Burning velocity of methane-air flames

Fells, I.; Rutherford, A.

doi:10.1016/0010-2180(69)90043-1

Cited by 47 publications

(22 citation statements)

References 9 publications

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“…Hydrogen enrichment alone leads to higher burning velocities [11,[16][17][18][19][20][21], while dilution by nitrogen leads to decrease of the burning velocity [20,[22][23][24] and to decrease of NO x emissions [25,26]. Simultaneous effects of the enrichment by hydrogen and dilution by nitrogen have been investigated [27,28], yet NO x formation has not been studied in laminar premixed nonstretched flames of these mixtures.…”

Section: Introductionmentioning

confidence: 99%

The effects of composition on burning velocity and nitric oxide formation in laminar premixed flames of CH4 + H2 + O2 + N2

Coppens

Ruyck

Konnov

2007

Combustion and Flame

166

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Section: Introductionmentioning

confidence: 99%

The effects of composition on burning velocity and nitric oxide formation in laminar premixed flames of CH4 + H2 + O2 + N2

Coppens

Ruyck

Konnov

2007

Combustion and Flame

166

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“…Hence, in addition to its thermal effect, CO 2 produces chemical inhibition. Only few studies concern H 2 O addition to hydrocarbon flames, and divergences are observed in the chemical effect exerted on the burning velocity [23][24][25]. Müller-Dethlefs and Schlader [25] reported, however, that the measured decrease in the flame velocity with steam addition to propane and ethylene flames is smaller than it would be expected in the case with steam acting solely as an inert heat sink.…”

Section: Influence Of Co 2 and H 2 O On Flame Velocity And Maximum Tementioning

confidence: 79%

Comparative study of the influence of CO2 and H2O on the chemical structure of lean and rich methane-air flames at atmospheric pressure

Matynia

Delfau

Pillier

et al. 2009

Combust Explos Shock Waves

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A comparative study of the influence of CO 2 and H 2 O on both lean and rich CH 4 -air laminar flames is performed. Six premixed flames are stabilized on a flat flame burner at atmospheric pressure: lean (with the equivalence ratio maintained constant at φ = 0.7) and rich (with the equivalence ratio maintained constant at φ = 1.4) CH 4 -air, CH 4 -CO 2 -air, and CH 4 -H 2 O-air flames. These flames are studied experimentally and numerically. The [CO 2 ]/[CH 4 ] and [H 2 O]/[CH 4 ] ratios are kept equal to 0.4 for both flames series. Species mole fraction profiles are measured by gas chromatography and Fourier transform infrared spectroscopy analyses of gas samples withdrawn along the vertical axis by a quartz microprobe. Flames structures are computed by using the ChemkinII/Premix code. Four detailed combustion mechanisms are used to calculate the laminar flame velocities and species mole fraction profiles: GRI-Mech 3.0, Dagaut, UCSD, and GDFkin 3.0.

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“…In real situations local gas accumulations could occur in bounded spaces where the gas could exceed 5% concentrations. The literature www.intechopen.com (Fells et al, 1969, ioMosaic, 2007& Hissong, 2007 does not devote special attention to this phenomenon because it is would require overly complex stochastic machinations. …”

Section: Resultsmentioning

confidence: 99%

“…A concentration of gas smaller than 5% will not ignite and if the concentration is over 15% the air becomes saturated. The explosion of natural gas is not possible in open spaces because the low velocity of flame spread, around 0.4 m/s, is not enough to produce a pressure wave (Fells et al, 1969). The burnout of gas/air mixture in open air could result only in a flash fire.…”

Section: Introductionmentioning

confidence: 99%