Simulation Analysis of Influence of Boundary Parameters on the Performance of Gasoline Compression Ignition Engine

4th International Conference on Applied Materials and Manufacturing Technology

材料科学;机械制造

Lei, Peng^1 ; Zhang, Guangde^1 ; Xie, Kunpeng^1 ; Peng, Chunmeng^1 ; Wang, Huan^1

School of Automobile and Traffic Engineering, Wuhan University of Science and Technology, Wuhan, Hubei

430081, China^1

关键词: Boundary parameters;    Combustion efficiencies;    Combustion instabilities;    Compression ignition;    Compression ignition engine;    Engine simulation models;    Heat Release Rate (HRR);    Three-dimensional numerical simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/423/1/012106/pdf
DOI  :  10.1088/1757-899X/423/1/012106

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In order to solve the problems of combustion instability and excessive discharge of gasoline compression ignition (GCI) engine at low load, three-dimensional numerical simulation software CONVERGE is used to establish engine simulation model, and the main factors controlling combustion such as the oxygen content and the intake pressure are simulated and analyzed. The results show that when the volume fraction of the oxygen content of intake is 23%, higher thermal efficiency and lower emissions can be achieved. When the intake pressure is 0.12MPa, the peak of heat release rate is the highest and the combustion efficiency is high. The research results provide basic data and theoretical basis for achieving stable combustion at low load conditions.