Abstract

The technological development of pressure systems is closely associated with the growth of various technologies in petrochemical, oil services, power, and aerospace industry. The closed boundary system such as a pressure vessel, pipe, tube, and barrel, in which an unforeseen ill design or installation imbalance between interior and external pressure conditions can result into a hazardous situation, and an unexpected catastrophic failure of the system. These accidental failures most likely lead to escalation of events due to hazardous projectiles impacting the surrounding environment.

The kinetic energy contained in the projectile are dependent on the size of pressure vessel, density of the fluid (gas or fluid), and pressure of contained media. Numerous studies have shown the relationship between the contained media within the pressure vessel and fragment velocity. However, a gap still persists in regard to the effect of elastic strain energy of the vessel itself on the projectile velocity. In this study, we study the correlation between elastic strain energy of a pressure vessel and the projectile velocity. Several parameters, such as contained media, internal pressure, fluid nozzeling, volumetric expansion with respect to diameter and thickness of pressure vessel were considered to investigate their influence on the level of consequence in an accidental event. The findings of this study aim to provide important guidance for the design and operation of high pressure systems and testing.

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