Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
POLLUTANTS PREDICTION IN PULSED DIFFUSE FLAME THROUGH NUMERICAL METHOD
Submission Author:
ANTONIO MARCOS FEITOSA SILVA , MA , Brazil
Co-Authors:
ANTONIO MARCOS FEITOSA SILVA, Marcos Antonio Feitosa da Silva, Fernando Lima de Oliveira, Mailson Sousa
Presenter: Mailson Sousa
doi://10.26678/ABCM.ENCIT2018.CIT18-0005
Abstract
Pulse Combustion is the burning process where temperature, pressure or other state variables change over time, presenting a higher mixing ratio between the fuel and the oxidant. This work proposes to numerically determine the utilized fractions in the combustion and soot emissions from this process. An experimental arrangement was made with a free burner, ie, without flame confinement. The fuel used is liquefied petroleum gas (LPG), where it is acoustically excited by a speaker. Through the experimental method, was determined the resonance frequencies in which the LPG gas was acoustically excited, at an inlet pressure of 0.5Kgf/cm² (49033.3Pa) and a mass flow rate of 0.22g/s. Under these operational conditions, the burner produced a flame with higher thermal efficiency and low soot emission. It can be affirmed that acoustic excitation reduces the emission of soot.
Keywords
pulsed flames, Soot, acoustic excitation, numerical predictions
