Modelamiento de la viscosidad con base en una ecuación cúbica TP del tipo peng-robinson

Translated title of the contribution: Modeling the viscosity based on Peng-robinson type cubic TP equation

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    5 Scopus citations


    A viscosity model based on the Peng-Robinson cubic equation of state is applied. The model has been used to correlate and predict viscosities of pure substances and mixtures especially in the saturation zone. The parameters of the model are generalized in terms of the molar mass. The generalized expressions are estimated by fitting the experimental data for a group of alkanes and alcohols. Average deviations between calculated values and experimental data for alkanes and alcohols are 6.26% and 7.21%. Some predictive calculations are performed for alkanes and alcohols finding average absolute deviation of 3.99% and 13.76%. To extend the model to mixtures, some binary mixtures calculations are performed using three mixing rule approaches. The results obtained with the simple, one and two interaction parameters mixing rules are 18.66%, 10.31% and 3.85%. The results indicate that the new viscosity model provides results that can be considered adequate and consistent taking in account the simplicity of the generalized expressions.

    Translated title of the contributionModeling the viscosity based on Peng-robinson type cubic TP equation
    Original languageSpanish
    Pages (from-to)259-272
    Number of pages14
    JournalInformacion Tecnologica
    Issue number4
    StatePublished - 2019

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    © 2019 Centro de Informacion Tecnologica. All rights reserved.


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