Effect of Additives on Flow Properties of Different Mixture of Diesel-Biodiesel- Oils and Ethanol Blends at Low Temperatures

The effect of concentration of two chemical additives polymethacrylate (PMA) and polyalphaolefm (PAO) on the cloud point, pour point and kinematic viscosity petroleum diesel/jatropha/karanjabiodiesel/jatropha/ karanjaoil/ ethanolblendsandpetroleumdieseljatropha/karanjabiodiesel/jatropha/karanja oil/ethanol blends at low temperatures of the variation of the cloud point of diesel-Jatropha biodiesel blends (B0, B5, B10, B15 and B20) passes through minimum with increase in the PMA concentration at a PMA concentration of about 5 g/L The kinematic viscosity of PD, JBD, Ethanol and their blends have been determined experimentally. It can be seen that the pour point decreases significantly compared to that of PD while the cloud point increases, which is in concordance with earlier results. Consequently, cloud point for E05JBD15PD80, E10JBD10PD80 and E15JBD5PD80 is similar to that of neat diesel fuel. it can be observed that in general the kinematic viscosity of the blends increased with an increase in ethanol composition in the blends however in absence of JBD. When the percentage of biodiesel was increased, the viscosity increased, which is due to the fact that the JBD has a higher viscosity than the other two components. These findings suggest that the higher viscosity can lead to inferior fuel injection.