Effects of butanol/diesel blends on combustion and particulate emission characteristics of compression ignition engine

被引：0

作者：

Wang Q. ^{[1
]}

Sun W.-C. ^{[1
]}

Guo L. ^{[1
]}

Cheng P. ^{[1
]}

Fan L.-Y. ^{[1
]}

Li G.-L. ^{[1
]}

机构：

[1] State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2019年 / 49卷 / 06期

关键词：

Butanol/diesel blends; Compression ignition engine; Particle emission characteristics; Power machinery and engineering;

D O I：

10.13229/j.cnki.jdxbgxb20180907

中图分类号：

学科分类号：

摘要：

The effects of butanol/diesel blends on engine combustion and particulate emission characteristics under different operating conditions and blended ratios were investigated on a four-cylinder, common rail, turbocharged diesel engine. The results indicates that the increase in butanol blended ratio leads to prolonged ignition delay, increased premixed combustion and delayed combustion phase, the effect of which is more significant under low load conditions. Butanol/diesel fuel can dramatically reduce exhaust smoke and particulate emissions without increasing NOx emissions, however, the thermal efficiency is slightly lower than that of pure diesel. Most of the particulate emissions from butanol/diesel blended fuel are ultrafine particles, with a ratio of more than 99%. With the increase in butanol ratio, the number concentration of particles in each particle diameter range decreases, which is more distinctive under high load condition. The concentration of accumulated particles and total particles increase significantly with the introduction of Exhaust Gas Re-circulation (EGR). However, the addition of butanol enhanced the tolerance of the mixed fuel to EGR. Butanol/diesel blend fuel combined with EGR strategy can reduce NOx and particulate emissions simultaneously. © 2019, Jilin University Press. All right reserved.

引用

页码：1920 / 1928

页数：8

共 21 条

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