EFFECT OF INJECTION ORIENTATION ON EXHAUST EMISSIONS IN A DI DIESEL ENGINE: THROUGH CFD SIMULATION

P Manoj Kumar, V Pandurangadu, V Bharathi, V Deepthi
2011 International Journal of Applied Engineering and Technology   unpublished
In direct injection (DI) diesel engines theAnalysis of fuel spray with various injection orientations has high influence on engine performance as well as exhaust gas emissions. The fuel injector orientation plays very important role in fuel air mixing. A single cylinder four stroke DI diesel engine with fuel injector having multi-hole nozzle injector is considered for the analysis and a computational fluid dynamics (CFD) code, STAR-CD is used for the simulation. In the present study, various
more » ... ector orientations are considered for the analysis. In-cylinder fuel spray is discussed through the 3D fuel spray distribution plots 95 0 , 100 0 and 110 0 orientation are considered for the analysis. It is concluded that there is an optimal CO, Soot are formed in case of 100 0 orientation. The highest NO is formed in the case of 100 0 orientation. Because of improved combustion process temperatures are attained higher in turn NO formation is higher.
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