Abstract
This study presents a comparative analysis of empirical damage data from the Gangneung hydrogen-tank explosion and the predicted impact range generated by the ALOHA modeling software. The actual incident resulted in two fatalities and six injuries, with structures within a 50 m radius experiencing destruction and a structure at a distance of 170 m sustaining partial damage. ALOHA simulations predicted structural failure within 183 m, window shattering within a 250 m radius, and thermal-radiation effects limited to first-degree burns within 14 m. Results of Probit analysis show that the structural damage can range from 0% to 99%, the level of glass shattering can be between 94% and 100%, and damage from radiant heat is limited to first-degree burns. A comparative assessment of the actual case and simulation outcomes revealed almost identical results, with the structures impacted within a minimum radius of 170 m in both cases. The findings of this study are expected to facilitate in calculating the impact range of hydrogen explosions, developing effective accident response plans and damage-minimization measures, and establishing safety measures, such as the installation of protective walls, to prevent additional damage from explosions after an accident occurs.
Published Version
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