Open AccessNumerical simulation of premixed methane/air and synthesis gas/air flames for turbulence swirling jet
Author(s) -
A. S. Lobasov,
А. А. Дектерев,
А. В. Минаков
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1382/1/012060
Subject(s) - methane , combustion , turbulence , carbon monoxide , jet (fluid) , equivalence ratio , hydrogen , computational fluid dynamics , mechanics , syngas , chemistry , thermodynamics , materials science , environmental science , combustor , organic chemistry , physics , catalysis
This paper reports on the investigation of combustion features of turbulent swirling methane/air and synthesis gas/air flames via using modern CFD-approaches. For methane/air mixture the equivalence ratio Φ was 0.7 which is near to the lean blow off limit. Two regimes with 1:1 and 1:2 ratios of hydrogen and carbon monoxide in the fuel mixture have been considered for synthesis gas combustion. For validation of numerical models, the reliable experimental data has been used. It is found that LES approach demonstrates good agreement with the experimental data. Comparison between methane/air and synthesis gas/air flames demonstrates that in the latter case the size of recirculation zone and the flame temperature are decreasing. But, addition of carbon monoxide in synthesis gas/air mixture leads to flame temperature rise.