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Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station
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Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station
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Journal Article
Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station
2024
Overview
This study aims to present computational technology that can be used to evaluate numerically the harmful environmental consequences caused by an accidental hydrogen release from failed high-pressure dispensing cylinders and its explosion at a vehicle hydrogen filling station. A coupled problem of a hydrogen explosion products expansion in the atmospheric ground layer and a harmful explosion pressure wave shock impact on service personnel and infrastructure buildings at an accident site is solved by means of computer experiment simulation series. A spatial time-dependent model of compressible hydrogen-air mixture flow is used to obtain pressure history in calculation area in order to assess maximum overpressure in control points of human possible locations and on building surfaces exposed to hydrogen blast wave impact. A deterministic impact consequences model is based on comparing maximum overpressure values extracted from the mathematical model with threshold ranges corresponding to certain degrees of human damage and infrastructure destruction. The presented computer technology allows safety experts to identify potentially dangerous zones by means of mathematical modelling and recommend effective protection measures to mitigate negative consequences of explosions.
Publisher
Sciendo,Riga Technical University
Subject
/ Hydrogen
