Study on Spray and Exhaust Emission Characteristics of DME-Biodiesel Blended Fuel in Compression Ignition Engine

被引：4
|
作者：
Cha, Junepyo [1 ]
Park, Su Han [1 ]
Lee, Chang Sik [1 ]
Park, Sung Wook [1 ]
机构：
[1] Hanyang Univ, Dept Mech Engn, Seoul, South Korea
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2011年 / 35卷 / 01期
关键词：
Biodiesel; Dimethyl-Ether; Spray Characteristic; Combustion Characteristic; Emission Characteristic;
D O I：
10.3795/KSME-B.2011.35.1.067
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The purpose of this study is to investigate experimentally the spray-atomization and combustion-emission characteristics of biodiesel-DME blended fuel. In this study, two types of test fuels pure biodiesel (BD100) and blended fuel (B-DME20) were used, and the spray and combustion characteristics of different fuel compositions were analyzed. DME constitutes 20% and biodiesel constitutes 80% (by mass fraction) of the blended fuel. The overall spray characteristics, spray tip penetration, and cone angle were evaluated using frozen spray images. In addition, the combustion and emission characteristics were analyzed on the basis of the evaluated data for a single-cylinder CI engine with common-rail injection system. It was revealed that the injection profiles of both the test fuels for a given injection pressure showed similar trends. However, the injection profiles of the blended fuel (B-DME20) indicated shorter ignition delay than those of biodiesel.
引用
收藏
页码：67 / 73
页数：7
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