Share

Performance evaluation of vapor compression heat pump systems using HFC alternative refrigerant mixtures (in cooling mode).

[In Japanese. / En japonais.]

Author(s) : TAIRA S., YAZIMA R., TARUTANI I., et al.

Type of article: Article

Summary

The tested heat pump systems had been modified from R22 use to alternative refrigerants. Refrigerant mixtures of R410A, R407C, R32/R125 and R32/R134a are tested. Pure R22, R32, R125 and R134a refrigerants were tested. The experimental results of alternative refrigerants were evaluated in comparison with the results obtained with R22: 1) the performance of R32 is the highest; 2) adding R125 to R32 and R32/R134a results in the deterioration of the performance; 3) the use of counter flow-like heat exchangers for azeotropic refrigerant mixtures are effective; and 4) in the case of R410A, the modification of the compressor to fit operating pressure heightens the performance. The effects of the performance of components on the COP are also analyzed.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 2002-0126
  • Languages: Japanese
  • Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 18 - n. 1
  • Publication date: 2001
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles in this issue (11)
See the source

Indexing