Emission characteristics using methyl soyate–ethanol–diesel fuel blends on a diesel engine |
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| Affiliation: | 1. State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China;2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 100084, China;1. Mechanical Engineering, University of Birmingham, B15 2TT Birmingham, UK;2. Johnson Matthey Technology Centre, Blount’s Court, Sonning Common, Reading RG4 9NH, UK;1. State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China;2. School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | A blend of 20% (v/v) ethanol/methyl soyate was prepared and added to diesel fuel as an oxygenated additive at volume percent levels of 15 and 20% (denoted as BE15 and BE20). We also prepared a blend containing 20% methyl soyate in diesel fuel (denoted as B20). The fuel blends that did not have any other additive were stable for up to 3 months. Engine performance and emission characteristics of the three different fuels in a diesel engine were investigated and compared with the base diesel fuel. Observations showed that particulate matter (PM) emission decreased with increasing oxygenate content in the fuels but nitrogen oxides (NOx) emissions increased. The diesel engine fueled by BE20 emitted significantly less PM and a lower Bosch smoke number but the highest NOx among the fuel blends tested. All the oxygenate fuels produced moderately lower CO emissions relative to diesel fuel. The B20 blend emitted less total hydrocarbon (THC) emissions compared with base diesel fuel. This was opposite to the fuel blends containing ethanol (BE15, BE20), which produced much higher THC emission. |
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