Thermodynamic properties of pure hydrofluorocarbons by a perturbed hard-sphere-chain equation of state

摘要: This paper deals with the evaluation of thermodynamic properties pure hydrofluorocarbons. A perturbed-hard-sphere-chain equation state was adapted to these compounds and tested on a large database refrigerants hydrocarbons, reference both volumetric equilibrium properties. The ability proposed model reproduce experimental values is discussed comparison that PHCT presented. contains three parameters, which are only slightly correlated one another. Expressions for predicting parameter as function molecular quantities proposed. results obtained show can be reliably used calculation refrigerants, starting from Bondi volume surface area values, plus single vapour pressure value. promising in view application mixtures long-chain hydrocarbons. In this respect, regarded necessary step toward prediction mixture behaviour effect presence lubricant oil mixture.