Revisiting the Liu-Silva-Macedo Model for Tracer Diffusion Coefficients of Supercritical, Liquid, and Gaseous Systems

abstract

This work comprises two main purposes: to present the largest database of tracer diffusion coefficients ever published, comprehending 5279 experimental points and 296 binary systems, and provide the necessary Lennard-Jones diameter and energy, and the interaction parameter of the Liu-Silva-Macedo correlation (TLSM(d)), since it affords reliable and very good results for all systems studied (the global deviation found was 3.89%). For comparison, the well-known equations of Dymond-Hildebrand-Batschinsky, Zhu and co-workers, and Tyn-Calus have been adopted.

keywords

DENSE FLUID MIXTURES; SELF-DIFFUSION; MULTIPARAMETER CORRELATION; PREDICTING DIFFUSIVITIES; LENNARD-JONES; SUBSTANCES; VISCOSITY; EQUATION; GAS

subject category

Engineering

authors

Magalhaes, AL; Cardoso, SP; Figueiredo, BR; Da Silva, FA; Silva, CM

our authors

acknowledgements

A.L.M. wants to acknowledge with thanks the financial support granted by Fundacao para a Ciencia e a Tecnologia (SFRH/BD/46776/2008).

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