The Pressure Peaking Phenomenon - Validation for Unignited Releases in Laboratory-Scale Enclosure

This study is aimed at the validation of the pressure peaking phenomenon against laboratory-scale experiments. The phenomenon was discovered recently as a result of analytical and numerical studies performed at Ulster University. The phenomenon is characterized by the existence of a peak on the overpressure transient in an enclosure with vent(s) at some conditions. The peak overpressure can significantly exceed the steady-state pressure and jeopardise a civil structure integrity causing serious life safety and property protection problems.

Blast Wave From Hydrogen Storage Rupture in a Fire

This study addresses one of knowledge gapsin hydrogen safety science and engineering, i.e. apredictive model for calculation of deterministic separation distancesdefined bythe parameters ofa blast wave generated by a high-pressure gasstorage tank rupture in a fire. An overview of existing methods to calculate stored in a tank internal(mechanical) energy anda blast wave decayis presented.

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