This work presents a viscosity prediction model for mixtures based on a three parameters corresponding states format assuming the one-fluid model technique. Pseudocritical properties. obtained from mixing rules applied in predictive mode and avoiding the input of any mixture experimental data, are used for the model. Viscosity equations for mixtures of fluids of a same family, for which a certain viscosity surface conformality has been previously verified, are then obtained with good accuracy. The nonpolar alkanes and the polar halogenated alkanes, also known as refrigerants, are assumed for validation. These two group of fluids were selectee because for some of their components dedicated viscosity equations and dedicated equations of state are avilable as well as experimental viscosity data. T total of 1610 experimental points of several systems has been considered for validation with a global AAD of 4.2percent. The accuracy level reached through this predictive model is similr to the pure fluids viscosity dedicated equations.
展开▼
