Influence of a Novel Mixed Dialkyl Oxalate on the Combustion and Emission Characteristics of a Diesel Engine

被引:0
作者
Zhou, Ao [1 ]
Guo, Wei [2 ]
Jin, Hui [3 ]
Li, Yangyang [4 ]
Yin, Yingwu [5 ]
机构
[1] Lanzhou Jiaotong Univ, Sch Mech Engn, Lanzhou 730070, Peoples R China
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, CAS Key Lab Design & Assembly Funct Nanostruct, Fuzhou 350002, Peoples R China
[3] Lanzhou Inst Technol, Sch Automot Engn, Lanzhou 730050, Peoples R China
[4] Changan Univ, Shaanxi Key Lab Dev & Applicat New Transportat Ene, Xian 710064, Peoples R China
[5] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Peoples R China
关键词
COMPRESSION IGNITION ENGINE; THERMAL EFFICIENCY; FUEL; INJECTION; PERFORMANCE; BLENDS; BIODIESEL; ETHANOL;
D O I
10.1021/acsomega.2c0447734563
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Oxygen-containing alternative fuels have excellent potential to improve diesel fuel economy and reduce particulate matter (PM) emissions. In this study, a novel mixed dialkyl oxalate (mDAO) as an additive was applied to substitute conventional diesel to investigate the effects of mDAO on the combustion and emission characteristics of a high-pressure common-rail diesel engine. The research conducted suggested that the peak pressure rise rate in the main injection stage and the peak in-cylinder pressure presented the rising tendency with the increased mass fraction of mDAO at most test conditions. With the addition of mDAO, the in-cylinder temperature (T) and brake thermal efficiency (BTE) were higher than that of pure diesel. When the mass fraction of mDAO in the mDAO/diesel blend was 30%, the improvement of BTE was most obvious. The ignition delay was prolonged as the mass fraction of mDAO was increased due to the lower cetane number of the mDAO. In addition, adding mDAO into diesel had an effective impact on the reduction of PM emissions, while the nitrogen oxide (NOx) emissions deteriorated. These results indicate that mDAO is a great potential diesel alternative fuel.
引用
收藏
页码:34563 / 34572
页数:10
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