Thermal runaway in a system with a constant power source

Journal Article · Sun Mar 01 04:00:00 EST 1992 · Combustion and Flame; (United States)

DOI:https://doi.org/10.1016/0010-2180(92)90045-Q· OSTI ID:5630265

Feng, H T; Hildyard, C J; Scott, S K ^[1]

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1. School of Chemistry, Univ. of Leeds, Leeds LS2 9JT (GB)

In this paper a model appropriate to chemical self-heating for an exothermic gas-phase reaction in a spherical reaction zone with a constant power source provided at the center is analyzed. Criticality is shown to be a feature, with ignition and extinction accompanying changes in the power. As the size of the power source at the center of the reaction zone is reduced, however, there is a transition process to a continuous variation of the steady-state temperature with the power. The relevance of this model to technically important applications is discussed.

• OSTI ID: 5630265
• Journal Information: Combustion and Flame; (United States), Journal Name: Combustion and Flame; (United States) Vol. 88:3; ISSN CBFMA; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL REACTIONS
CONFIGURATION
FLUIDS
GASES
IGNITION
MATHEMATICAL MODELS
POWER
SIZE
SPHERICAL CONFIGURATION
STEADY-STATE CONDITIONS
TEMPERATURE DISTRIBUTION