Physical properties and structural characteristics of particulate matter emitted from a diesel engine fueled with biodiesel blends

In this study, scanning transmission electron microscope (STEM) and scanning electron microscope (SEM) are employed for analyzing the microstructure, nanostructure and electron diffraction pattern of PM. Raman spectrometer (RS) is also used for the analysis of structural characterization of PM. In addition, several experimental instruments like microbalance, measuring cup, viscometer, oxygen bomb calorimeter and Gas Chromatography-Mass Spectrometer (GC-MS) are employed to detect the properties of fuel, including density, heating value, viscosity, composition and cetane number. A conclusion can be drawn that both biodiesel blends and ethanol blend have a changing effect on the physical properties of PM compared with pure diesel, whereas biodiesel blends have a slightly weaker influence than ethanol blend. In this study, DGs10 has more impact than DC10 and DEu10 in changes of PM properties, particularly in the reduction of PM mass, making it a good candidate of renewable fuel for diesel engines.PMID:37356791 | DOI:10.1016/j.envpol.2023.122099
Source: Environmental Pollution - Category: Environmental Health Authors: Source Type: research