Estimation method for the kinematic viscosity of a liquid-phase mixture

✍ Scribed by J.L. Chevalier; P. Petrino; Y. Gaston-Bonhomme

• Publisher: Elsevier Science
• Year: 1988
• Tongue: English
• Weight: 580 KB
• Volume: 43
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(88)85104-2

✦ Synopsis

The aim of this work is to propose a method of prediction of the kinematic viscosity of a liquidphase mixture from the known viscosity ofthe pure components. Thecomputation ofthe excess term relative to viscosities is based on Eyring's theory. We represented the deviation to ideality by a group contribution method similar to UNIFAC's method used to predict thermodynamical equilibria. The parameters related to the geometry of the molecules engaged in the mixture as well as the parameters of interaction between functional groups of the molecules have been fitted to our experimental values. The latter are determined for linear, branched, cyclic and aromatic hydrocarbons, ketones, esters and chlorinated alkanes. For all the systems studied, the agreement between experimental and calculated kinematic viscosities is better than that obtained with all published correlations.