Abstract
The liquid thermal conductivity of R32 (CH2F2) and R134a (CF3CH2F) was measured in the range from 223 to 323 K and from 2 to 20 MPa by the transient hot-wire method. The thermal conductivity of the R32+R134a mixture was also measured in the same range by varying the mass fraction of R32. The measured data are analyzed to obtain a correlation in terms of temperature, pressure and composition of the mixture. The uncertainty of our measurements is estimated to be within ±2%.
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Ro, S.T., Kim, J.Y. & Kim, D.S. Thermal conductivity of R32 and its mixture with R134a. Int J Thermophys 16, 1193–1201 (1995). https://doi.org/10.1007/BF02081287
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DOI: https://doi.org/10.1007/BF02081287