Study on feedback control parameters of EGR system for diesel engine

被引：0
作者：
An, Xiao-Hui [1 ]
Liu, Bo-Lan [1 ]
Zhang, Fu-Jun [1 ]
Li, Ji-Peng [1 ]
机构：
[1] School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing
来源：
Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering | 2015年 / 36卷 / 03期
关键词：
Diesel engine; Exhaust gas recirculation(EGR); Feedback parameter; IC engine; NO[!sub]x[!/sub] emissions; Oxygen mass fraction;
D O I：
10.13949/j.cnki.nrjgc.2015.03.010
中图分类号：
学科分类号：
摘要：
In order to study effect of EGR on NOx emissions in diesel engine with different intake charge components, a simulation model was built up based on GT-Power software and verified by experimental data.Using the model, the intake charge states in different EGR rates were analyzed, further to find NOx emissions varying trend with intake flow variation with taking intake O2 mass fraction and EGR rate as the control objectives respectively. Simulation results show that while the intake flow constant NOx emissions are mainly influenced by O2 mass fraction, dilution effect is far more than thermodynamics and chemical effects. Under transient conditions, owing to selection of EGR rate as the control parameter is limited, the intake O2 mass fraction has closer correlation with NOx emissions, it is more suitable to be selected as control parameter reflecting NOx emission formation. ©, 2015, Chinese Society for Internal Combustion Engines. All right reserved.
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页码：58 / 62
页数：4
相关论文
共 10 条
  • [1] Jacobs T., Assanis D., Filipi Z., The impact of exhaust gas recirculation on performance and emissions of a heavy-duty diesel engine, (2003)
  • [2] Sun W.C., Zhu C.J., Liu Z.C., Et al., EGR Transient response characteristics of automotive diesel engine, Automotive Engineering, 29, 4, pp. 333-336, (2007)
  • [3] Rakopoulos C.D., Giakoumis E.G., Diesel Engine Transient Operation, (2009)
  • [4] Giakoumis E.G., Alafouzos A.I., Comparative study of turbocharged diesel engine emissions during three different transient cycles, International Journal of Energy Research, 34, 11, pp. 1002-1015, (2010)
  • [5] Maiboom A., Tauzia X., Hetet J.F., Experimental study of various effects of exhaust gas recirculation (EGR) on combustion and emissions of an automotive direct injection diesel engine, Energy, 33, 1, pp. 22-34, (2008)
  • [6] Ladommatos N., Abdelhalim S., Zhao H., The effects of exhaust gas recirculation on diesel combustion and emissions, International Journal of Engine Research, 1, 1, pp. 107-126, (2000)
  • [7] Rakopoulos C.D., Hountalas D.T., Taklis G.N., Et al., Analysis of combustion and pollutions formation in a direct injection diesel engine using a multi-zone model, International Journal of Energy Research, 19, 1, pp. 63-88, (1995)
  • [8] Kouremenos D.A., Hountalas D.T., The effect of EGR on the performance and pollutant emissions of heavy duty diesel engines using constant and variable AFR, (2001)
  • [9] Zhang W., Shu G.Q., Han R., Et al., Influence of high-rate cold EGR & oxygen-enriched intake on diesel engine combustion and emission characteristics, Chinese Internal Combustion Engine Engineering, 32, 4, pp. 12-16, (2011)
  • [10] Nakayama S., Fukuma T., Matsunaga A., Et al., A new dynamic combustion control method based on charge oxygen concentration for diesel engines, (2003)
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