Study on the performance and emissions of a compression ignition engine fuelled with dimethyl ether

被引：37

作者：

Wang, HW ^{[1
]}

Zhou, LB ^{[1
]}

Jiang, DM ^{[1
]}

Huang, ZH ^{[1
]}

机构：

[1] Xian Jiao Tong Univ, Sch Energy & Power Engn, Inst Internal Combust Engines, Xian 710049, Shaanxi, Peoples R China

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING | 2000年 / 214卷 / D1期

关键词：

performance; emissions; dimethyl ether; compression ignition engine;

D O I：

10.1243/0954407001527268

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The paper presents the research results of a light-duty direct injection diesel engine operating on dimethyl ether (DME). The effects of the main parameters of the combustion system, such as plunger diameter, nozzle type, fuel delivery advance angle, protruding distance of the nozzle tip from the bottom plane of the cylinder head and swirl ratio, on the performance of the DME engine are investigated. The indicator diagrams are taken after optimizing the combustion system and characteristics of combustion and emissions are measured for DME and diesel operation. The results show that, by adding a pressure pump in the fuel supply system, the vapour lock of DME in the fuel system is eliminated. The engine runs smoothly on DME over a wide range of speeds and loads. The effective thermal efficiency of the DME engine is 3 per cent higher than that of the diesel engine, and a low rate of pressure rise, low combustion noise, smokeless combustion and low NO, emissions of the DME engine can be achieved. The results demonstrate good characteristics in reducing emissions for a diesel engine operating on DME.

引用

页码：101 / 106

页数：6