Analysis of Multi-Pulse Injection Strategy for Diesel PCCI Combustion

摘要：

Multi-pulse injection strategy for Premixed Charge Compression Ignition (PCCI) combustion was investigated in a four-valve, direct-injection diesel engine by CFD simulation using KIVA-3V code coupled with detailed chemistry. The effects of fuel splitting proportion, injection timing, spray angles, and injecting velocity were examined. The mixing process and formations of soot and NOx emissions were investigated as the main concern of the research. The results show that the fuel splitting proportion and the injection timing significantly impacted the combustion and emissions due to the considerable changes of the mixing process and fuel distribution in cylinder. While the spray including angle and injection velocity at the injector exit can be adjusted for improving mixing, combustion and emissions, appropriate injection timing and fuel splitting proportion must be jointly considered for optimum combustion performances.

作者: Zhijun Peng Bin Liu Ming Jia Tianyou Wang

作者单位: School of Engineering and Design, University of Sussex, UK State Key Lab of Engines, Tianjin University

会议类型: 国际会议

会议名称: The 3rd International Symposium on Jet Propulsion and Power Engineering(第三届喷气推进与动力工程国际会议 ISJPPE)

会议地点: 南京

会议语种:英文

页码: 413-420

在线出版日期: 2010-09-13（万方平台首次上网日期，不代表论文的发表时间）