### Abstract

The liquid thermal conductivity of mixtures of HFC-32/125 and HFC-32/134a was measured using the transient hot-wire apparatus in the temperature ranges from 213 to 293 K and from 193 to 313 K, respectively, in the pressure range from 2 to 30 MPa and with HFC-32 mass fractions of 0.249, 0.500, and 0.750 for each system. The uncertainty of the thermal conductivity was estimated to be ±0.7%. For practical applications, the thermal conductivity data for the two mixtures were represented by a polynomial in temperature, pressure, and mass fraction of HFC-32 with a standard deviation of 1.0%.

Original language | English |
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Pages (from-to) | 1403-1415 |

Number of pages | 13 |

Journal | International Journal of Thermophysics |

Volume | 20 |

Issue number | 5 |

DOIs | |

Publication status | Published - 1999 Jan 1 |

### ASJC Scopus subject areas

- Condensed Matter Physics

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## Cite this

Gao, X., Nagasaka, Y., & Nagashima, A. (1999). Thermal conductivity of binary refrigerant mixtures of HFC-32/125 and HFC-32/134a in the liquid phase.

*International Journal of Thermophysics*,*20*(5), 1403-1415. https://doi.org/10.1023/A:1021432920199