Improved combustion and emission characteristics of ethylene glycol/diesel dual-fuel engine by port injection timing and direct injection timing
Improved combustion and emission characteristics of ethylene glycol/diesel dual-fuel engine by port injection timing and direct injection timing
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通过端口喷射正时和直喷正时改善乙二醇/柴油双燃料发动机的燃烧和排放特性
DOI：
10.1016/j.fuproc.2019.106289
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发表时间：
2020-03
影响因子：
7.5
通讯作者：
Limin Geng
中科院分区：
文献类型：
--
作者：
Peng Zhang;Jingjing He;Hao Chen;Xuan Zhao;Limin Geng
在这项研究中，一台柴油-乙二醇式双燃料发动机的四个低能量比(分别命名为EG0，EG5，EG10和EG15)试图通过喷油正时(PIT)和直接喷油正时(DIT)来改善发动机的性能。燃烧结果表明，DIT对燃烧过程的影响比PIT更大。气缸最大压力、最大放热率和压力升高率随着EG能量比的增大和DIT的增大而增大。燃烧持续期随着EG能量比的增大和DIT的提前而缩短。通过提高EG能量比和推进DIT，可使制动热效率提高19.45%。在排放方面，NOx、THC、CO2和碳烟的排放量随着EG能量比的升高而减少，而CO的排放量则增加。DIT比PIT对发射的影响更明显。随着DIT的增加，碳烟和THC的排放减少，而CO2和NOx的排放增加。先进的DIT可以减少PM，EG可以减少PM的平均直径总体而言，先进的DIT、合适的EG能量比和合适的PIT有望实现DEG双燃料发动机在性能和排放方面的优化。
In this study, the performance of a diesel–ethylene glycol (DEG) dual-fuel engine with four low EG energy ratios (named EG0, EG5, EG10 and EG15 respectively) is tried to improve by port injection timing (PIT) and direct injection timing (DIT). The combustion results show that combustion process is even highly affected by DIT than by PIT. Peak cylinder pressure, peak heat release rates (PHRRs) and pressure rise rate increase with the augmentation of EG energy ratios and advanced DIT. Combustion duration decreases with the increase of EG energy ratios and advanced DIT. Brake thermal efficiency (BTE) can be improved 19.45% by raising EG energy ratios and advancing DIT. In consideration of emission, the emissions of NOx, THC, CO2and soot decrease followed by the rise of EG energy ratio at the same time, while CO emission increases. The emission is more obviously affected by DIT than PIT. The emission of soot and THC decreases with advanced DIT, while the emission of CO2and NOx increases. Advanced DIT can reduce PM, and EG can decrease the average diameter of PM. Overall, the advanced DIT, suitable EG energy ratio and proper PIT are expected to achieve optimization on DEG dual-fuel engine in the aspect of performance and emissions.
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影响因子：
7.4
作者：
M. Bolla;Daniele Farrace;Y. Wright;K. Boulouchos
通讯作者：
M. Bolla;Daniele Farrace;Y. Wright;K. Boulouchos
影响因子：
7.5
作者：
Shiliang Wu;Hongwei Yang;Jun Hu;D. Shen;Huiyan Zhang;R. Xiao
通讯作者：
Shiliang Wu;Hongwei Yang;Jun Hu;D. Shen;Huiyan Zhang;R. Xiao
影响因子：
7.5
作者：
R. Vallinayagam;S. Vedharaj;Wenming Yang;C. Saravanan;P. Lee;K. Chua;S. Chou
通讯作者：
R. Vallinayagam;S. Vedharaj;Wenming Yang;C. Saravanan;P. Lee;K. Chua;S. Chou
影响因子：
10.4
作者：
Benajes, Jesus;Garcia, Antonio;Boronat, Vicente
通讯作者：
Boronat, Vicente
DOI：
10.14257/ijast.2013.61.02
发表时间：
2013-12
期刊：
International journal of advanced science and technology
影响因子：
--
作者：
Sateesh Yalavarthi;Anil Kumar Chintalapudi;S. Dev
通讯作者：
Sateesh Yalavarthi;Anil Kumar Chintalapudi;S. Dev