Open AccessChemical Kinetic Study of Nitrogen Oxides Formation Trends in Biodiesel Combustion
Author(s) -
Junfeng Yang,
Valeri Golovitchev,
Pau Redón Lurbe,
J. Javier López
Publication year - 2012
Publication title -
international journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.309
H-Index - 25
eISSN - 1687-8078
pISSN - 1687-806X
DOI - 10.1155/2012/898742
Subject(s) - chemkin , biodiesel , combustion , diesel fuel , chemical engineering , oxygen , nitrogen , process engineering , materials science , thermodynamics , chemistry , environmental science , computer science , organic chemistry , physics , engineering , catalysis
The use of biodiesel in conventional diesel engines results in increased NOx emissions; this presents a barrier to the widespread use of biodiesel. The origins of this phenomenon were investigated using the chemical kinetics simulation tool: CHEMKIN-2 and the CFD KIVA3V code, which was modified to account for the physical properties of biodiesel and to incorporate semidetailed mechanisms for its combustion and the formation of emissions. Parametric ϕ-T maps and 3D engine simulations were used to assess the impact of using oxygen-containing fuels on the rate of NO formation. It was found that using oxygen-containing fuels allows more O2 molecules to present in the engine cylinder during the combustion of biodiesel, and this may be the cause of the observed increase in NO emissions
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