预混比对乙醇/柴油RCCI排气颗粒物化学成分的影响  

Effects of Premixing Ratio on the Chemical Composition of Ethanol/Diesel RCCI Exhaust Particulate Matter

作　　者：班智博[1] 唐国强 韩伟强[3] 罗强 方嘉 BAN Zhibo;TANG Guoqiang;HAN Weiqiang;LUO Qiang;FANG Jia(Guangxi Yuchai Machinery Co.,Ltd.,Yulin 530000 China;CRRC Ziyang Locomotive Co.,Ltd.,Ziyang 641300 China;Key Laboratory of Automotive Measurement,Control and Safety,Xihua University,Chengdu 610039 China;Sichuan Qinie Technology Co.,Ltd.,Guangyuan 628000 China)

机构地区：[1]广西玉柴机器股份有限公司,广西玉林530000 [2]中车资阳机车有限公司,四川资阳641300 [3]汽车测控与安全四川省重点实验室(西华大学),四川成都610039 [4]四川启涅科技有限公司,四川广元628000

出　　处：《西华大学学报（自然科学版）》2022年第5期28-33,72,共7页Journal of Xihua University:Natural Science Edition

基　　金：国家自然科学基金青年科学基金项目资助(52006182);四川省自然科学基金项目资助(2022NSFSC0196);广元市科技计划重点研发项目资助(21ZDYF0025);四川省科技计划资助(2021YJ0332);机械装备高性能智能制造关键技术湖南省重点实验室(长沙理工大学)开放基金项目资助。

摘　　要：通过对一台六缸重型柴油发动机进行改装,进行乙醇/柴油活性控制压缩点火(reactivity controlled compression ignition,RCCI)试验,分析预混比(premix ratio,R_(p))对乙醇/柴油RCCI排气颗粒物化学成分的影响。结果表明:RCCI颗粒物元素组成主要包括C、O、Si元素,还检测出微量金属Zr;随着R_(p)的增加,RCCI颗粒物C和O元素均增加,Si和Cu元素均减小,Zr元素减少至消失。本文的研究结果有助于加深对RCCI颗粒物化学成分生成理论的理解,为减少RCCI颗粒物排放提供技术支撑。On a modified a six-cylinder heavy-duty diesel engine,the ethanol/diesel Reactivity Controlled Compression Ignition(RCCI) experiment was carried out to study the effects of premixing ratio on the chemical composition of ethanol/diesel RCCI exhaust particulate matter.The results show that the elemental composition of RCCI particles mainly includes C,O,Si elements,and trace metal Zr is also detected;with the increase of R_(p),the elements of C and O in the RCCI particles increase,and the elements of Si and Cu decrease,and the element of Zr decreases to disappear.The research will deepen the understanding of RCCI particulate matter chemical composition’s generation theory and provide technical support for reducing RCCI particulate matter emissions.

关 键 词：预混比 乙醇 RCCI 排气颗粒物 化学成分 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]