National Conference On Recent Trends And Developments In Sustainable Green Technologies

In recent days, current research is going in alternative fuels due to increase in global warming and pollution in all over the world and also very stringent emission norms. In this way, the study on spray progress plays an important role in improving complete combustion and emission of fuel, because it is directly affects the air-fuel mixture formation. The macroscopic spray characteristics of fuel primarily depends on the fuel injection process, fuel density, viscosity, ambient pressure and temperature and some other parameter too. The main aim of this work is to study the injection pressure of the spray characteristics at ambient condition of diesel and Jatropa Oil Methyl Ester (JOME) fuelled in spray chamber under non evaporating condition. The spray characteristics such as spray tip penetration and spray cone angle were measured by using image processing technique (Mie scattering). Moreover, spray development were identified using dimensionless analysis by evaluating the role of the leading forces assisting the liquid jet breakup. The primary forces such as surface tension, aerodynamic drag and inertia force, which indirectly influence the Reynolds number and Weber number. The effect of the spray tip penetration and spray cone angle were more perceptive for Weber number compared with Reynolds number. This analysis bring forth dimensionless correlation for spray tip penetration and spray cone angle that initiate in higher spray break up and atomization process.