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

Skjold, Trygve; Hisken, Helene; Bernard, Laurence; Mauri, Lorenzo; Atanga, Gordon; Lakshmipathy, Sunil; Lucas, Melodia; Carcassi, Marco Nicola Mario; Schiavetti, M.; Rao, Vendra C. Madhav; Sinha, Anubhav; Wen, Jennifer X.; Tolias, Ilias C.; Giannissi, S.G.; Venetsanos, Alexandros G.; Stewart, James R.; Hansen, Olav R.; Kumar, Chenthil; Krumenacker, Laurent; Florian, Laviron,; Jambut, Romain; Huser, Asmund

doi:10.1016/j.jlp.2019.06.013

Cited by 19 publications

(10 citation statements)

References 36 publications

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“…13 (a)-13(d). More details about the experimental investigation can be found elsewhere [2][3][4]. Moreover, to mimic realistic accidental scenarios, it was decided to test a case with stratified mixture and also a case with stratified mixture and obstacle (Pipe rack).…”

Section: Comparison Of Model Predictions With Experimental Resultsmentioning

confidence: 99%

“…Moreover, to mimic realistic accidental scenarios, it was decided to test a case with stratified mixture and also a case with stratified mixture and obstacle (Pipe rack). These tests are carried out in roof-vented configuration (Skjold et al [4]). An equivalent fuel concentration of 24% is used for model calculations for the stratified cases.…”

Section: Comparison Of Model Predictions With Experimental Resultsmentioning

confidence: 99%

“…Further, there is a large set of experimental results of vented hydrogen explosion in a 20-foot ISO container under the aegis of HySEA project (Skjold et al [2][3][4]). Overpressure measurements are reported for these experiments.…”

Section: (A) Hysea Experiments With 20-feet Iso Containersmentioning

confidence: 99%

“…Additionally, computational efforts are also focused on developing an in-house code that can simulate explosion phenomenon accurately. A dedicated in-house solver HyFOAM based on OpenFOAM platform is developed and validated against experimental data from [2][3][4]. This validated code can further be used to validate engineering models.…”

Section: Introductionmentioning

confidence: 99%

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Modular phenomenological model for vented explosions and its validation with experimental and computational results

Sinha

Rao

Wen

2019

Journal of Loss Prevention in the Process Industries

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The present study reports a modular engineering model for predicting peak pressure in vented explosions. Modelling assumptions are explained in detail and model components are validated against experimental and computational results. A basic version of this model is reported in our earlier paper (Sinha et al. [1]). Previous experimental and modelling efforts on vented explosion have primarily focussed on idealized condition of empty container with uniformly mixed fuel. However, in real accidents, there are often obstacles in flame path, and a leaked fuel may not get enough time to mix uniformly. These realistic accidental scenarios are accounted for in this extended model. The model is further simplified, and a final equation is proposed which depend on two fuel related parameters and two geometric parameters. Fuel parameters are pre-tabulated, and geometric parameters are easy to compute. Procedure to compute pressure generated by external explosion and internal pressure are outlined in detail. Experimental results available in open literature are used to evaluate model prediction capabilities. The model, in principle should be applicable for any gaseous fuel. However, the focus of the present investigation is to assess it for hydrogen explosions. In parallel to the modelling effort, a dedicated in-house solver HyFOAM is developed utilizing OpenFOAM platform. The HyFOAM predictions are validated against experimental results from the recently published test data involving hydrogen explosion in a 20-feet ISO container (Skjold et al. [2-4]). Moreover, as experimental investigations are expensive and require significant testing and safety infrastructure, a limited number of scenarios can be tested experimentally. In 2 addition to the experimental results, few more cases are simulated using HyFOAM and engineering model results are compared with the CFD results, and a reasonably good match is observed.

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Section: Comparison Of Model Predictions With Experimental Resultsmentioning

confidence: 99%

Section: Comparison Of Model Predictions With Experimental Resultsmentioning

confidence: 99%

Section: (A) Hysea Experiments With 20-feet Iso Containersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modular phenomenological model for vented explosions and its validation with experimental and computational results

Sinha

Rao

Wen

2019

Journal of Loss Prevention in the Process Industries

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“…Previous studies have identified that maintenance planning often requires an optimal solution for energy and safety, which is minimally practiced on construction sites (Mota et al , 2018). However, Skjold et al (2018) suggested there are a few energy and safety considerations to be taken into account, such as providing guidelines for intensive and systematic ventilation, enhancing the strategic knowledge of fire protection benefits, improving the competency of construction managers and providing technical models and support tools to help planning. Energy and safety management considerations on construction sites should seek to optimise public health and safety throughout the whole construction process.…”

Section: Discussionmentioning

confidence: 99%

A BIM-based model checking in the green building maintenance: a review

Ismail

2022

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Purpose This paper aims to identify the different system approach using building information modelling (BIM) technology that is equipped with automated evaluation processes. BIM research has mainly focused on theoretical models of acceptance in the green building (GB) maintenance industry. However, BIM has the potential to the competency’s performance and design knowledge of building control instrument. Realising this potential requires a study of BIM at the maintenance planning level, which is considered to be BIM-based model checking (BMC). BMC and its effect in the maintenance planning have not been sufficiently investigated. Design/methodology/approach The aim of this paper is to present a critical review of literature on the theoretical background of BMC practices and the main features of information and communication technology tools and techniques in the GB maintenance projects. Findings A theoretical framework of BMC is developed and presented. The proposed model incorporates requirement for maintaining a competency’s performance on maintenance planning schemes of GB projects and the importance of early integration of BMC in the design phase to identify alternative methods to cogenerate, monitor and optimise BMC. Originality/value It is found that variables facilitating BMC are integrated at different GB maintenance environments levels and are shaped by the context. Directions for future research are presented.

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Effects of ignition location, obstacles, and vent location on the vented hydrogen-air deflagrations with low vent burst pressure in a 20-foot container

Luo

Wang

Rui

et al. 2020

Fuel

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

Cited by 19 publications

References 36 publications

Modular phenomenological model for vented explosions and its validation with experimental and computational results

Modular phenomenological model for vented explosions and its validation with experimental and computational results

A BIM-based model checking in the green building maintenance: a review

Effects of ignition location, obstacles, and vent location on the vented hydrogen-air deflagrations with low vent burst pressure in a 20-foot container

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