Flame temperature analysis in the oxycut process using acetylene gas: a numerical study

Gustavo L. S.  Silva; Júlio Cesar Costa Campos; Charles Luiz da Silva; Igor R. R.  Carlos; Antonio Marcos de Oliveira Siqueira; Rogério F.  Brito; Luciano José Minette

doi:10.18540/jcecvl6iss4pp0555-0563

Authors

Gustavo L. S. Silva Federal University of Viçosa, Department of Production and Mechanical Engineering https://orcid.org/0000-0002-3130-6307
Júlio Cesar Costa Campos Federal University of Viçosa, Department of Production and Mechanical Engineering, : Federal University of São João del-Rei, Graduate Program in Energy Engineering https://orcid.org/0000-0002-9488-8164
Charles Luiz da Silva Federal University of Viçosa, Department of Production and Mechanical Engineering https://orcid.org/0000-0003-1558-0485
Igor R. R. Carlos Federal University of São João del-Rei, Graduate Program in Energy Engineering https://orcid.org/0000-0002-6724-753X
Antonio Marcos de Oliveira Siqueira Federal University of Viçosa, Department of Chemistry https://orcid.org/0000-0001-9334-0394
Rogério F. Brito Federal University of Itajubá, Department of Mechanics https://orcid.org/0000-0002-6833-7801
Luciano José Minette Federal University of Viçosa, Department of Production and Mechanical Engineering,

DOI:

https://doi.org/10.18540/jcecvl6iss4pp0555-0563

Keywords:

Flame Model Oxyfuel Flame Temperature Partially Premixed Combustion

Abstract

To cut metals, the oxycut process uses a preheating flame, usually composed of oxygen and a combustible gas, in addition to a flame-independent jet of oxygen. In the present work, the partially premixed combustion model of a finite volume-based software was applied to analyze the flame temperature in a cutting tip of acetylene. At the torch inlet boundary, the flow rates of oxygen and acetylene were adjusted to sweep a wide range of fuel-oxygen ratio. The results pointed a peak surrounding the stoichiometric ratio, at 3106 °C for the literature and 2650.93 °C for the numerical model, contrasting a deviation of 14.65%. The maximum temperature occurs at 52.38% of oxygen volume for the literature and 50.03% for the model, a difference of 2.35 percentage points only. It is concluded that the results of the numerical approach attained the ends of the research.