Effect of indirect non-thermal plasma on particle size distribution and composition of diesel engine particles

作     者：顾林波 蔡忆昔 施蕴曦 王静 濮晓宇 田晶 樊润林 Linbo GU;Yixi CAI;Yunxi SHI;Jing WANG;Xiaoyu PU;Jing TIAN;Runlin FAN

作者机构：School of Automotive and Traffic EngineeringJiangsu UniversityZhenjiang 212013People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2017年第19卷第11期

页      面：59-66页

核心收录：

学科分类：080703[工学-动力机械及工程] 07[理学] 08[工学] 0807[工学-动力工程及工程热物理] 070204[理学-等离子体物理] 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：supported by National Natural Science Foundation of China(No.51676089) the major projects of natural science research in colleges and universities in Jiangsu Province(No.16KJA470002) the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PADA) 

主　　题：diesel engine particulate matter non-thermal plasma gas source flow rate 

摘      要：To explore the effect of the gas source flow rate on the actual diesel exhaust particulate matter（PM）, a test bench for diesel engine exhaust purification was constructed, using indirect nonthermal plasma technology. The effects of different gas source flow rates on the quantity concentration, composition, and apparent activation energy of PM were investigated, using an engine exhaust particle sizer and a thermo-gravimetric analyzer. The results show that when the gas source flow rate was large, not only the maximum peak quantity concentrations of particles had a large drop, but also the peak quantity concentrations shifted to smaller particle sizes from 100 nm to 80 nm. When the gas source flow rate was 10L min^-1, the total quantity concentration greatly decreased where the removal rate of particles was 79.2%, and the variation of the different mode particle proportion was obvious. Non-thermal plasma（NTP） improved the oxidation ability of volatile matter as well as that of solid carbon. However, the NTP gas source rate had little effects on oxidation activity of volatile matter, while it strongly influenced the oxidation activity of solid carbon. Considering the quantity concentration and oxidation activity of particles, a gas source flow rate of 10L min^-1 was more appropriate for the purification of particles.