Share

IIR document

Results of experimental and theoretical studies of the azeotropic refrigerant R507.

Author(s) : DÖRING R., BUCHWALD H., HELLMANN J.

Type of article: Article, IJR article

Summary

For a blend containing R143a and R125 (50-50% by weight), thermodynamic data like vapour pressures, liquid densities, as well as the volumetric behaviour of the gaseous phase, have been experimentally measured and mathematically correlated. This refrigerant blend shows azeotropic behaviour and is known as R507 according to the ASHRAE nomenclature. For use in refrigeration and air-conditoning units in low and medium temperature applications, R507 is a suitable refrigerant. Test results based on measurements from a refrigeration installation have shown that similar operating parameters can be achieved in comparison to R502. The compressor discharge temperatures, pressure ratios and COPs compare well to the traditionally used azeotropic refrigerant R502. Further, the tests have shown that on average the refrigerating capacities of R507 are approximately 5-6% higher than the capacities of R502.

Available documents

Format PDF

Pages: 78-84

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Results of experimental and theoretical studies of the azeotropic refrigerant R507.
  • Record ID : 1997-2734
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 20 - n. 2
  • Publication date: 1997/03

Links


See other articles in this issue (6)
See the source

Indexing