Engine performance and emission characteristics of a compression ignition engine fuelled with diesel/dimethoxymethane blends

被引：27
|
作者：
Ren, Y
Huang, ZH [1 ]
Jiang, DM
Liu, LX
Zeng, K
Liu, B
Wang, XB
机构：
[1] Xian Jiaotong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China
[2] Xian Jiaotong Univ, State Key Lab Multiphase Flow Power Engn, Xian, Peoples R China
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART D-JOURNAL OF AUTOMOBILE ENGINEERING | 2005年 / 219卷 / D7期
关键词：
performance; emission; diesel/dimethoxymethane blends; compression ignition engine;
D O I：
10.1243/095440705X28367
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The performance and emissions of a compression ignition engine fuelled with diesel/dimethoxymethane (DMM) blends were studied. The results showed that the engine's thermal efficiency increased and the diesel equivalent brake specific fuel consumption (b.s.f.c.) decreased as the oxygen mass fraction (or DMM mass fraction) of the diesel/DMM blends increased. This change in the diesel/DMM blends was caused by an increased fraction of the premixed combustion phase, an oxygen enrichment, and an improvement in the diffusive combustion phase. A remarkable reduction in the exhaust CO and smoke can be achieved when operating on the diesel/DMM blend. Flat NOx/smoke and thermal efficiency/smoke curves are presented when operating on the diesel/DMM fuel blends, and a simultaneous reduction in both NOx and smoke can be realized at large DMM addition. Thermal efficiency and NOx give the highest value at 2 per cent oxygen mass fraction (or 5 per cent DMM volume fraction) for the combustion of diesel/DMM blends.
引用
收藏
页码：905 / 914
页数：10
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