title: An improved theoretical model for thermal diffusion coefficient in liquid hydrocarbon mixtures: Comparison between experimental and numerical results.
abstract: Thermal diffusion or Soret effect is a phenomenon of mass transport in fluid mixtures driven by temperature gradients. In this paper, we have studied thermal diffusion coefficients for different binary n-alkane mixtures (equal mass fraction) through both theoretical and experimental methods. The theoretical model is based on the irreversible thermodynamics. Particularly, the nonequilibrium thermodynamic property tau is examined and remodeled with a consideration of vapor-liquid equilibrium in binary mixtures. The experimental method is based on the thermogravitational technique. The new model provides a good agreement with the experimental data from this study and in the literature.
authors.affiliation: School of Engineering, University of British Columbia, Kelowna, British Columbia BC V1V 1V7, Canada.
authors.forename: Yu
authors.initials: Y
authors.lastname: Yan
authors.forename: Pablo
authors.initials: P
authors.lastname: Blanco
authors.forename: M Ziad
authors.initials: MZ
authors.lastname: Saghir
authors.forename: M Mounir
authors.initials: MM
authors.lastname: Bou-Ali