Journal
FUEL
Volume 251, Issue -, Pages 368-382Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2019.04.007
Keywords
Chemical properties of PM; Composition of PM; Diesel engine; Diesel-biodiesel-ethanol (DBE) blend; Dual-fuel operation; Fumigation mode
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Funding
- Hong Kong Polytechnic University [RUAT]
- University Research Facility on Chemical and Environmental Analysis (URFCE) of The Hong Kong Polytechnic University
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This experimental study aims to investigate the effects of different fueling modes, including diesel, blended, fumigation and fumigation + blended (F + B) modes, on the chemical properties and composition of particulate matter (PM) of a diesel engine fueled with diesel-biodiesel-ethanol fuel (D80B5E15, volume %) under four operating conditions. It is found that the use of DBE has different effects on the chemical properties and composition of PM in the blended mode or the fumigation mode. The blended mode has higher organic carbon (OC)/total carbon (TC) ratio, but lower TC, OC, elemental carbon (EC), EC/TC ratio, water-soluble organic carbon, inorganic ions, metals and elements compared to those of the fumigation mode. For the PM composition, the diesel mode has the highest ratios of TC (85.8%), EC (47.6%) and inorganic ions (1.9%) and the lowest ratios of OC (38.2%), metals and elements (0.7%) and unknown species (11.6%). In contrast, the lowest ratios of TC (80.4%), EC (28.0%) and inorganic ions (1.6%) and the highest ratios of OC (52.4%) and unknown species (16.7%) are found for the blended mode. The highest metals and elements ratio (1.4%) is found in the fumigation mode. The F + B mode has the impacts between those of the fumigation and blended modes.
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