This paper focuses on the physical property prediction of waste cooking oil biodiesel and examines the
accuracy of different methods to estimate reliable basic physical properties, including density, viscosity and surface
tension of waste cooking oil biodiesel in a wide range of temperature based on its fatty acid methyl ester component. A
program for the physical property prediction of the biodiesel was developed and experimental measurements for the
density, viscosity and surface tension of the biodiesel were performed to validate the chosen methods. The results show
that the modified Rackett equation and the Orrick-Erbar method have the high estimation accuracy for the prediction of
the density and the viscosity, respectively. The Sastri-Rao method and the Pizer method have the accuracy enough to
predict the surface tension.
Physical property prediction based on molecular simulation for simple model fluids.
