scholarly journals Temperature and Chemical Reaction Distribution of a Laminar Diffusion Flame Measured by X-ray Compton Scattering

Crystals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 787
Author(s):  
Hiroshi Sakurai ◽  
Naruki Tsuji ◽  
Yoshio Zama ◽  
Kosuke Suzuki ◽  
Kazushi Hoshi ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Diffusion Flame ◽  
Parameter Analysis ◽  
State Distribution ◽  
Nondestructive Measurement ◽  
Laminar Diffusion Flame ◽  
X Ray ◽  
S Parameter ◽  
Laminar Diffusion ◽  
Chemical States

A laminar diffusion flame was measured by X-ray Compton scattering. The temperature distribution was measured from an analysis of Compton scattered X-ray intensity. The chemical state distribution was obtained from a Compton scattered X-ray spectrum analysis (s-parameter analysis). The analysis of intensity and s-parameter of Compton scattered X-ray spectra indicate that the propane molecule emitted from the cylindrical Bunsen burner collapse immediately coincides with soot generation. Furthermore, the temperature increases up to 1500 K and a large amount of CO2 was generated at the combustion field. Our results show that the Compton scattered X-ray analysis can be a novel nondestructive measurement for temperature and chemical states in a combustion reaction.

Relation between the inhibition of the laminar diffusion flame of polymers, soot formation, and radiation

1983 ◽  
Vol 19 (5) ◽  
pp. 608-610
Author(s):  
L. E. Makharinskii ◽  
N. A. Khalturinskii ◽  
Al. Al. Berlin ◽  
T. A. Rudakova
Keyword(s):  
Diffusion Flame ◽  
Soot Formation ◽  
Laminar Diffusion Flame ◽  
Laminar Diffusion

Computational and experimental study of no in an axisymmetric laminar diffusion flame

1996 ◽  
Vol 26 (2) ◽  
pp. 2161-2170 ◽  
Author(s):  
M.D. Smooke ◽  
A. Ern ◽  
M.A. Tanoff ◽  
B.A. Valdati ◽  
R.K. Mohammed ◽  
...  
Keyword(s):  
Experimental Study ◽  
Diffusion Flame ◽  
Laminar Diffusion Flame ◽  
Laminar Diffusion

scholarly journals Dimers of polycyclic aromatic hydrocarbons: the missing pieces in the soot formation process

2019 ◽  
Vol 21 (16) ◽  
pp. 8282-8294 ◽  
Author(s):  
X. Mercier ◽  
O. Carrivain ◽  
C. Irimiea ◽  
A. Faccinetto ◽  
E. Therssen
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Experimental Evidence ◽  
Aromatic Hydrocarbons ◽  
Diffusion Flame ◽  
Formation Process ◽  
Soot Formation ◽  
Laminar Diffusion Flame ◽  
Laminar Diffusion ◽  
Polycyclic Aromatic

Experimental evidence supporting the existence of PAH dimers in the proximity of the soot nucleation region of a methane laminar diffusion flame.

Effect of Damkohler Number and Non-Unity Lewis Number on a Laminar Diffusion Flame

2003 ◽  
Author(s):  
Bassem H. Ramadan
Keyword(s):  
Diffusion Flame ◽  
Rectangular Channel ◽  
Flame Structure ◽  
Lewis Number ◽  
Damkohler Number ◽  
Laminar Diffusion Flame ◽  
Damköhler Number ◽  
Laminar Diffusion ◽  
Adi Schemes ◽  
Steady Laminar

The effect of the Damkohler number (Da) and non-unity Lewis number on a two-dimensional, steady, laminar diffusion flame anchored by a dividing plate in a rectangular channel was considered. The governing equations were solved numerically, using the SIMPLE and ADI schemes. The results for non-unity Lewis number were compared with those for a unity Lewis number, and Da a was also varied in order to determine their effect on the flame structure. The results show that an increase in the Da causes the flame to exist closer to the trailing edge of the divider and to increase the reactivity. A non-unity Lewis number creates a non-symmetrical flame by forcing the flame to exist on the fuel side.

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