Combustion and Emission Characteristics of an Ammonia-Biofuel Dual-Fuel Engine

被引：0
|
作者：
Cai K. [1 ]
Wang W. [1 ]
Zhao Z. [1 ]
Ma X. [1 ]
Qi Y. [1 ]
Li L. [2 ]
Wang Z. [1 ]
机构：
[1] School of Vehicle and Mobility, Tsinghua University, Beijing
[2] Department of Mechanical Engineering, Xi’an Jiaotong University City College, Xi’an
来源：
Qiche Gongcheng/Automotive Engineering | 2024年 / 46卷 / 04期
关键词：
ammonia; biodiesel; combustion; emission; ethanol;
D O I：
10.19562/j.chinasae.qcgc.2024.04.008
中图分类号：
学科分类号：
摘要：
The application of low-carbon/zero carbon fuels is an effective way to achieve high efficiency and clean combustion of internal combustion engines in response to the goal of‘carbon-peak and carbon- neutrality’. The study is based on a dual-fuel diesel engine bench. Diesel，blends of biodiesel and gasoline（BG70）and blends of biodiesel，gasoline and ethanol（BG50E20）are chosen as the direct injection fuels. Ammonia is injected into the intake port and the ammonia energy replacement（AER）is 0~28%. The engine speed is 1 200 r/min and the indicated mean effective pressure（IMEP）is 0.8 MPa. The CO，THC，NOx and particle number distributions are compared and analyzed. The results shows that the BG70 and BG50E20 show higher indicated efficiency than that of diesel under single-fuel mode. BG70 reduces CO emission by 30% compared to diesel. However，the THC and NOx emissions are the highest. The total particle number（TPN）emissions of BG70 and BG50E20 are lower than that of diesel. Compared to the combustion and emission characteristics of each fuel under single-fuel mode，adding ammonia leads to a 1%~2% decreasing of the indicated efficiency and doubles the CO emission. The NOx emissions of diesel and BG70 are reduced by nearly 50%，while the reduction of BG50E20 is about 30%. Also，ammonia shows significant effect on the TPN emissions of BG70 and BG50E20. The TPN emission of BG70 increases by 20 times when the AER grows from 0 to 28%. © 2024 SAE-China. All rights reserved.
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页码：626 / 681
页数：55
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