Comparison of different versions of Przezdziecki-Sridhar equation for prediction of pure liquid viscosities

Three Different versions of Przezdziecki-Sridhar equation for prediction of pure liquid viscosities were obtained with replacement of different liquid volume correlations in the original equation. These new versions and the original equation were applied to certain hydrocarbon materials and the results were compared with the experimental data. Two of these correlations proved to be more accurate than the original equation. Comparison of the results obtained from this equation in deferent modifications present comparable error, depending hydrocarbon compound. Results from calculations and experimental viscosity data, represent reducing average error.

Keywords:

viscosity , Przezdziecki-Sridhar equation , Molar liquid volume