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Title: VIRTUAL DESIGN OF STANDS FOR EXPERIMENTING WITH HYDROGEN EXPLOSIONS
VIRTUAL DESIGN OF STANDS FOR EXPERIMENTING WITH HYDROGEN EXPLOSIONS

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Nicolae-Ioan Vlasin; Cristian Raul Cioara; Gheorghe Daniel Florea; Adrian Bogdan Simon-Marinica; Zoltan Vass
10.5593/sgem2023/4.1/s17.19
10.5593/sgem2023/4.1
1314-2704
978-619-7603-59-0
English
23
4.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Renewable Energy Sources and Clean Technologies
Hydrogen explosions can occur in industrial processes, in laboratories, in hydrogen production and storage processes, or in new combustion processes used in modern transportation. This gas presents a particularly dangerous potential due to its flammability properties. The combustion reaction of this gas mixed with air or oxygen is strongly exothermic, resulting in a rapid increase in temperatures and pressures developed. When these overpressures become too great to be supported by the vessels or enclosures where the combustion reaction takes place, the walls of the storage/transport vessels suffer ruptures, thus leading to serious accidents. Hydrogen explosions occur when three conditions are met at the same time: a sufficient concentration of hydrogen, a sufficient concentration of oxygen and an effective source of initiation of the explosive mixture (open flame, electric spark, etc.).
To prevent this type of events, it is necessary to know how to handle, process and store this gas, to ensure the implementation and compliance with security protocols. This may include using explosion-proof equipment and ventilation systems and monitoring the presence of hydrogen gas in the environment.
Hydrogen explosion research has been ongoing for many years and focuses on understanding the fundamental mechanisms behind the explosive behavior of hydrogen gas, as well as developing new strategies to prevent or mitigate hydrogen explosions. The present work supports research in this field, studying the possibilities of building stands where the explosions of air-hydrogen mixtures can be experimented in a controlled manner. The design of the stand is carried out in the virtual environment, through computer simulations of hydrogen explosions in different enclosures and interconnected spaces. The results of these simulations concern the behavior of the flame front, the maximum values of temperatures and overpressures generated by the explosions, as well as the locations where these values were recorded, at different hydrogen concentrations. The usefulness of the resulting data can be found in the a priori approach of safe construction methods of stands for conducting physical experiments on hydrogen explosions, stands that are extremely necessary in the process of researching ways to prevent phenomena of this type.
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[6] Molkov V., Fundamentals of hydrogen safety engineering, Chapter P: Hydrogen fundamental properties, pp. 9, online at https://www.h2euro.org/hyfacts/2014/06/26/training-material/
[7] Arthur D., Little Inc. Final Report on an Investigation of Hazards Associated with the Storage and Handling of Liquid Hydrogen. Report C-61092, Cambridge, USA, 1960, online at http://www.hysafe.org/download/997
This work was carried out through the ”Nucleu” Program within the National Plan for Research, Development and Innovation 2022-2027, with the support of the Romanian Ministry of Research, Innovation and Digitalisation, project no. 23 32 02 02, title: Numerical modelling on the ignition and propagation of explosions generated by airhydrogen mixtures – H2Model (in Romanian: Aceasta lucrare a fost realizata prin Programul-nucleu din cadrul Planului National de Cercetare Dezvoltare si Inovare 2022-2027, derulat cu sprijinul MCID, proiect nr. 23 32 02 02, titlu: Modelari numerice privind initierea si propagarea exploziilor cauzate de amestecuri aer-hidrogen – H2Model).
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https://doi.org/10.5593/sgem2023/4.1/s17.19
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Proceedings of 23rd International Multidisciplinary Scientific GeoConference SGEM 2023
23rd International Multidisciplinary Scientific GeoConference SGEM 2023, 03 - 09 July, 2023
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Russian Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Russian Acad Arts; Turkish Acad Sci.
149-156
03 - 09 July, 2023
website
9188
hydrogen explosions, computer simulations, explosion stand, controlled explosions