Effect of Injection Strategy on Emission Characteristics of Compression Ignition Engine Fueled with Blended Fuel

被引：0

作者：

Zhang Q. ^{[1
]}

Ying H. ^{[1
]}

Yu L. ^{[2
]}

Li C. ^{[1
]}

Wang Z. ^{[2
]}

Shuai S. ^{[2
]}

机构：

[1] School of Mechatronics and Automobile Engineering, Yantai University, Yantai

[2] State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing

来源：

Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2018年 / 36卷 / 03期

关键词：

Diesel engine; Gasoline compression ignition; Injection pressure; Injection timing; Particle size distribution;

D O I：

10.16236/j.cnki.nrjxb.201803025

中图分类号：

学科分类号：

摘要：

This experiment focused on the influence of fuel injection parameters on the particulate matter emissions, especially the fuel injection timing, injection pressure and EGR ratio. The experiment was conducted on a fourcylinder diesel engine with a mixing fuel named G80, which is composed of 80%, gasoline and 20%, diesel in volume. The experimental results show that when increasing the injection pressure, the modal particle number concentration peak shifts toward the small particle size, the quantity of modal particles decreases, and the NOx emission increases significantly. When the EGR ratio increases from 10%, to 30%,, the modal particle number concentration peak shifts toward the large particle size, and the modal particle number also increases. Especially, when the EGR ratio increases from 25%, to 30%,, the number of particles sharply increases, and the increase of EGR rate also reduces the formation of NOx. The experiment results also show that when advancing the first injection timing, the particulate matter emissions change little and the NOx emissions reduce. When advancing the second injection timing, the modal particle number concentration peak shifts toward the small particle size, the number of modal particles decreases, and the NOx emission has a large increase. © 2018, Editorial Office of the Transaction of CSICE. All right reserved.

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页码：193 / 199

页数：6

共 17 条

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