Potential of Fuel Stratification for Reducing Pressure Rise Rate in HCCI Engines fueled with DME/n-Butane

摘要：

We investigated the efficacy of fuel stratification in a pre-mixture of Di-mcthyl ether and n-Butane, which have different auto-ignition characteristics, for reducing the pressure rise rate of homogeneous charge compression ignition engines. A new chemical reaction model was created by mixing DME and n-Butanc and compared to existing chemical reaction models to verify the effects. The rate of maximum pressure rise depends on mixture ratio. When DME was charged with stratification and n-butane was charged with homogeneity, the maximum pressure rise rate was the lowest. The calculations were performed using the SENKIN application of CHEMKIN-ll.

关键词： Homogeneous charge compression ignition (HCCI) Di-methyl ether (DME) Pressure rise rate (PRR) Heat release rate (HRR) High temperature reaction (HTR) Low temperature reaction (LTR)

作者: Ocktaeck Lim Kyuyeol Park Narankhuu Jamsran

作者单位: Department of Mechanical and Automotive Engineering University of Ulsan Ulsan,Korea Institute of e-Vehicle Technology University of Ulsan Ulsan,Korea

会议类型: 国际会议

会议名称: The 6th International Forum on Strategic Technology(IFOST 2011)(第六届国际战略技术论坛)

会议地点: 哈尔滨

会议语种:英文

页码: 307-312

在线出版日期: 2011-08-22（万方平台首次上网日期，不代表论文的发表时间）