Weak burning and gas-phase ignition about a carbon particle in an oxidizing atmosphere

Moshe Matalon

doi:10.1080/00102208108547520

Weak burning and gas-phase ignition about a carbon particle in an oxidizing atmosphere

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Abstract

The departure from frozen flow behavior about a carbon particle in an oxidizing atmosphere, has been discussed in order to obtain the burning rate M over a wide range of the Damkohler number D_g(rep-resenting either the particle size or the ambient pressure). The frozen limit (Dg→0) leads to values of M ranging up to M₂, the maximum burning rate corresponding to diffusion controlled heterogeneous reactions. By contrast, for finite values of D_gwe find that the burning rate is limited by M_1g<M₂. The maximum Damkohler number D_g° given by an explicit formula, corresponds to gas phase ignition.

Original language	English (US)
Pages (from-to)	43-48
Number of pages	6
Journal	Combustion science and technology
Volume	25
Issue number	1-2
DOIs	https://doi.org/10.1080/00102208108547520
State	Published - Jan 1 1981
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
General Physics and Astronomy

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10.1080/00102208108547520

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abstract = "The departure from frozen flow behavior about a carbon particle in an oxidizing atmosphere, has been discussed in order to obtain the burning rate M over a wide range of the Damkohler number Dg(rep-resenting either the particle size or the ambient pressure). The frozen limit (Dg→0) leads to values of M ranging up to M2, the maximum burning rate corresponding to diffusion controlled heterogeneous reactions. By contrast, for finite values of Dgwe find that the burning rate is limited by M1g2. The maximum Damkohler number Dg° given by an explicit formula, corresponds to gas phase ignition.",

author = "Moshe Matalon",

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N2 - The departure from frozen flow behavior about a carbon particle in an oxidizing atmosphere, has been discussed in order to obtain the burning rate M over a wide range of the Damkohler number Dg(rep-resenting either the particle size or the ambient pressure). The frozen limit (Dg→0) leads to values of M ranging up to M2, the maximum burning rate corresponding to diffusion controlled heterogeneous reactions. By contrast, for finite values of Dgwe find that the burning rate is limited by M1g2. The maximum Damkohler number Dg° given by an explicit formula, corresponds to gas phase ignition.

AB - The departure from frozen flow behavior about a carbon particle in an oxidizing atmosphere, has been discussed in order to obtain the burning rate M over a wide range of the Damkohler number Dg(rep-resenting either the particle size or the ambient pressure). The frozen limit (Dg→0) leads to values of M ranging up to M2, the maximum burning rate corresponding to diffusion controlled heterogeneous reactions. By contrast, for finite values of Dgwe find that the burning rate is limited by M1g2. The maximum Damkohler number Dg° given by an explicit formula, corresponds to gas phase ignition.

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Weak burning and gas-phase ignition about a carbon particle in an oxidizing atmosphere

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