文献类型：期刊文献

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

作者：Zhou, Liying Liang, Yu

第一作者：Zhou, Liying;周立迎

通信作者：Liang, Y[1]

机构：[1]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China;[2]Guiyang Univ, Sch Mech Engn, Guiyang 550005, Peoples R China

第一机构：贵州理工学院机械工程学院

通信机构：corresponding author), Guiyang Univ, Sch Mech Engn, Guiyang 550005, Peoples R China.

年份：2021

卷号：17

期号：1

起止页码：159-170

外文期刊名：FDMP-FLUID DYNAMICS & MATERIALS PROCESSING

收录：EI(收录号：20211110081390);Scopus(收录号：2-s2.0-85102368329);WOS:【ESCI(收录号:WOS:000637024100010)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and publication of this article: this research is funded by the National Natural Science Foundation of China (Nos. 51476072 and 51366002), the Science and Technology Foundation of Guizhou Province (No. [2018] 1006), Supporting Program for Top Scientific and Technological Talents in Universities of Guizhou Province (No. [2018] 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).

语种：英文

外文关键词：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 engines. The 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 indicator. In 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 FIRE. Simulations have been carried out assuming uniform and non-uniform injections rate for the different holes and the different results have been compared. According 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 temperature. Moreover, in such conditions NO emissions are larger while soot emission is slightly lower.