Methods for vapour cloud explosion blast modelling

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

“…However, if this effect has already corrected in the TNT curve used to determine P [8], this correction is not required.…”

“…The peak overpressure was obtained from the plot of P versus d n [8]. The P was calculated for the following situations: liquid mass = 100 kg, d = 50 m, and liquid mass = 10,000 kg and d = 50 m (Fig.…”

A CFD-based Approach to Predict Explosion Overpressure: A Comparison to Current Methods

“…Unfortunately, the literature does not disclose a detailed description of the TNO values 31,32 . The curve of the CFX simulation data seems to follow between levels 5 and 7.…”

The quantitative assessment of domino effects caused by overpressure

“…Thus, a QRA generally requires simplifying assumptions both for the time evolution of the accidental phenomena and the consequence evaluation. An almost universal hypothesis used in QRA to model the consequences of explosions is to assume that all the accidental phenomena previously described produce blast waves which can be idealised and compared to the ideal blast wave produced by an equivalent charge of one or more solid "point" explosions (TNT, Baker-Strehlow and Multi-Energy methods) [21][22][23]. By these methods, peak overpressure P • and impulse I • can be easily determined.…”