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4. Probabilistic approach to gas explosions – explosion hazard
4.1 Objectives and benefits of the probabilistic approach
As we have already seen, the potential violence of a gas explosion in an industrial plant depends on numerous parameters. Some are fixed by the configuration studied (geometry, gas), but others can be much more random: position and direction of the leak, weather conditions, location of the ignition source, etc. In addition, the size of the accidental leak must itself be considered with a certain probability of occurrence. What's more, the size of the accidental leak itself has to be considered with a certain probability of occurrence.
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Probabilistic approach to gas explosions – explosion hazard
Assessment of explosion actions on structures
Bibliography
Digital media
ARIA – Technological accident database. French Ministry of Ecology, Energy, Sustainable Development and Town and Country Planning (MEEDDAT) http://www.aria.developpement-durable.gouv/
Software tools
AUTOREAGAS, CFX, FLUENT. ANSYS INC. Southpointe 275 Technology Drive Canonsburg, PA 15317, USA http://www.ansys.com
FLACS – FLame Acceleration Simulator. GEXCON AS Fantoftvegen 38 N-5892 Bergen, Norway http://www.gexcon.com
OpenFOAM – The Open...
Standards and norms
AFNOR EUROCODE 1: Actions on structures – Part 1–7: General actions – Accidental actions, EN 1991-1-7 (July 2006).
Regulations
Arrêté du 29 septembre 2005 relatif à " l'évaluation et à la prise en compte de la probabilité d'occurrence, de la cinétique, de l'intensité des effets et de la gravité des conséquences des accidents potentiels dans les études de dangers des installations classées soumise à autorisation ". JO n° 234 du 7 octobre 2005 – NOR DEVP0540371A.
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