Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENGINEERING   JULY 2012 , Volume 25 , Number 3 (TRANSACTIONS A: BASICS); Page(s) 211 To 219.
 
Paper: 

MODELING OF COMBUSTION AND CARBON OXIDES FORMATION IN DIRECT INJECTION DIESEL ENGINE

 
 
Author(s):  BOUSSOUARA K.*, MERABET A., KADJA M.
 
* MECHANICAL ENGINEERING DEPARTMENT, UNIVERSITY OF CONSTANTINE, 25000, ALGERIA
 
Abstract: 

When looking at the effects of diesel engine exhaust on the environment, it is important to first look at the composition of the exhaust gases. Over 99.5% of the exhaust gases are a combination of nitrogen, oxygen, carbon dioxide, and water. With the exception of carbon dioxide, which contributes about 5% of the total volume, the diesel engine exhaust consists of elements which are part of the natural atmosphere and are not harmful to the environment. Carbon dioxide emissions are directly related to the efficiency of the combustion unit. The higher efficiency obtained with lower amount of CO2 emissions. In this study we are interested in the effects of exhaust gas recirculation (EGR) on combustion and emissions direct injection diesel engine. In particular, the effects of carbon dioxide (CO2), water (H2O), carbon monoxide (CO), some different quantities of EGR, analysed and quantified numerically. Other parameters tha affect the rate of oxides of carbon in the bowl shape, the Mexican hat and spherical geometry are analyzed in this work. Therefore, A modified version of the computational fluid dynamics (CFD) Code KIVA-3V has been used for modelling combustion process and engine emission, in particular carbon oxides emission and its control. Simulation was carried out by using a two-stroke single-cylinder direct injection diesel engine.

 
Keyword(s): SIMULATION, EGR, CARBON OXIDES, EMISSIONS, KIVA 3V
 
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