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Study on performance matching and the zeotropic characteristics of a non-ozone-depleting refrigerant mixture for heat pumps.

[In Chinese. / En chinois.]

Author(s) : ZAN C., SHI L.

Type of article: Article

Summary

A refrigerant mixture with 0 ODP for moderately high temperature heat pumps, named HTR04 (high temperature refrigerant 04), has been developed. Three key problems for the application of HTR04 were investigated, i.e. its direct replacement use in a R134a compressor, its composition shift and temperature glide. The results indicate that the heat pump with an original compressor could provide hot water with about 80°C by filling HTR04 to replace R134a. The changes of the system performance caused by HTR04 composition shift could be accepted in use. The COP could be improved through optimal matching of the glide temperature and the temperature difference of water in the condenser.

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Pages: 8-12

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Details

  • Original title: [In Chinese. / En chinois.]
  • Record ID : 2009-0052
  • Languages: Chinese
  • Source: Journal of Refrigeration - vol. 29 - n. 4
  • Publication date: 2008/08

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