نویسندگان
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Exhaust Gas Recirculation (EGR) method has already shown its benefits on controlling NOx emissions in
internal combustion engines. By using EGR, power reduction and increase of other pollutants may be appeared
therefore use of this method needs an accurate regulation system limiting EGR cylinder-to-cylinder
maldistribution. On the other hand, emission law limitations make engine manufacturers to recycle back
blowby gases into the cylinders. As the same reasons, mentioned above, homogeneous distribution of blowby
gases shows better performance and more emission reduction. Geometrical parameters and injection location
of EGR/blowby have substantial effects on homogenous cylinder-to-cylinder distribution of EGR/blowby
gases. Therefore a numerical simulation of air flow with another species gas (for example CO2 injection inside
intake manifold as EGR/blowby simulation gas) is needed to evaluate the maldistribution quantitatively. Although
this method is practicable, it is time consuming because of various injection locations and long solution
duration. In this study a new method based on particle tracking is proposed which decreases the time
and effort needed to find appropriate injection locations. Furthermore, with the new method double injection
analysis is available.
کلیدواژهها [English]
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