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Boksburg explosion – the science behind the blast

The massive Boksburg blast, which took the lives of 18 people and left dozens more badly burned and injured, was probably what is known as a BLEVE (boiling liquid expanding vapor explosion), one of the most devastating non-military explosions. BLEVEs normally occur when a vessel containing pressurised fluid – like the Liquid Petroleum Gas (LPG) being carried by the truck which caught fire in Boksburg – ruptures after it reaches a temperature above the boiling point of its contents. Why did it blow? In the case of pressurised LPG, that boiling point is below zero degrees Celsius. When this happens,...

from The Citizen https://www.citizen.co.za/news/boksburg-explosion-science-behind-the-blast/

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