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Thermal ignition in an asymmetrically heated slab: Effects of reactant consumption

โœ Scribed by B.J. Tyler; D.R. Jones

Publisher
Elsevier Science
Year
1981
Tongue
English
Weight
630 KB
Volume
42
Category
Article
ISSN
0010-2180

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โœฆ Synopsis

Spatial and temporal variations of temperature and concentration in a layer of reactive material undergoing self-heating have been found by numerical integration of the governing equations. The method has been used to examine the effects of reactant consumption on ignition in an asymmetrically heated slab, with reaction by fast-order kinetics. A wide range of initial conditions have been considered and an arbitrary but practically useful criterion of ignition has been developed. Values are reported for (i) the critical ignition parameter 6, (ii) ignition times, (iii) the magnitude and position of the temperature maximum in subcritical conditions, and (iv) the degree of reactant depletion at ignition. The results are compared with analyses for zero-order reaction and their practical applications considered.

๐Ÿ“œ SIMILAR VOLUMES

Computer molecular dynamics simulation o
Computer molecular dynamics simulation of thermal ignition in a self-heating slab
โœ Dong-Pao Chou; Sidney Yip ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 240 KB

The basic theory of thermal ignition is largely based on the heat conduction equation with an Arrhenius exothermic reaction term [1][2][3]. If one assumes that reactant concentration is uniform, depletion can be ignored, and conduction is the only heat transport mechanism, then criticality behavior