Eventos Anais de eventos
ENCIT 2022
19th Brazilian Congress of Thermal Sciences and Engineering
EXPERIMENTAL STUDY OF THE GAS ATMOSPHERE EFFECTS ON A STOICHIOMETRIC PREMIXED FLAME
Submission Author:
Rafael Trintinaglia Perin , RS
Co-Authors:
Rafael Trintinaglia Perin, Lucas Güenter Fernandes, Andrés Armando Mendiburu Zevallos, Fernando Pereira, PAULO PAGOT
Presenter: Lucas Güenter Fernandes
doi://10.26678/ABCM.ENCIT2022.CIT22-0728
Abstract
This study investigates the gas atmosphere effects on the behavior and stability limits of stoichiometric premixed flames of methane and air. A stoichiometric premixed flame has a complete mixture that allows complete combustion, however, the influence of the gas atmosphere in which the flame burns are not an easy answer to find in the literature, therefore, this study tries to explain how different atmosphere gases affect a stoichiometric premixed flame. The experimental measurements were performed using a closed chamber with windows, allowing the visualization of the experiment. The gases were adjusted using mass flow controllers, enabling precise control of the gases and the evaluation of the stability limits. The results show that although the premixed flame have a stoichiometric proportion, the gas atmosphere around it have a significant influence on the flame stability, affecting it through edge mixing effects, secondary air relevance to the premixed flame and by participation of the gas atmosphere on the combustion.
Keywords
Premixed flame, gas atmosphere, flame stability
