Safe design of a thermally unstable solid storage container: Natural convection effects on thermal ignition |
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| Authors: | H Zoghlami A Laurent J P Corriou J C Adrian R Papp |
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| Institution: | 1. LSGC-CNRS-ENSIC;2. 1 rue Grandville;3. BP 451;4. 54001 Nancy Cedex, France;5. Centre Technique Elf-Atochem, BP 32, 69310 Pierre-Bénite, France;6. Elf-Atochem, La Défense 10, Cedex 42, 92091 Paris La Défense, France |
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| Abstract: | 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. |
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