Models for Metal Particle Combustion with Extended Flame Zones

Chung King Law

doi:10.1080/00102207608946711

Models for Metal Particle Combustion with Extended Flame Zones

Chung King Law

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A class of models is proposed to describe the vapor-phase combustion of metal particles. Optional features of the models include surface condensation of the oxide vapor and the existence of an extended flame zone, formed by condensing part or all of the outwardly-diffusing oxide vapor. Two types of extended flames, an isothermal flame and a non-isothermal flame with the inner edge hotter than the outer edge, are found to exist. It is shown that by including the additional gas-phase condensation process, the mass burning rate increases slightly whereas the outer edge of the flame can attain substantial size. Sample solutions are obtained for magnesium reacting with oxygen. Fair agreements exist between theoretical predictions and experimental results.

Original language	English (US)
Pages (from-to)	113-124
Number of pages	12
Journal	Combustion science and technology
Volume	12
Issue number	4-6
DOIs	https://doi.org/10.1080/00102207608946711
State	Published - Apr 1 1976
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

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10.1080/00102207608946711

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title = "Models for Metal Particle Combustion with Extended Flame Zones",

abstract = "A class of models is proposed to describe the vapor-phase combustion of metal particles. Optional features of the models include surface condensation of the oxide vapor and the existence of an extended flame zone, formed by condensing part or all of the outwardly-diffusing oxide vapor. Two types of extended flames, an isothermal flame and a non-isothermal flame with the inner edge hotter than the outer edge, are found to exist. It is shown that by including the additional gas-phase condensation process, the mass burning rate increases slightly whereas the outer edge of the flame can attain substantial size. Sample solutions are obtained for magnesium reacting with oxygen. Fair agreements exist between theoretical predictions and experimental results.",

author = "Law, {Chung King}",

note = "Funding Information: It is a pleasure to acknowledge the very helpful advice the author received from his thesis advisor, Professor F. A. Williams, during the course of this research. r This work has been sponsored by the Air Force Office of )Scientific Research, Office of Aerospace Research, U.S. Air Force under Grant AFOSR-72·2333. The author is now associated with the Department of Aerospace and Mechanical Sciences, Princeton University.",

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AU - Law, Chung King

N1 - Funding Information: It is a pleasure to acknowledge the very helpful advice the author received from his thesis advisor, Professor F. A. Williams, during the course of this research. r This work has been sponsored by the Air Force Office of )Scientific Research, Office of Aerospace Research, U.S. Air Force under Grant AFOSR-72·2333. The author is now associated with the Department of Aerospace and Mechanical Sciences, Princeton University.

PY - 1976/4/1

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N2 - A class of models is proposed to describe the vapor-phase combustion of metal particles. Optional features of the models include surface condensation of the oxide vapor and the existence of an extended flame zone, formed by condensing part or all of the outwardly-diffusing oxide vapor. Two types of extended flames, an isothermal flame and a non-isothermal flame with the inner edge hotter than the outer edge, are found to exist. It is shown that by including the additional gas-phase condensation process, the mass burning rate increases slightly whereas the outer edge of the flame can attain substantial size. Sample solutions are obtained for magnesium reacting with oxygen. Fair agreements exist between theoretical predictions and experimental results.

AB - A class of models is proposed to describe the vapor-phase combustion of metal particles. Optional features of the models include surface condensation of the oxide vapor and the existence of an extended flame zone, formed by condensing part or all of the outwardly-diffusing oxide vapor. Two types of extended flames, an isothermal flame and a non-isothermal flame with the inner edge hotter than the outer edge, are found to exist. It is shown that by including the additional gas-phase condensation process, the mass burning rate increases slightly whereas the outer edge of the flame can attain substantial size. Sample solutions are obtained for magnesium reacting with oxygen. Fair agreements exist between theoretical predictions and experimental results.

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ER -

Models for Metal Particle Combustion with Extended Flame Zones

Abstract

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