Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/17244
Title: Effect of waste cooking oil biodiesel on the properties of particulate from a DI diesel engine
Authors: Man, XJ
Cheung, CS 
Ning, Z
Yung, KF 
Issue Date: 2015
Publisher: Taylor & Francis
Source: Aerosol science and technology, 2015, v. 49, no. 4, p. 199-209 How to cite?
Journal: Aerosol science and technology 
Abstract: The present work focuses on the effect of waste cooking oil biodiesel on the particulate mass, number concentration, nanostructure, and oxidative reactivity under different engine speeds and engine loads. Particulate samples were collected from the diluted exhaust of a medium-duty direct injection diesel engine and were used to analyze the physico-chemical properties via the transmission electron microscope (TEM) and the thermogravimetric analyzer/differential scanning calorimeter (TGA/DSC). The TEM images reveal that smaller primary particles are formed at higher engine speed, lower engine load, or using biodiesel. Quantitative analysis of the nanostructures indicates more soot with more disordered configuration, in which shorter and more curved graphene layer is prevailing at lower engine load or when using biodiesel. Furthermore, the TGA results infer that the soot oxidative reactivity is closely related to the nanostructure properties and the effect of engine load is more pronounced than the effect of engine speed. Also biodiesel soot has faster oxidative reactivity than diesel soot. Moreover, results obtained for B30 (30% biodiesel and 70% diesel fuel) lie in between those for biodiesel and diesel fuel.
URI: http://hdl.handle.net/10397/17244
ISSN: 0278-6826
EISSN: 1521-7388
DOI: 10.1080/02786826.2015.1016214
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