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  • 1
    Digitale Medien
    Digitale Medien
    Liquid Thermal Conductivity of Ternary Mixtures of Difluoromethane (R32), Pentafluoroethane (R125), and 1,1,1,2-Tetrafluoroethane (R134a)1 (2000)
    Springer
    International journal of thermophysics 21 (2000), S. 319-328 
    Details
    ISSN: 1572-9567
    Schlagwort(e): correlation ; R125 ; R134a ; R32 ; refrigerant ; ternary mixture ; thermal conductivity ; transient hot-wire method
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract The thermal conductivities of ternary refrigerant mixtures of difluoromethane (R32), pentafluoroethane (R125), and 1,1,1,2-tetrafluoroethane (R134a) in the liquid phase have been measured by the transient hot-wire method with one bare platinum wire. The experiments were performed in the temperature range of 233 to 323 K and in the pressure range of 2 to 20 MPa at various compositions. The measured data are correlated as a function of temperature, pressure, and composition. From the correlation, we can calculate the thermal conductivity of pure refrigerants and their binary or ternary refrigerant mixtures. The uncertainty of the measurements is estimated to be ±2%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1006619209872
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  • 2
    Digitale Medien
    Digitale Medien
    Liquid Thermal Conductivity of Binary Mixtures of Pentafluoroethane (R125) and 1,1,1,2-Tetrafluoroethane (R134a) (1999)
    Springer
    International journal of thermophysics 20 (1999), S. 55-62 
    Details
    ISSN: 1572-9567
    Schlagwort(e): mixture ; R125 ; R134a ; R125+R134a ; refrigerant ; thermal conductivity ; transient hot-wire method
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract Thermal conductivities of zeotropic mixtures of R125 (CF3CHF2) and R134a (CF3CH2F) in the liquid phase are reported. Thermal conductivities have been measured by a transient hot-wire method with one bare platinum wire. Measurements have been carried out in the temperature range of 233 to 323 K and in the pressure range of 2 to 20 MPa. The dependence of thermal conductivity on temperature, pressure, and composition of the binary mixture is presented. Measured thermal conductivity data are correlated as a function of temperature, pressure, and overall composition of the mixture. The uncertainty of our measurements was estimated to be better than 2%.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1021469928377
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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