重庆大学学报2013，Vol.36Issue(2)：23-31,9.
油气混合参数对柴油机低温燃烧过程的影响
Effects of fuel injection and intake parameters on low temperature combustion
摘要
Abstract
The effects of fuel injection and intake parameters on low temperature combustion are investigated using CFD modeling in the present study. With the increase of injection pressure or decrease of nozzle hole diameter; the maximum in-cylinder pressure and temperature increase. Heat release from premixed combustion increases at the same oxygen concentration and oxygen concentration that obvious premixed combustion appears increases. As to emissions, soot emission decreases because of the improvement of mixing of fuel and air and NOx emission increases because the increase of local temperature in the cylinder. With the increase of intake pressure; the maximum cylinder pressure increases but the maximum cylinder temperature decreases. The ignition timing advances at the same oxygen concentration. The combustion efficiency increases. As to emissions, both soot and NOx emissions decrease.关键词
CFD/氧浓度/低温燃烧/排放Key words
CFD/oxygen concentration/low temperature combustion (LTC) /emissions分类
能源科技引用本文复制引用
郑朝蕾,吴威龙,李善良,张博..油气混合参数对柴油机低温燃烧过程的影响[J].重庆大学学报,2013,36(2):23-31,9.基金项目
国家科技支撑计划资助项目(2009BAG13B01) （2009BAG13B01）
