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IJEMS Vol.17(4) [August 2010] >


Title: Prediction of multi-component effects on ignition delay of oxygenated diesel fuel blends
Authors: Raslavičius, Laurencas
Bazaras, Žilvinas
Keywords: Multi-component effects
Ignition delay
Fuel droplet
Biofuel combustion
Quasi-stationary combustion
Combustion modelling
Issue Date: Aug-2010
Publisher: CSIR
Abstract: The quasi-stationary (Q-S), spherically symmetric combustion of the isolated multi-component droplets of oxygenated diesel fuel has been modelled using a variable mechanism, which has been developed and validated against several independent data sets. The composition of three-component motor fuel, consisting of fossil diesel (DF), rapeseed oil methyl ester (hereinafter RME; B100) and dehydrated ethyl alcohol (DEA), closing to DF by its ignition delay characteristic is established. Numerical simulation results show that in contrast to RME, the additive of dehydrated ethyl alcohol to DF/RME blend tends to increase a time of ignition delay. Striving for improving of the combustion process strained by bigger volumes of fossil diesel being replaced by oxygenated biofuels to meet ecological behavior and economical independence on imported fuels, as well as simultaneously omitting any regulatory adjustment, leads to combining of dehydrated ethyl alcohol and rapeseed oil methyl ester to compound the conventional diesel fuel.
Page(s): 243-250
ISSN: 0975-1017 (Online); 0971-4588 (Print)
Source:IJEMS Vol.17(4) [August 2010]

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