Journal
APPLIED SCIENCES-BASEL
Volume 13, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/app132212317
Keywords
underground hydrogen storage; equivalent TNT; Concrete Damage Plasticity; minimum safety distance
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Amid the global warming crisis, hydrogen energy is gaining attention as an environmentally friendly energy source. This study analyzes the effects of hydrogen gas explosions on nearby structures and proposes minimum separation distances to ensure structural stability.
Amid the ongoing global warming crisis, there has been growing interest in hydrogen energy as an environmentally friendly energy source to achieve carbon neutrality. A stable and large-scale hydrogen storage infrastructure is essential to satisfy the increasing demand for hydrogen energy. Particularly for hydrogen refueling stations located in urban areas, technological solutions are required to ensure the stability of adjacent civil structures in the event of hydrogen storage tank explosions. In this study, a numerical analysis using equivalent trinitrotoluene (TNT) and Concrete Damage Plasticity (CDP) models was employed to analyze the dynamic behavior of the ground in response to hydrogen gas explosions in shallow underground hydrogen storage facilities and to assess the stability of nearby structures against explosion effects. According to the simulation results, it was possible to ensure the structural stability of nearby buildings and tunnel structures by maintaining a minimum separation distance. In the case of nearby building structures, a distance of at least 6 to 7 m is needed to be maintained from the underground hydrogen storage facility to prevent explosion damage from a hydrogen gas explosion. For nearby tunnel structures, a distance of at least 10 m is required to ensure structural stability.
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