Destrukce vodíkové tlakové lahve jako následek tepelného namáhání

Abstract

This diploma thesis deals with the analysis of the behavior of a pressure cylinder filled with compressed hydrogen exposed to thermal stress, specifically during a flammable liquid fire. The theoretical part summarizes basic information about pressure cylinders, their classification, legislative requirements, and methods of marking. Hazards and risks associated with thermal stress on pressure cylinders are described here, including recommended procedures for fire protection units intervening in an environment with pressure cylinders. Furthermore, the physico-chemical properties of hydrogen are presented, along with mechanisms of its ignition, combustion, and explosion. In the experimental part, the behavior of a pressure cylinder subjected to thermal stress until its destruction is analyzed in detail. The temperature evolution of the cylinder's wall and the internal pressure development during heating are monitored. Parameters such as burst pressure, generated pressure wave, fireball, and cylinder fragmentation are evaluated. The obtained results are analyzed and discussed in the conclusion. The thesis presents original experimental results on the destruction of a hydrogen pressure cylinder. The results describe the mechanisms of cylinder destruction, the effects of the pressure wave, fragmentation, and the formation of a fireball.