OPTIMIZATION OF ENGINE PARAMETERS FOR THE SUITABILITY OF BIODIESEL

This dissertation presents the optimization of injection timing and injection pressure of CI engine. By modifying the two engine parameters (injection timing & injection pressure) the engine performance has been determined. The several charts have been plotted between engine Load and various engine performance parameters such as B.P, I.P, & S.F.C. By advancing and retarding the injection timing of fuel and by increasing and decreasing the injection pressure various data have been obtained. By observing all data obtained by the engine modification, an optimize situation injection timing and injection pressure has been set. In the second half, the project fuel modification has been done by blending the conventional fuel with the biodiesel. I have used Jatropha biodiesel for the blending with diesel. B100 blends are used to determine the engine performance on various loads. B100 blend has been tested on 2-stroke single cylinder CI engine. Before starting the each and every test engine runs on no load condition for half an hour to obtain the actual running condition of an engine. The graphs between B.P, I.P, & S.F.C. and engine loads have been drawn for B100 and diesel. By comparing all charts I have made some conclusion that which blends performed best. Some blends having low emission of SOX, NOx but having less B.P reading, on another hand some blends having high B.P reading but they having high emission of SOX, NOx. I have made several compressions between loads and performance parameters of the engine and then finally made a conclusion that B20 blends is good in all aspects whether it is emission or power of engine. Jatropha plant can grow in barren farm so we can do the plantation of Jatropha in that kind of areas, farmers can utilize their farm and earn money as well.