Effect of PODE Addition and Injection Parameters on Combustion and Emission Characteristics in a Diesel Engine

被引：0
|
作者：
Chen H. [1 ,2 ]
Huang H. [1 ]
Huang R. [1 ]
Liu Q. [3 ]
Teng W. [1 ]
机构：
[1] School of Mechanical Engineering, Guangxi University, Nanning
[2] School of Automotive Engineering, Liuzhou Vocational & Technical College, Liuzhou
[3] Engineering Research Institute, Guangxi Yuchai Machinery Company Limited, Yulin
来源：
Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines) | 2019年 / 37卷 / 01期
关键词：
Combustion characteristics; Diesel engine; Diesel/polyoxymethylene dimethyl ethers; Emission;
D O I：
10.16236/j.cnki.nrjxb.201901002
中图分类号：
学科分类号：
摘要：
Experimental study was performed on combustion and emission characteristics of different injection parameters in a four-cylinder turbocharged direct-injection diesel engine fueled with polyoxymethylene dimethyl ethers(PODE)of different blending ratios. The test fuels include pure diesel(PD0), two blends of PODE and diesel fuel denoted as PD20(20% PODE and 80% diesel in volume)and PD30(30% PODE and 70% diesel in volume) respectively. Results show that, as the injection timing is retarded, the peak in-cylinder pressure, the BTE, CO and HC emissions and PM emissions decrease for the three tested fuels, while the peak heat release, the BSFC and NOx emissions increase. PN emissions are observed to first reduce and then increase. With the increase of injection pressure, the peak fire pressure, the peak heat release, CO and HC emissions increase, while NOx emissions, PM and PN emissions reduce. Retarding of injection timing and increasing of injection pressure are both beneficial for smoke reduction of PD0 fuel, but less impact on PD20 and PD30 fuels. With the increase of PODE ratios, the BTE can be improved with a penalization of the BSFC, CO, HC and smoke decreases, PM and PN reduce dramatically, but NOx slightly increases. © 2019, Editorial Office of the Transaction of CSICE. All right reserved.
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页码：9 / 16
页数：7
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