Study of the Combustion Process inside an Ethanol-Diesel Dual Direct Injection Engine Based on a Non-Uniform Injection Approach

作     者：Liying Zhou Yu Liang 

作者机构：School of Mechanical EngineeringGuizhou Institute of TechnologyGuiyang550003China School of Mechanical EngineeringGuiyang UniversityGuiyang550005China 

出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工（英文）)

年 卷 期：2021年第17卷第1期

页      面：159-170页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(Nos.51476072 and 51366002) the Science and Technology Foundation of Guizhou Province(No.1006) Supporting Program for Top Scientific and Technological Talents in Universities of Guizhou Province(No.062) High-level Talent Research Funding Project of Guizhou Institute of Technology and Key Construction Projects of the First Class University(Phase I)of Guizhou Province in 2017-the First Class Course(Nos.2017158418 and 2017158435) 

主　　题：Combustion process dual direct injection diesel ethanol injection rate 

摘      要：The use of ethanol is a promising method to reduce the emissions of diesel *** present study has been based on the installation of a gasoline electronic injection system in a single-cylinder diesel engine to control the amount of ethanol entering the cylinder during the compression(while diesel has been injected into the cylinder by the original pump injection system).The injection time has been controlled by crank angle signal collected by an AVL angle *** the tests ethanol and diesel each accounted for half of the fuel volume,and the total heat energy supply of the fuel was equivalent to that of the diesel under the operating conditions of the original engine.A three-dimensional combustion model of the diesel engine has been implemented by using the CFD software *** have been carried out assuming uniform and non-uniform injections rate for the different holes and the different results have been *** to these results,a non-uniform injection rate can produce early ignition and cause an increase in the maximum in-cylinder pressure and the maximum average incylinder ***,in such conditions NO emissions are larger while soot emission is slightly lower.