Numerical Analysis of NOx Formation Trends in Biodiesel Combustion using Dynamic ϕ-T Parametric Maps
Paper i proceeding, 2011

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 CFD KIVA3V code, which was modified to account for the physical properties of biodiesel and to incorporate semi-detailed 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.

Författare

Junfeng Yang

Chalmers, Tillämpad mekanik, Förbränning

Valeri Golovitchev

Chalmers, Tillämpad mekanik, Förbränning

Paul Redon

Universitat Politecnica de Valencia (UPV)

J. Javier López

Universitat Politecnica de Valencia (UPV)

2011 JSAE/SAE International Powertrains, Fuels & Lubricants Meeting, Kyoto (Japan), Aug 29-Sep 2

16-

Drivkrafter

Hållbar utveckling

Ämneskategorier

Annan teknik

Energiteknik

Kemiteknik

Strömningsmekanik och akustik

Styrkeområden

Energi

DOI

10.4271/2011-01-1929