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The choice of a thermostatic expansion valve for a CFC-12 refrigeration system retrofitted with HFC-134a.

Author(s) : HEWITT N. J., MCMULLAN J. T., MORAN D. G., MURPHY N. E.

Type of article: Article

Summary

The conventional R12 cross-charged valve does work, but with a slight loss of superheat sensitivity. A pure R134a charged valve lacks a constant superheat over a range of evaporator temperatures, and may require a smaller orifice size than the conventional cross-charged valve.

Details

  • Original title: The choice of a thermostatic expansion valve for a CFC-12 refrigeration system retrofitted with HFC-134a.
  • Record ID : 1995-2896
  • Languages: English
  • Source: Int. J. Energy Res. - vol. 17 - n. 3
  • Publication date: 1993/04

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