Empirical correlations between viscosity, density and the cloud point of diesel oil mixtures with the straight vegetable oils (SVO): Palm, Cabbage palm and Copra

Although the valuation of straight vegetable oils (SVOs) into gasoil is a subject which dates from the invention of the motor current remains difficult to control due to the fluctuations of fossil fuel costs. In the search for use of SVO in substitution for gasoil, previous studies have shown that the viscosity, density and cloud point are key parameters in the use of biofuels.Having established predictive models for these parameters in our previous work on dilution of SVO in diesel, our goal in this article is to look for correlations between these parameters. Viscosity, density and cloud point measurements were made on tropical vegetable oils mixed with gasoil. The results obtained for each blend diesel/SVO from the cloud point to 353K (mean temperature of running diesel) allow justifying the existence of correlations between these key parameters of such biofuel