Particulate emission characteristics of diesel engine fueled with diesel/ethanol blends

被引：0

作者：

Hou X.-J. ^{[1
]}

Xu J. ^{[1
]}

Liu J.-P. ^{[1
]}

Du S.-Z. ^{[1
]}

Li M.-M. ^{[1
]}

机构：

[1] Hubei Key Laboratory of Advanced Technology for Automotive Components, Hubei Collaborative Innovation Center for Automotive Components Technology, Wuhan University of Technology, Wuhan, 430070, Hubei

来源：

Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2016年 / 44卷 / 09期

关键词：

Diesel engines; Diesel/ethanol blends; Particle size distribution; Particulate matter;

D O I：

10.3969/j.issn.1000-565X.2016.09.021

中图分类号：

学科分类号：

摘要：

An experiment in a diesel engine fueled with diesel/ethanol blends was conducted, and the particle concentration and particle size distribution of the particulate matter from the diesel engine were investigated by DMS500 analyzer with fast response particulate. Then, the size distribution, mass concentration and geometric mean diameter of the particulate matter obtained under different running conditions of engine with different ethanol ratios were analyzed. The results show that (1) the particulate matter from diesel/ethanol blends follows a logarithmic distribution, which has two modes, namely, nucleation mode and accumulation mode; (2) with the increase of ethanol ratios, the nucleation mode particle number (PN) density significantly decreases under a low load, while under medium and high loads, the accumulation mode PN density significantly decreases with an increase of the nucleation mode particle ratio and a decrease of the particle size; (3) for the particulate matter from diesel/ethanol blends, the mass concentration is lower than that from diesel, and the particle mass concentrates mostly in the accumulation mode; and (4) after the addition of ethanol to diesel, the geometric mean diameter of particulate matter significantly decreases, and it decreases gradually with the increase of ethanol ratios. © 2016, Editorial Department, Journal of South China University of Technology. All right reserved.

引用

页码：144 / 150

页数：6

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