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

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Sinha, Anubhav, Vendra, C. Madhav Rao and Wen, Jennifer X. (2019) Modular phenomenological model for vented explosions and its validation with experimental and computational results. Journal of Loss Prevention in the Process Industries, 61 . pp. 8-23. doi:10.1016/j.jlp.2019.05.017 ISSN 0950-4230.

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Official URL: http://dx.doi.org/10.1016/j.jlp.2019.05.017

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Abstract

The present study reports a modular phenomenological 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., 2019). 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. First the model components are assessed using available experimental results. Comparison of flame arrival time and flame propagation inside the enclosure are made, which demonstrate the ability of the model to capture flame propagation accurately. Suggestions are also made for vent panel installation to reduce peak overpressure in accidental explosions.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Divisions: Faculty of Science, Engineering and Medicine > Engineering > Engineering
Library of Congress Subject Headings (LCSH): Explosions -- Mathematical models, Hydrogen as fuel
Journal or Publication Title: Journal of Loss Prevention in the Process Industries
Publisher: Elsevier Ltd
ISSN: 0950-4230
Official Date: September 2019
Dates:
DateEvent
September 2019Published
30 May 2019Available
29 May 2019Accepted
Volume: 61
Page Range: pp. 8-23
DOI: 10.1016/j.jlp.2019.05.017
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Date of first compliant deposit: 31 May 2019
Date of first compliant Open Access: 30 June 2020

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