Fractal aspects in O2 enriched combustion

In this study, we investigate the self-affinity of time series of thermal radiation from two fuels, natural gas (NG) and acetylene (AC), enriched with oxygen at 21%, 23% and 25% concentrations during the combustion process. We used the detrended fluctuation analysis method to evaluate the burning pr...

Full description

Saved in:
Bibliographic Details
Published inPhysica A Vol. 434; pp. 268 - 272
Main Authors Souza, J.W.G., Santos, A.A.B., Guarieiro, L.L.N., Moret, M.A.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 15.09.2015
Subjects
Combustion processes
Detrended fluctuation analysis
Energy efficiency
Combustion processes
Detrended fluctuation analysis
Energy efficiency
Online AccessGet full text

Cover

More Information
Summary:In this study, we investigate the self-affinity of time series of thermal radiation from two fuels, natural gas (NG) and acetylene (AC), enriched with oxygen at 21%, 23% and 25% concentrations during the combustion process. We used the detrended fluctuation analysis method to evaluate the burning process of these fuels. We found a well-defined self-affine aspect for these gases in this dynamic process. Using the proposed method, we were able to characterize the time series of NG as a sub-diffusive process and the time series of AC as a process with persistent self-affinity. •We studied combustion process stability.•We used Detrended Fluctuation Analysis (DFA).•We discuss the combustion efficiency.•We observe an auto-affinity in the time series.
ISSN:0378-4371
1873-2119
DOI:10.1016/j.physa.2015.04.021