抄録
In 1994, the JSRAE published 'HFCs and HCFCs', JAR Thermodynamic Tables, Vol.1, Version 1.0, providing the thermodynamic properties of 12 refrigerants with the software. At the time, experimental data for new alternative refrigerants were qualitatively and quantitatively limited. Many reliable experimental and theoretical information have been accumulated till present for pure HFCs. The ideal gas heat capacity values with an uncertainty of ±0.2 % and the transport properties are the good examples. New international standards on the molar gas constant or molar masses were defined very recently. As a review paper on the properties of HFCs, simple equations of the ideal-gas heat capacity, vapor pressures, saturated-liquid density, virial coefficients, surface tension, viscosity, thermal conductivity, and the information on the material compatibility and solubility with lubricants are summarized mainly for R32, R125, R134a, R143a, and R152a.
