Numerical studies for combustion processes and emissions in the DI diesel engines using EGR

Title & Authors
Numerical studies for combustion processes and emissions in the DI diesel engines using EGR
Kwon, Y.D.; Lee, J. C.; Kim, Y. M.; Kim, S. W.;

Abstract
The effects of exhaust gas recirculation on diesel engine combustion and soot/NOx emissions are numerically studied. The primary and secondary atomization is modelled using the wave instability breakup model. Autoignition of a diesel spray is modelled using the Shell ignition model. Soot formation is kinetically controlled and soot oxidation is represented by a model which account for surface chemistry. The NOx formation is based on the extended Zeldovich NOx model. Effects of injection timing and concentration of $\small{O_{2}}$ and CO$\small{_{2}}$ on the pollutant formation and the combustion process are discussed in detail.
Keywords
Spray;Autoignition;Droplet Breakup;Atomization;Pollutant Formation;EGR;
Language
Korean
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