An inter-comparison exercise on CFD model capabilities to simulate hydrogen deflagrations with pressure relief vents

D. Baraldi, A. Kotchourko, A. Lelyakin, J. Yanez, A. Gavrikov, A. Efimenko, F. Verbecke, D. Makarov, V. Molkov, A. Teodorczyk

    Research output: Contribution to journalArticle

    27 Citations (Scopus)

    Abstract

    The comparison between experimental data and simulation results of hydrogen explosions in a vented vessel is described in the paper. The validation exercise was performed in the frame of the European Commission co-funded Network of Excellence HySafe (Hydrogen Safety as an Energy Carrier) that has the objective to facilitate the safe introduction of hydrogen technologies. The mitigation effect of vents on the strength of hydrogen explosions is a relevant issue in hydrogen safety. Experiments on stoichiometric hydrogen deflagrations in a 0.95 m3 vessel with vents of different size (0.2 m2 and 0.3 m2) have been selected in the available scientific literature in order to assess the accuracy of computational tools and models in reproducing experimental data in vented explosions. Five organizations with experience in numerical modelling of gas explosions have participated to the code benchmarking activities with four CFD codes (COM3D, REACFLOW, b0b and FLUENT) and one code based on a mathematical two-zone model (VEX). The numerical features of the different codes and the simulations results are described and compared with the experimental measurements. The agreement between simulations and experiments can be considered satisfactory for the maximum overpressure while correctly capturing some relevant parameters related to the dynamics of the phenomena such as the pressure rise rate and its maximum has been shown to be still an open issue.

    LanguageEnglish
    Pages12381-12390
    Number of pages10
    JournalInternational Journal of Hydrogen Energy
    Volume35
    Issue number22
    DOIs
    Publication statusPublished - 1 Nov 2010

    Fingerprint

    deflagration
    Vents
    vents
    physical exercise
    charge flow devices
    Computational fluid dynamics
    Hydrogen
    Explosions
    hydrogen
    explosions
    vessels
    safety
    gas explosions
    overpressure
    simulation
    Benchmarking
    Experiments
    Gases

    Keywords

    • CFD
    • Hydrogen safety
    • Vented combustion

    Cite this

    Baraldi, D. ; Kotchourko, A. ; Lelyakin, A. ; Yanez, J. ; Gavrikov, A. ; Efimenko, A. ; Verbecke, F. ; Makarov, D. ; Molkov, V. ; Teodorczyk, A. / An inter-comparison exercise on CFD model capabilities to simulate hydrogen deflagrations with pressure relief vents. In: International Journal of Hydrogen Energy. 2010 ; Vol. 35, No. 22. pp. 12381-12390.
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    abstract = "The comparison between experimental data and simulation results of hydrogen explosions in a vented vessel is described in the paper. The validation exercise was performed in the frame of the European Commission co-funded Network of Excellence HySafe (Hydrogen Safety as an Energy Carrier) that has the objective to facilitate the safe introduction of hydrogen technologies. The mitigation effect of vents on the strength of hydrogen explosions is a relevant issue in hydrogen safety. Experiments on stoichiometric hydrogen deflagrations in a 0.95 m3 vessel with vents of different size (0.2 m2 and 0.3 m2) have been selected in the available scientific literature in order to assess the accuracy of computational tools and models in reproducing experimental data in vented explosions. Five organizations with experience in numerical modelling of gas explosions have participated to the code benchmarking activities with four CFD codes (COM3D, REACFLOW, b0b and FLUENT) and one code based on a mathematical two-zone model (VEX). The numerical features of the different codes and the simulations results are described and compared with the experimental measurements. The agreement between simulations and experiments can be considered satisfactory for the maximum overpressure while correctly capturing some relevant parameters related to the dynamics of the phenomena such as the pressure rise rate and its maximum has been shown to be still an open issue.",
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    Baraldi, D, Kotchourko, A, Lelyakin, A, Yanez, J, Gavrikov, A, Efimenko, A, Verbecke, F, Makarov, D, Molkov, V & Teodorczyk, A 2010, 'An inter-comparison exercise on CFD model capabilities to simulate hydrogen deflagrations with pressure relief vents', International Journal of Hydrogen Energy, vol. 35, no. 22, pp. 12381-12390. https://doi.org/10.1016/j.ijhydene.2010.08.106

    An inter-comparison exercise on CFD model capabilities to simulate hydrogen deflagrations with pressure relief vents. / Baraldi, D.; Kotchourko, A.; Lelyakin, A.; Yanez, J.; Gavrikov, A.; Efimenko, A.; Verbecke, F.; Makarov, D.; Molkov, V.; Teodorczyk, A.

    In: International Journal of Hydrogen Energy, Vol. 35, No. 22, 01.11.2010, p. 12381-12390.

    Research output: Contribution to journalArticle

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