]

Author(s) : AHNEFELD G., WOBST E.

Type of article: Article

Summary

The results of compressor tests with a R32-R125-R134a (24-23-53 M%) blend in an experimental installation are reported. Results were, for the most part, positive. True, the refrigerating capacity was considerably lower at lower evaporating temperatures, due to the steep vapour-pressure curve; COPs were nonetheless similar. In addition, volumetric efficiency and isentropic yield are as good as with R22. Final compression temperatures are lower, something which lengthens service life.

Details

  • Original title: [In German. / En allemand.]
  • Record ID : 1995-1497
  • Languages: German
  • Source: Kälte + Klimatechnik (Die) - vol. 47 - n. 9
  • Publication date: 1994/09
  • Document available for consultation in the library of the IIR headquarters only.

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