Effect of diesel blended with di-n-butyl ether/1-octanol on combustion and emission in a heavy-duty diesel engine

Jinglan Wang; Lifang Sun; Pengpeng Luan; Yangyi Wu; Zhanjun Cheng; Zhao Zhang; Xiangen Kong; Haifeng Liu; Guanyi Chen

doi:10.1016/j.envpol.2022.119976

Effect of diesel blended with di-n-butyl ether/1-octanol on combustion and emission in a heavy-duty diesel engine

Environ Pollut. 2022 Oct 15:311:119976. doi: 10.1016/j.envpol.2022.119976. Epub 2022 Aug 17.

Authors

Jinglan Wang¹, Lifang Sun¹, Pengpeng Luan¹, Yangyi Wu¹, Zhanjun Cheng², Zhao Zhang¹, Xiangen Kong¹, Haifeng Liu¹, Guanyi Chen³

Affiliations

¹ School of Environmental Science and Engineering, State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, PR China.
² School of Environmental Science and Engineering, State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, PR China; Tianjin Key Lab of Biomass/waste Utilization, Key Laboratory of Efficient Utilization of Low and Medium Energy, Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy Utilization, Tianjin University, Tianjin, 300072, PR China. Electronic address: zjcheng@tju.edu.cn.
³ School of Environmental Science and Engineering, State Key Laboratory of Engines, Tianjin University, Tianjin, 300072, PR China; Tianjin Key Lab of Biomass/waste Utilization, Key Laboratory of Efficient Utilization of Low and Medium Energy, Tianjin Engineering Research Center for Organic Wastes Safe Disposal and Energy Utilization, Tianjin University, Tianjin, 300072, PR China; School of Mechanical Engineering, Tianjin University of Commerce, Tianjin, 300134, PR China.

PMID: 35985434
DOI: 10.1016/j.envpol.2022.119976

Abstract

Two kinds of C₈ isomers, di-n-butyl ether (DNBE) and 1-octanol, as potential oxygen-containing alternative fuels, show important value in the trade-off between efficiency and emission. In the present work, the effects of DNBE/1-octanol with different proportions (0, 10%, and 20%) blended into diesel on the combustion characteristics, fuel economy, and emission characteristics in a six-cylinder heavy-duty diesel engine were studied at low, medium, and high loads. 1-Octanol with a 20% blending ratio showed different combustion characteristics in the cylinder compared with the other fuels. The economic analysis showed that the brake specific fuel consumption of DNBE-diesel blend fuels was higher than that of 1-octanol-diesel blend fuels, while brake thermal efficiency was the opposite tendency. The emissions of nitrogen oxides (NOx), hydrocarbons (HC), and carbon monoxide (CO) were affected by the types of blend fuels, blending ratios, and loads. In comparison with 1-octanol-diesel blend fuels, the addition of DNBE in diesel promoted the emission of nitrogen oxides, but inhibited the emissions of soot, HC, and CO. DNBE- and 1-octanol-diesel blend fuels increased the weighted brake specific fuel consumption but decreased the weighted brake thermal efficiency compared with diesel in the World Harmonized Stationary Cycle test cycle of Euro VI regulation. The weighted NOx, HC, soot, and CO emissions of blend fuels depended on the types of blend fuels and blend ratios. The weighted NOx, HC, and soot emissions were reduced by blending 1-octanol into diesel, while the weighted CO emission was increased. The weighted CO and soot emissions of diesel blended with DNBE were reduced than that of diesel.

Keywords: Butyl ether; Combustion; Diesel engine; Emission; Octanol.

MeSH terms

1-Octanol
Biofuels* / analysis
Carbon Monoxide / analysis
Ethers
Gasoline / analysis
Hydrocarbons / analysis
Nitrogen Oxides / analysis
Octanols
Soot
Vehicle Emissions* / analysis

Substances

Biofuels
Ethers
Gasoline
Hydrocarbons
Nitrogen Oxides
Octanols
Soot
Vehicle Emissions
Carbon Monoxide
1-Octanol