Abstract:

In a day by day price exacerbation of petroleum, jatropha bio-fuel can be used in lace of fossil fuel. While the diesel engine using this fuel, it is necessary that the life time and the safety of the nozzle to be safeguarded. For the better data comparison, numerical method of analysis (CFD) is required to compare the experimental values in terms of pressure, velocity, stresses on walls and strains. The flow pattern of 100% diesel in fuel injector is studied with experimental values in CFD and compared with the blend of 20% jatropha and 80% diesel flow pattern to find the optimum design. Then the optimum design is tested in the running conditioned diesel engine. In this paper, the results of the analysis are to be presented only from the point of “Optimum design spray pattern of 20 % bio-fuel blend with 80 % diesel is comparable to spray pattern of 100 % diesel in the fuel injector”.

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