The attachment of the flame sheet to the carbon surface in a carbon combustion model: On the surface constraining conditions

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Combustion and Flame

DOI:https://doi.org/10.1016/0010-2180(95)00150-6· OSTI ID:215667

Matsui, K ^[1]; Tsuji, H ^[2]

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1. Daicel Chemical Industries, Ltd., Hyogo (Japan). Harima Plant
2. Tokyo Denki Univ. (Japan). Dept. of Mechanical Engineering

The attachment of the flame sheet to the carbon surface is studied in a carbon combustion model where the heterogeneous reactions 2C{sub (s)} + O{sub 2} {yields} 2CO and C{sub (s)} + CO{sub 2} {yields} 2CO and the homogeneous reaction 2CO + O{sub 2} {yields} 2CO{sub 2} occur in a stagnation flow field. When the flame sheet attaches to the carbon surface, the governing equations become homogeneous. The surface constraining conditions for each species must be built, taking into account the consumption or production of the species not only by the heterogeneous reactions but also by the homogeneous reaction occurring at the carbon surface. The rebuilt surface constraining conditions differ from the conditions to be imposed when the flame sheet forms away from the carbon surface. The field becomes identical with that of a model where only the heterogeneous reaction C{sub (s)} + O{sub 2} {yields} CO{sub 2} takes place.

• OSTI ID: 215667
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 1-2 Vol. 105; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ADHESION
CARBON DIOXIDE
CARBON MONOXIDE
COAL
COMBUSTION KINETICS
FLAME PROPAGATION
FLAMES
MATHEMATICAL MODELS
SURFACE PROPERTIES