Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
ANALYSIS OF THE COMBUSTION PROCESS IN A ADAPTED ENGINE WITH PRE-CAMERA USING AN EXPERIMENTAL MODEL AND THREE-DIMENSIONAL MODEL
Submission Author:
Miguel Barrientos , MG
Co-Authors:
Miguel Barrientos, Bruno Silva de Lima, Ramon Molina Valle, Carlos Castilla, Bryan Castro Caetano
Presenter: Miguel Barrientos
doi://10.26678/ABCM.ENCIT2018.CIT18-0541
Abstract
In internal combustion engines, in addition to reducing emissions, one of the major challenges is the reduction of specific fuel consumption. In order to achieve these objectives several methods are used, among which the pre-chamber ignition systems are highlighted. In this system is allowed the burning of homogeneous or stratified mixtures using an additional combustion chamber called pre-chamber. The combustion process starts in the pre-chamber using a spark plug and is directed through interconnecting holes to the main chamber where a stable combustion is obtained. This work presents a three-dimensional numerical study using Computational fluid dynamics (CFD) in an Otto cycle internal combustion engine adapted with pre-chamber. The three-dimensional simulation was performed using the software Converge CFD and the results are compared and validated with experimental results. In general, the comparison of the experimental results and those from the simulation allowed the characterization of the combustion process, in addition, it was also possible to observe and analyze the flame propagation.
Keywords
INTERNAL COMBUSTION ENGINES, Pre chamber, Computational Fluid Dynamics, numerical simulation.
