| Abstract |
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This research focused on the effects cone angle using split injection on combustion in a direct injection diesel engine. Simulation has been carried on two different cone angles 150 and 70degrees. Duration of injection, starting of injection, dwell, and spray cone angle and nozzle hole diameter are some of the important parameters which improves the engine performance consequently pollution levels gets decreased. As far as cone angle is concerned the cone angle should be optimum and nozzle diameter should be optimized so as to achieve maximum efficiency for an optimum pressure. Even though EGR plays a major role in reducing pollution levels to some extent in terms of NOx and soot, in this work EGR has been considered as zero percentage because as EGR increases particulate matter. It also dilutes the fresh charge which has been taken inside the engine. Split injection takes care of reducing particulate matter without increase in NOx levels .In this research simulation for two different cone angles have shown good agreement with experimental results. Key words: Split injection, Dwell, Start of injection, Duration of injection, Spray cone angle EGR,CFD |
