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Safe design of a thermally unstable solid storage container: Natural convection effects on thermal ignition
Author(s) -
Zoghlami H.,
Laurent A.,
Corriou J. P.,
Adrian J. C.,
Papp R.
Publication year - 1997
Publication title -
process safety progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.378
H-Index - 40
eISSN - 1547-5913
pISSN - 1066-8527
DOI - 10.1002/prs.680160406
Subject(s) - natural convection , ignition system , mechanics , thermal , biot number , rayleigh number , materials science , convection , thermodynamics , container (type theory) , physics , composite material
A numerical simulation of the convection process in a thermally unstable solid storage container has been carried out. The obtained results show that natural convection shifts the thermal ignition to higher induction times. Beyond a critical Rayleigh number, natural convection can prevent the system against thermal ignition. Temperature and velocity fields are calculated. The influence of the dependence of Biot numbers on temperature and the radius/height ratios on the induction times for thermal ignition has been also examined.