Numerical Simulation for Effect of Fuel Injector Parameters on Combustion and NOx Emissions of STC Diesel Engine
A numerical simulation model for the sequential turbo charging (STC) diesel engine was established by STAR-CD and the initial boundary condition of the model was calculated by the GT-POWER. The experiment results were compared to multi-dimensional model results. Based on the model, the effects on the combustion process and the NOx emissions, including inject cone angle and inject timing were studied. The model results showed that the inject timing and the inject cone angle played an important role during the combustion process and NOx emissions characteristic. The larger inject cone angle will increase the mean pressure and temperature of the cylinder, at the same time the NOx emissions increased relatively. If the larger inject timing was too small also caused engine overheating and the NOx emissions increased. Therefore, the inject timing and the inject cone angle should be appropriate selected.
STC diesel engine Fuel injector parameter Numerical simulation Combustion process NOX emissions characteristic
Xinguang Li Yinyan Wang Yang Wang
Department of Energy and Power Engineering Harbin Engineering University Harbin,Heilongjiang Province,China
国际会议
2010 IEEE信息与自动化国际会议(ICIA 2010)
哈尔滨
英文
1-6
2010-06-20（万方平台首次上网日期，不代表论文的发表时间）