机械科学与技术2017，Vol.36Issue(1)：34-38,5.DOI:10.13433/j.cnki.1003-8728.2017.0105
燃烧室对醇醚燃料发动机排放影响的数值模拟
Numerical Simulation of Effects of Combustion Chamber on the Emissions of Alcohol-ether Fuel Engine
摘要
Abstract
In order to study the impact of combustion chamber shape on the alcohol ether fuel engine emissions,the combustion process and emission characteristics of engines with five different combustion chamber shapes were numerically simulated by the software AVL_Fire.The results show that,the effects of combustion chamber shape on the turbulent kinetic energy mainly appear near the TDC.The NO formation area is large and it spreads basically throughout the entire combustion chamber.But Soot is mainly distributed near the high temperature oil beam and the pit wall.Straight chamber A and the open chamber B have lower soot emission but higher NO emission.The narrow caliber and flat base chamber D discharges less NO but more soot.The NO and soot emissions of the narrow caliber and sharp base chamber E are both lower,which means the emission characteristics is better.关键词
燃烧室/醇醚燃料发动机/燃烧过程/排放Key words
combustion chamber/alcohol ether fuel engine/combustion process/emissions分类
能源科技引用本文复制引用
张莉娟,张翠平,刘文坤,田俊龙,王鹏..燃烧室对醇醚燃料发动机排放影响的数值模拟[J].机械科学与技术,2017,36(1):34-38,5.基金项目
2014年度山西省煤基金重点科技攻关项目(MJ2014-14)资助 （MJ2014-14）
