Yes, there are two (2) types of BLEVEs, and much like the myth that BLEVE’s only happen to Pressure Vessels with liquified flammable gases, COLD BELVEs account for nearly 25% of all BLEVEs. So what is the difference between the two? Super GROK explains it better than I could…
A BLEVE (Boiling Liquid Expanding Vapor Explosion) occurs when a vessel containing pressurized liquid above its atmospheric boiling point suddenly ruptures. This causes rapid depressurization, leading to explosive boiling and vapor expansion as the liquid flashes to gas.
The terms hot BLEVE and cold BLEVE distinguish the scenarios based on the liquid’s temperature relative to its superheat limit, the cause of failure, and the resulting effects (especially for flammable materials).
