Thermal conductivity of ternary refrigerant mixtures of HFC-32/125/134a in the liquid phase

X. Gao, Yuji Nagasaka, A. Nagashima

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The liquid thermal conductivity of two ternary mixtures of HFC-32/125/134a (23.0/25.0/52.0 and 19.0/43.8/37.2 wt%) was measured using a transient hot-wire instrument in the temperature ranges from 193 to 293 K and from 213 to 293 K, respectively, and in the pressure range from 2 to 30 MPa. The thermal conductivity has an estimated uncertainty of ±0.7%. For engineering purposes, the thermal conductivity data were correlated using a polynomial in temperature and pressure for each mixture with a standard deviation of 0.6%.

Original languageEnglish
Pages (from-to)1417-1424
Number of pages8
JournalInternational Journal of Thermophysics
Volume20
Issue number5
Publication statusPublished - 1999

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refrigerants
Refrigerants
Thermal conductivity
liquid phases
thermal conductivity
Thermal conductivity of liquids
Liquids
Polynomials
Wire
Temperature
standard deviation
polynomials
wire
engineering
temperature
liquids
Uncertainty

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Physical and Theoretical Chemistry
  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy (miscellaneous)

Cite this

Thermal conductivity of ternary refrigerant mixtures of HFC-32/125/134a in the liquid phase. / Gao, X.; Nagasaka, Yuji; Nagashima, A.

In: International Journal of Thermophysics, Vol. 20, No. 5, 1999, p. 1417-1424.

Research output: Contribution to journalArticle

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