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Chemical Kinetic Study of Nitrogen Oxides Formation Trends in Biodiesel Combustion

Junfeng Yang (Institutionen för tillämpad mekanik, Förbränning) ; Valeri Golovitchev (Institutionen för tillämpad mekanik, Förbränning) ; P. Redón Lurbe ; J.J. López Sanchez
International Journal of Chemical Engineering (1687-806X). (2012)
[Artikel, refereegranskad vetenskaplig]

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.



Denna post skapades 2012-06-05.
CPL Pubid: 158572

 

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Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Förbränning

Ämnesområden

Teknisk mekanik

Chalmers infrastruktur