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Term of the week:

BLEVE

(Boiling Liquid Expanding Vapor Explosion) - a BLEVE occurs when a vessel containing liquid under pressure, such as a liquid propane tank, is subjected to a temperature above the liquid's boiling point. If heat raises the pressure inside the sealed tank to the point where the vessel can no longer contain the pressure, the vessel will mechanically fail and a BLEVE will occur. If the liquid inside the tank is flammable, a fire will often ensue. If not, the BLEVE will still occur, but the vapors will not ignite (a steam boiler is a common example of this). BLEVEs can also be caused by mechanical damage or overfilling.

 
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