Blind-prediction: Estimating the consequences of vented hydrogen deflagrations for homogeneous mixtures in 20-foot ISO containers

Abstract

This paper summarises the results from a blind-prediction study for models developed for estimating the consequences of vented hydrogen deflagrations. The work is part of the project Improving hydrogen safety for energy applications through pre-normative research on vented deflagrations (HySEA). The scenarios selected for the blind-prediction entailed vented explosions with homogeneous hydrogen-air mixtures in a 20-foot ISO container. The test program included two configurations and six experiments, i.e. three repeated tests for each scenario. The comparison between experimental results and model predictions reveals reasonable agreement for some of the models, and significant discrepancies for others. It is foreseen that the first blind-prediction study in the HySEA project will motivate developers to improve their models, and to update guidelines for users of the models.

Flame Surface Density based mean reaction rate closure for Reynolds averaged Navier Stokes methodology in turbulent premixed Bunsen flames with non-unity Lewis number

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“…The BML modelling methodologies discussed in this paper are still frequently used in the context of explosions or internal combustion engines [55][56][57][58][59][60][61][62][63]. However, the findings of the current paper are not possible to extract from those studies.…”

Simulating vented hydrogen deflagrations: Improved modelling in the CFD tool FLACS-hydrogen

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CFD/FEA connected modeling and analysis of vapor cloud explosion at a wastewater storage pond of a chemical plant in Korea

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