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Thermal Conductivity of Ternary Refrigerant Mixtures of HFC-32/125/134a in the Liquid Phase (1999)

Gao, X. ; Nagasaka, Y. ; Nagashima, A.

Springer

International journal of thermophysics 20 (1999), S. 1417-1424

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ISSN: 1572-9567

Keywords: HFC-32/125/134a ; refrigerant ; R-407C ; ternary mixture ; thermal conductivity ; transient hot-wire method

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: 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%.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1021484904269

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