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Using liquid superheating energy for a quick estimation of overpressure in BLEVEs and similar explosions

Joaquim Casal, Josep M. Salla

Journal of Hazardous Materials

Cilt: 137, Sayı: 3, 1321-1327, 2006/10/11

A method is proposed for the quick estimation of the peak overpressure caused by a Boiling Liquid Expanding Vapor Explosion (BLEVE) or a similar explosion. The method is based on the use of the “superheating energy” (SE), which is the difference between the specific enthalpy of the liquid at the temperature just before the explosion and the specific enthalpy of the liquid at its saturation temperature, at atmospheric pressure. The analysis performed with a set of reference substances showed that in a BLEVE or in similar explosions, the energy converted into overpressure will range between 3.5 and 14% of SE. The comparison of the values thus obtained with experimental data from the literature shows a fairly good agreement.

Anahtar Kelimeler: BLEVE; Explosion; Superheat limit temperature; Superheating energy; Overpressure

Elsevier B. V.

DOI: 10.1016/j.jhazmat.2006.05.001

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