Vendra, C. Madhav Rao and Wen, Jennifer X. (2017) Vented hydrogen deflagations in an ISO container. In: International Conference on Hydrogen Safety, Hamburg, Germany, 11-13 Sep 2017
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Abstract
The commercial deployment of hydrogen will often involve housing portable hydrogen fuel cell power units in 20-foot or 40-foot shipping containers. Due to the unique properties of hydrogen, hazards identification and consequence analysis is essential to safe guard the installations and design measures to mitigate potential hazards. In the present study, the explosion of a premixed hydrogen-air cloud enclosed in a 20-foot container of 20’ x 8’ x 8’.6” is investigated in detail numerically. Numerical simulations have been performed using HyFOAM, a dedicated solver for vented hydrogen explosions developed in-house within the frame of the open source computational fluid dynamics (CFD) code OpenFOAM toolbox. The flame wrinkling combustion model is used for modelling turbulent deflagrations. Additional sub-models have been added to account for lean combustion properties of hydrogen-air mixtures. The predictions are validated against the recent experiments carried out by Gexcon as part of the HySEA project supported by the Fuel Cells and Hydrogen 2 Joint Undertaking (FCH 2 JU) under the Horizon 2020 Framework Programme for Research and Innovation. The effects of congestion within the containers on the generated overpressures are also investigated.
| Item Type: | Conference Item (Paper) |
|---|---|
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering |
| Library of Congress Subject Headings (LCSH): | Hydrogen as fuel -- Combustion -- Mathematical models, Fluid dynamics, Containers |
| Official Date: | 1 June 2017 |
| Dates: | Date Event 12 July 2017 Updated 1 June 2017 Accepted 18 April 2017 Submitted |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Date of first compliant deposit: | 4 January 2018 |
| Date of first compliant Open Access: | 4 January 2018 |
| RIOXX Funder/Project Grant: | Project/Grant ID RIOXX Funder Name Funder ID |
| Conference Paper Type: | Paper |
| Title of Event: | International Conference on Hydrogen Safety |
| Type of Event: | Conference |
| Location of Event: | Hamburg, Germany |
| Date(s) of Event: | 11-13 Sep 2017 |
| Related URLs: | |
| URI: | https://wrap.warwick.ac.uk/97157/ |
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