<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>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.</p>
</abstract>

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.

Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station

Kharkiv National Aerospace University “KhAI”

Environmental and Climate Technologies

This work is licensed under the Creative Commons Attribution 4.0 International License.

This study aims to present computational technology that can be used to evaluate numerically the harmful environmental consequences caused by an accidental...

Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station

Publié en ligne: 19 juin 2024

Pages: 181 - 194

Reçu: 08 avr. 2024

Accepté: 09 mai 2024

DOI: https://doi.org/10.2478/rtuect-2024-0015

Mots clés
Explosion wave front, human health impact degree, hydrogen explosion, maximum excessive pressure, structure destruction level

© 2024 Yurii Skob et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Numerical Evaluation of Harmful Consequences after Accidental Explosion at a Hydrogen Filling Station

Publié en ligne: 19 juin 2024

Pages: 181 - 194

Reçu: 08 avr. 2024

Accepté: 09 mai 2024

DOI: https://doi.org/10.2478/rtuect-2024-0015

Mots clésExplosion wave front, human health impact degree, hydrogen explosion, maximum excessive pressure, structure destruction level

© 2024 Yurii Skob et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Mots clés
Explosion wave front, human health impact degree, hydrogen explosion, maximum excessive pressure, structure destruction level