Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21139
Title: Regulated and unregulated emissions from a diesel engine fueled with biodiesel and biodiesel blended with methanol
Authors: Cheung, CS 
Zhu, L
Huang, Z
Keywords: Biodiesel
Diesel engine
Methanol
Regulated emissions
Unregulated emissions
Issue Date: 2009
Publisher: Pergamon Press
Source: Atmospheric environment, 2009, v. 43, no. 32, p. 4865-4872 How to cite?
Journal: Atmospheric environment 
Abstract: Experiments were carried out on a diesel engine operating on Euro V diesel fuel, pure biodiesel and biodiesel blended with methanol. The blended fuels contain 5%, 10% and 15% by volume of methanol. Experiments were conducted under five engine loads at a steady speed of 1800 rev min-1 to assess the performance and the emissions of the engine associated with the application of the different fuels. The results indicate an increase of brake specific fuel consumption and brake thermal efficiency when the diesel engine was operated with biodiesel and the blended fuels, compared with the diesel fuel. The blended fuels could lead to higher CO and HC emissions than biodiesel, higher CO emission but lower HC emission than the diesel fuel. There are simultaneous reductions of NOx and PM to a level below those of the diesel fuel. Regarding the unregulated emissions, compared with the diesel fuel, the blended fuels generate higher formaldehyde, acetaldehyde and unburned methanol emissions, lower 1,3-butadiene and benzene emissions, while the toluene and xylene emissions not significantly different.
URI: http://hdl.handle.net/10397/21139
ISSN: 1352-2310
EISSN: 1873-2844
DOI: 10.1016/j.atmosenv.2009.07.021
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