Boiling liquid expanding vapour explosion

BLEVE, BOILING LIQUID EXPANDING VAPOUR EXPLOSION Instantaneous release and ignition of flammable vapour upon rupture of a vessel eontaining flammable liquid above its atmospherie boiling point. 

Explosion a confined vapour cloud explosion (CVCE) can result from ignition of vapour within a building or equipment a boiling liquid expanding vapour explosion (BLEVE) can result when unvented containers of flammable chemicals burst with explosive violence as a result of the build-up of internal pressure unconfmed vapour cloud explosion (UVCE) can result from ignition of a very large vapour or gas/air cloud. 

Boiling liquid expanding vapour explosion follows failure of a pressurized eontainer of flaimnable liquid, e.g. LPG, or a sealed vessel eontaining volatile flammable liquids, under fire eonditions. Ignition results in a fireball and missiles. 

Boiling liquid expanding vapour explosions (BLEVE)... 

Boiling liquid expanding vapour explosions occur when there is a sudden release of vapour, containing liquid droplets, due to the failure of a storage vessel exposed to fire. A serious incident involving the failure of a LPG (Liquified Petroleum Gas) storage sphere occurred at Feyzin, France, in 1966, when the tank was heated by an external fire fuelled by a leak from the tank see Lees (1996) and Marshall (1987). 

A Boiling Liquid Expanding Vapour Explosion, or BLEVE, is an industrial event related to the laboratory bump occasioned when the inadequately mixed bottom of a vessel of liquid becomes superheated, then explosively boils. In the industrial version, rupture of a pressurised container is usually involved. Although strictly speaking a non-reactive physical hazard, chemical fires and explosions, with fatalities, often follow. Means of estimating risk and prevention, with a fist of incidents are given[l], A more ferocious version, the Boiling Liquid Compressed Bubble... 

Boiling liquid expanding vapour explosion Material producing much gas on decomposition Boiling point Bench scale calorimeter... 

Abbasi, T., and Abbasi, S. (2007) The boiling liquid expanding vapour explosion (BLEVE) Mechanism, consequence assessment, management. Journal of Hazardous Materials 141, 480-519. 

Explosion of a vapour emanating from a boiling liquid (Boiling Liquid Expanding Vapour Explosion = BLEVE)... 

BLEVE Boiling Liquid Expanding Vapour Explosion... 

An important hazard in the process industry is the boiling liquid expanding vapour explosion (BLEVE). This is understood to be the explosively rapid vaporization and corresponding release of energy of a liquid, flammable or otherwise, upon its sudden release from containment under greater-than-atmospheric pressure at a temperature above its atmospheric boiling point [37]. It is a physical explosion which is a consequence of sudden pressure relief. If a flammable material is involved a chemical explosion or a fireball can follow. 

A boiling liquid expanding vapour explosion, which occurs from the sudden release to atmosphere of a large mass of pressurized liquid which is above its boiling point at atmospheric pressure. A primary cause is an external flame impinging on the shell of a vessel above the liquid level, weakening the shell and resulting in sudden rupture. 

T. Abbasi and S. Abbasi, "The Boiling Liquid Expanding Vapour Explosion (BLEVE) Mechanism, Consequence Assessment, Management," Journal of Hazardous Materials, vol. 141,(2007), 489-519. 

Ramier, S., and J. E. S. Venart. 2000. Boiling Liquid Expanding Vapour Explosions Dynamic Repressurization and Two-Phase Discharge, in Hazards XV, IChemE Symposium Series no. 147, Rugby, pp. 527-537. 

---