Thermal conductivity of mixtures of HFC-32 and HFC-125 in the liquid phase

Xianfeng Gao, Kazuyoshi Nomura, Yuji Nagasaka, Akira Nagashima

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The mixtures of HFC-32 (difluoromethane, CH2F2) and HFC-125 (pentafluoroethane, CHF2-CF3) are supposed to be the most promising alternatives to the refrigerant HCFC-22 in refrigeration, heat pump, and air-conditioning systems. Transport properties of the refrigerant are indispensable in the optimisation of the heat transfer coefficient when designing evaporators and condensers. The thermal conductivity of the mixtures of HFC-32 and HFC-125 in the liquid phase in the temperature range 213-293 K and in the pressure range 2-30 MPa with HFC-32 mass fractions of 0.249, 0.500, and 0.750, respectively, have been measured.

Original languageEnglish
Pages (from-to)39-44
Number of pages6
JournalHigh Temperatures - High Pressures
Volume29
Issue number1
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Physical and Theoretical Chemistry

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