Laminar jet methane/air diffusion flame shapes and radiation of low air velocity coflow in microgravity

Fuel ◽  
2014 ◽  
Vol 130 ◽  
pp. 25-33 ◽  
Author(s):  
Dan Zhang ◽  
Jun Fang ◽  
Jin-fu Guan ◽  
Jing-wu Wang ◽  
Yi Zeng ◽  
...  
Keyword(s):  
Diffusion Flame ◽  
Air Velocity ◽  
Laminar Jet ◽  
Air Diffusion

Analysis of LPG diffusion flame in tube type burner

2019 ◽  
Vol 13 (3) ◽  
pp. 5278-5293
Author(s):  
Vipul Patel ◽  
Rupesh Shah
Keyword(s):  
Diffusion Flame ◽  
Emission Characteristic ◽  
Flame Stability ◽  
Liquefied Petroleum Gas ◽  
Air Velocity ◽  
Length Fraction ◽  
Low Emission ◽  
Tube Type ◽  
Stability Limits ◽  
Co Emission

The present research aims to analyse diffusion flame in a tube type burner with Liquefied petroleum gas (LPG) as a fuel. An experimental investigation is performed to study flame appearance, flame stability, Soot free length fraction (SFLF) and CO emission of LPG diffusion flame. Effects of varying air and fuel velocities are analysed to understand the physical process involved in combustion. SFLF is measured to estimate the reduction of soot. Stability limits of the diffusion flame are characterized by the blowoff velocity. Emission characteristic in terms of CO level is measured at different equivalence ratios. Experimental results show that the air and fuel velocity strongly influences the appearance of LPG diffusion flame. At a constant fuel velocity, blue zone increases and the luminous zone decreases with the increase in air velocity. It is observed that the SFLF increases with increasing air velocity at a constant fuel velocity. It is observed that the blowoff velocity of the diffusion flame increases as fuel velocity increases. Comparison of emission for flame with and without swirl indicates that swirl results in low emission of CO and higher flame stability. Swirler with 45° vanes achieved the lowest CO emission of 30 ppm at Φ = 1.3.

Effects of radiation model on the modeling of a laminar coflow methane/air diffusion flame

2004 ◽  
Vol 138 (1-2) ◽  
pp. 136-154 ◽  
Author(s):  
Fengshan Liu ◽  
Hongsheng Guo ◽  
Gregory J. Smallwood
Keyword(s):  
Diffusion Flame ◽  
Radiation Model ◽  
Effects Of Radiation ◽  
Air Diffusion

The prediction of laminar jet diffusion flame sizes: Part II. Experimental verification

1977 ◽  
Vol 29 ◽  
pp. 227-234 ◽  
Author(s):  
F.G. Roper ◽  
C. Smith ◽  
A.C. Cunningham
Keyword(s):  
Experimental Verification ◽  
Diffusion Flame ◽  
Laminar Jet

scholarly journals The effect of diluent gases on ion formation in hydrocarbon flames

1978 ◽  
Vol 56 (17) ◽  
pp. 2273-2277 ◽  
Author(s):  
Brenda L. Chawner ◽  
Arthur T. Blades
Keyword(s):  
Diffusion Flame ◽  
Formation Process ◽  
Hydrocarbon Flames ◽  
Ion Formation ◽  
Air Diffusion

It has been demonstrated that the addition of N2, CO, Ne, Ar, Kr, Xe, CO2, and CF4 to a H2-air diffusion flame containing He and traces of CH4 enhances the level of ion formation. This enhancement is proportional to the concentration of both CH4 and the diluent gas, consistent with the proposition that the diluent gas participates in the ion formation process.

Spatially resolved elemental analysis of a hydrogen–air diffusion flame by laser-induced plasma spectroscopy (LIPS)

2001 ◽  
Vol 70 (2) ◽  
pp. 143-152 ◽  
Author(s):  
Shinsuke Itoh ◽  
Masahisa Shinoda ◽  
Kuniyuki Kitagawa ◽  
Norio Arai ◽  
Yong-Ill Lee ◽  
...  
Keyword(s):  
Elemental Analysis ◽  
Diffusion Flame ◽  
Plasma Spectroscopy ◽  
Laser Induced Plasma ◽  
Spatially Resolved ◽  
Air Diffusion

Turbulence / Chemistry Interactions in a Ramp-Stabilized Supersonic Hydrogen-Air Diffusion Flame

2014 ◽  
Author(s):  
Jesse A. Fulton ◽  
Jack R. Edwards ◽  
Andrew D. Cutler ◽  
James C. McDaniel ◽  
Christopher P. Goyne
Keyword(s):  
Diffusion Flame ◽  
Air Diffusion

Large Eddy Simulation of a Methane–Air Diffusion Flame

2008 ◽  
Vol 81 (4) ◽  
pp. 497-521 ◽  
Author(s):  
D. J. Clayton ◽  
W. P. Jones
Keyword(s):  
Large Eddy Simulation ◽  
Diffusion Flame ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Air Diffusion
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