Abstract
Gaseous thermal conductivity of HFC-32, HFC-125 and their mixtures has been measured by a transient hot-wire method at temperatures from 283 to 333K and pressures up to saturation. The uncertainty of the experimental data obtained is estimated to be within 1%. A simple correlation equation was developed to reproduce the experimantal thermal conductivity as a function of temperature, pressure and composition. Generalization of the residual thermal conductivity has been also undertaken by means of the law of corresponding states.
