An experimental investigation into the ignition of leaking hydrogen

Swain, M.R.; Filoso, Patrick

doi:10.1016/j.ijhydene.2006.06.041

Cited by 57 publications

(12 citation statements)

References 2 publications

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“…Determination of whether the ignition kernel will transition to sustained jet light-up or will be subsequently extinguished, however, is beyond current predictive capabilities of simplified engineering models. Swain et al [32] and Schefer et al [11] observed centerline flame light-up boundaries near the 10% mole fraction contour; however, no explanation was given for why it occurred in this region and it is possible that the agreement was serendipitous. For the present study, the centerline jet light-up position was determined using a similar laser spark ignition apparatus to that described by Schefer et al [11].…”

Section: Ignition Probabilitiesmentioning

confidence: 98%

Ignitability and mixing of underexpanded hydrogen jets

Ruggles

Ekoto

2012

International Journal of Hydrogen Energy

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Section: Ignition Probabilitiesmentioning

confidence: 98%

Ignitability and mixing of underexpanded hydrogen jets

Ruggles

Ekoto

2012

International Journal of Hydrogen Energy

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“…Recently, Swain and coworkers have conducted experiments to determine the maximum distance of an ignition source to a hydrogen leak to ignite the leak successfully (Swain, Filoso, & Swain, 2007). As a part of this work, they have studied horizontal leaks through an aluminum wall (20 SCFM) at two different momentums (Mach number ¼ 0.1 and 0.2).…”

Section: Subsonic Jetsmentioning

confidence: 99%

“…Comparison between FLACS simulation and experimental measurements for Mach ¼ 0.1 release for the H 2 release experiments(Swain et al, 2007).…”

mentioning

confidence: 99%

Validation of CFD-model for hydrogen dispersion

Middha

Hansen

Storvik

2009

Journal of Loss Prevention in the Process Industries

100

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a b s t r a c tTo be able to perform proper consequence modelling as a part of a risk assessment, it is essential to be able to model the physical processes well. Simplified tools for dispersion and explosion predictions are generally not very useful. CFD tools have the potential to model the relevant physics and predict well, but without proper user guidelines based on extensive validation work, very mixed prediction capability can be expected. In this article, recent dispersion validation effort for the CFD tool FLACS-HYDROGEN is presented. A range of different experiments is simulated, including low-momentum releases in a garage, subsonic jets in a garage with stratification effects and subsequent slow diffusion, low momentum and subsonic horizontal jets influenced by buoyancy, and free jets from high-pressure vessels. LH 2 releases are also considered. Some of the simulations are performed as blind predictions.

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“…Studies by the University of Miami [28], Ballard Power Systems [29], Defence R&D Canada [30] and SNL [31] have established that mixtures below~8% vol. of H 2 in air are not robust enough to propagate a flame throughout an entire mixture, independent of geometry.…”

Section: Developing Knowledge To Improve Guidelines On the Indoor Usementioning

confidence: 99%

Advancing the hydrogen safety knowledge base

Weiner

2014

International Journal of Hydrogen Energy

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Computational fluid dynamics a b s t r a c t The International Energy Agency's Hydrogen Implementing Agreement (IEA HIA) was established in 1977 to pursue collaborative hydrogen research and development and information exchange among its member countries. Information and knowledge dissemination is a key aspect of the work within IEA HIA tasks, and case studies, technical reports and presentations/publications often result from the collaborative efforts. The work conducted in hydrogen safety under Task 31 and its predecessor, Task 19, can positively impact the objectives of national programs even in cases for which a specific task report is not published. The interactions within Task 31 illustrate how technology information and knowledge exchange among participating hydrogen safety experts serve the objectives intended by the IEA HIA.

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An experimental investigation into the ignition of leaking hydrogen

Cited by 57 publications

References 2 publications

Ignitability and mixing of underexpanded hydrogen jets

Ignitability and mixing of underexpanded hydrogen jets

Validation of CFD-model for hydrogen dispersion

Advancing the hydrogen safety knowledge base

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