VISCOSITY PREDICTION OF VISCOUS FLUID OF COMMON REFRIGERANT

Abstract

In this study,a Virial-type viscosity Equation of State(EOS)used for predicting the vis- cosity of the viscous fluid of common refrigerant was established via relating the dimensionless residual viscosity with the reduced density.Adopting this equation,only the critical parameters,molecular weight and eccentric factor of the refrigerant are needed to conduct the calculation.Therefore,on the thermodynamic surface,there is an integrated concordance between the calculation of transport property and that of equilibrium property.According to this new equation,the viscosities of nine common refrigerants in liquid phase were calculated.Compared with the experimental data,the total average deviation is 2.36% and the maximum deviation is 27.6%.