Peer-reviewed articles 17,970 +



Title: CONSIDERATIONS ON THE INVESTIGATION OF EXPLOSION PROPAGATION IN CONFINED SPACES

CONSIDERATIONS ON THE INVESTIGATION OF EXPLOSION PROPAGATION IN CONFINED SPACES
Vlad Mihai Pasculescu; Marius Cornel Suvar; Laurentiu Munteanu; Zoltan Vass; Andrada Denisa Matei
10.5593/sgem2025/4.1
1314-2704
English
25
4.1
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA• Prof. DSc. Ildiko Tulbure, GERMANY• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
This study investigates the propagation of hydrogen explosions in confined environments, focusing on the influence of geometry on explosion dynamics. Experimental models were developed to analyze the impact of spatial constraints on pressure rise and flame acceleration.
Key parameters, including maximum pressure, flame front velocity, and pressure rise rate (dp/dt), were monitored and analyzed. The results highlight that changes in propagation direction significantly influence explosion behavior, leading to higher pressure peaks and increased flame acceleration. Comparative analysis with computational fluid dynamics (CFD) simulations confirmed the experimental trends and provided a deeper understanding of the shock wave interactions in confined spaces.
These findings contribute to the development of improved predictive models for hydrogen explosion hazards, offering valuable insights for industrial safety applications and risk mitigation strategies in environments where hydrogen is used as an energy source. Future work will focus on refining CFD models to enhance the accuracy of explosion simulations under variable confinement conditions.
[1] Hargather M., Schlieren and shadowgraph techniques: visualizing phenomena in transparent media, Springer, Germany, 2015.
[2] Hu P., Wang Q., Zhang H., Influence of chamber geometry on explosion behavior in interconnected chambers, Process Safety Progress, USA, vol. 36, issue 4, 2017, pp. 298–307.
[3] MacNguyen R., Comparison of hydrogen and hydrocarbon fuels hazards and practical risk management strategies, Process Safety Progress, USA, vol. 42, issue 2, 2023, pp. 225–241, DOI: https://doi.org/10.1002/prs.12460
[4] Munteanu L., Suvar M., Vass Z., Pasculescu A.C., Post-editing of images obtained from physical experiments of hydrogen explosions, Annals of the University of Petro?ani – Mining Engineering, Romania, vol. 25, 2024, pp. 322–332, ISSN 1454-9174, Universitas Publishing House.
[5] Niculescu T., Pasculescu D., Use of numerical simulation to study capacitive loads which is connecting to an AC power source, International Multidisciplinary Scientific GeoConference SGEM, Bulgaria, vol. 2, issue 1, 2015, pp. 391–398.
[6] Niculescu T., Pasculescu D., Pasculescu V.M., Stoica I.O., Evaluation of electrical parameters of intrinsic safety barriers of the electrical equipment intended to be used in atmospheres with explosion hazard, International Multidisciplinary Scientific GeoConference SGEM, Bulgaria, vol. 1, issue 2, 2014, pp. 169–176.
[7] Pasculescu A.C., Vasilescu G.D., Pasculescu V.M., Pintilie D.D., Numerical modelling of accidents occurred in hydrogen refuelling stations, 7th Conference on Sustainable Mobility – Climate Crisis and Resilient Transportation Systems, Greece, 2024, Lecture Notes in Intelligent Transportation and Infrastructure, Springer, eBook ISBN 978-3-031-82714-3, DOI: https://doi.org/10.1007/978-3-031-82818-8_46
[8] Suvar M.C., Zsido S., Miclea O., Pasculescu A.C., Consequence modeling of a compressed hydrogen tube trailer explosion – theoretical study, 11th International Symposium on Occupational Health and Safety (SESAM 2023), Matec Web of Conferences, France, vol. 389, 2024, Article no. 00078, DOI: https://doi.org/10.1051/matecconf/202438900078.
[9] Utu I., Pasculescu D., Power quality study in order to comply with European Norms, Calitatea – Access to Success, Romania, vol. 18, issue S1, 2017, pp. 366–371.
[10] Wang J., Zhang X., Liu Y., Effects of pressure and temperature on explosion characteristics of hydrogen-air mixtures, Journal of Loss Prevention in the Process Industries, UK, vol. 55, 2018, pp. 35–43.

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 Education and Research – National Authority for Research, project no. 23 32 02 02, title: Numerical modelling on the ignition and propagation of explosions generated by air-hydrogen 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 MEC-ANC, proiect nr. 23 32 02 02, titlu: Modelari numerice privind initierea si propagarea exploziilor cauzate de amestecuri aer-hidrogen – H2Model).
conference
Proceedings of 25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 3.1
25th International Multidisciplinary Scientific GeoConference SGEM 2025, Volume 25, Issue 3.1, 29 June - 6 July, 2025
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, 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.
29-36
29 June - 6 July, 2025
website
10402
explosion propagation, flame acceleration, hydrogen safety, pressure dynamics, shock wave interaction


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