Modelling hazardous distances for large-scale liquid hydrogen pool releases

Journal article


Holborn, P., Benson, C.M. and Ingram, J.M. (2020). Modelling hazardous distances for large-scale liquid hydrogen pool releases. International Journal of Hydrogen Energy.
AuthorsHolborn, P., Benson, C.M. and Ingram, J.M.
Abstract Abstract An analysis has been carried out using a CFD model (FLACS) to simulate large-scale liquid hydrogen (LH2) pool releases to examine their behaviour and predict the LH2 pool size, downwind hazardous distance, and flammable mass of the hydrogen-air clouds formed for different environmental conditions and release scenarios. The FLACS pool model reproduces similar qualitative trends with regard to the effect of spill rate, spill duration and wind speed on the flammable cloud extent to those observed in the NASA WSTF experimental tests, although significant quantitative differences in the results are also apparent. FLACS simulations were also performed for a number of different transient and continuous LH2 spill release rates to predict the maximum downwind hazardous distances as a function of the LH2 spill release rate. The results are intended to assist with assessing the safety of future LH2 aircraft and airport LH2 storage facilities, being considered as part of the EU ENABLEH2 project.
KeywordsFlammable cloud dispersion; FLACS; Hazardous distance; LH2 spill; ENABLEH2; Liquid hydrogen safety
Year2020
JournalInternational Journal of Hydrogen Energy
PublisherElsevier
ISSN03603199
Digital Object Identifier (DOI)doi:10.1016/j.ijhydene.2020.06.131
FunderEuropean Union H2020 programme under GA
Publication process dates
Accepted14 Jun 2020
Accepted author manuscript
License
File Access Level
Open
Permalink -

https://openresearch.lsbu.ac.uk/item/8q03x

Restricted files

Accepted author manuscript

  • 12
    total views
  • 0
    total downloads
  • 0
    views this month
  • 0
    downloads this month

Export as

Related outputs

Performance Evaluation of Nitrogen for Fire Safety Application in Aircraft
Dinesh, A, Benson, CM, Holborn, PG, Sampath, S and Xiong, Y (2020). Performance Evaluation of Nitrogen for Fire Safety Application in Aircraft. Reliability Engineering & System Safety. 202, p. 107044.
Combined Hazard Analyses to Explore the Impact of Liquid Hydrogen Fuel on the Civil Aviation Industry
Benson, C, Holborn, P, Ingram, J, Rolt, A and Alexander, E (2020). Combined Hazard Analyses to Explore the Impact of Liquid Hydrogen Fuel on the Civil Aviation Industry. ASME Turbo Expo 2020. London 22 - 26 Jun 2020
Ignition of flammable hydrogen/air mixtures by high mass mechanical impact of Magnox contaminated surfaces
Averill, A., Ingram, J., Holborn, P., Battersby, P. and Benson, C. (2020). Ignition of flammable hydrogen/air mixtures by high mass mechanical impact of Magnox contaminated surfaces. International Journal of Hydrogen Energy. 45 (4), pp. 3372-3380.
An analysis of civil aviation industry safety needs for the introduction of liquid hydrogen propulsion technology
Benson, CM, Ingram, JM, Battersby, PA, Mba, D, Sethi, V and Rolt, AM (2019). An analysis of civil aviation industry safety needs for the introduction of liquid hydrogen propulsion technology. TURBO EXPO Turbomachinery Technical Conference & Exposition. Phoenix AZ, USA 18 - 20 Jun 2019
Identification of ignition sources in high pressure enriched gaseous oxygen system incidents using flow chart road map diagram methodology
Benson, CM and Ingram, JM (2018). Identification of ignition sources in high pressure enriched gaseous oxygen system incidents using flow chart road map diagram methodology. Process Safety and Environmental Protection. 114, pp. 206-218.
Chemochromic Pd-V2O5 Sensors for Passive Hydrogen Detection in Nuclear Containments
O'Hara, R, Holborn, PG, Ingram, JM, Ball, J, Rathbone, P and Edge, R (2018). Chemochromic Pd-V2O5 Sensors for Passive Hydrogen Detection in Nuclear Containments. 2018 WM Symposia, Nuclear and Industrial Robotics, Remote Systems and Other Emerging Technologies. Phoenix, Arizona, USA 18 - 22 Mar 2018
Application of Bayesian methods and networks to ignition hazard event prediction in nuclear waste decommissioning operations
Averill, AF, Ingram, JM, Holborn, PG, Battersby, P and Benson, CM (2018). Application of Bayesian methods and networks to ignition hazard event prediction in nuclear waste decommissioning operations. Process Safety and Environmental Protection. 116, pp. 396-404.
Surface temperature generation during drop weight mechanical impact and the usefulness of dynamic thermocouple measurements for predicting impact ignition of flammable gases
Ingram, JM, Averill, AF, Holborn, PG, Battersby, P and Benson, CM (2018). Surface temperature generation during drop weight mechanical impact and the usefulness of dynamic thermocouple measurements for predicting impact ignition of flammable gases. Journal of Loss Prevention in the Process Industries. 55, pp. 10-18.
A comparison study into low leak rate buoyant gas dispersion in a small fuel cell enclosure using plain and louvre vent passive ventilation schemes
Ghatauray, TS, Ingram, JM and Holborn, PG (2018). A comparison study into low leak rate buoyant gas dispersion in a small fuel cell enclosure using plain and louvre vent passive ventilation schemes. International Journal of Hydrogen Energy. 44 (17), pp. 8904-8913.
Potential hazard consequences to personnel exposed to the ignition of small volumes of weakly confined stoichiometric hydrogen/air mixture
Averill, A, Ingram, J, Gomez-Augustina, L, Holborn, P, Battersby, P and Benson, CM (2018). Potential hazard consequences to personnel exposed to the ignition of small volumes of weakly confined stoichiometric hydrogen/air mixture. International Journal of Hydrogen Energy. 43 (50), pp. 22733-22745.
Domestic Refrigerator Design -Safety Issues and Opportunities
Beasley, M, Holborn, PG, Ingram, JM and Maidment, GG (2017). Domestic Refrigerator Design -Safety Issues and Opportunities. The Institute of Refrigeration Event 2nd March 2017. London South Bank University 02 - 02 Mar 2017
Energy losses during drop weight mechanical impacts with special reference to ignition of flammable atmospheres in nuclear decommissioning: theory and determination of experimental coefficients for impact analysis and prediction
Averill, AF, Ingram, JM, Holborn, PG and Battersby, P (2017). Energy losses during drop weight mechanical impacts with special reference to ignition of flammable atmospheres in nuclear decommissioning: theory and determination of experimental coefficients for impact analysis and prediction. International Journal of Impact Engineering. 109, pp. 92-103.
Characterising the performance of hydrogen sensitive coatings for nuclear safety applications
O'Hara, R, Ingram, JM, Holborn, PG, Ball, J, Edge, R and Rathbone, P (2017). Characterising the performance of hydrogen sensitive coatings for nuclear safety applications. International Conference on Hydrogen Safety (ICHS 2017). Hamburg, Germany 11 - 13 Sep 2017
A comparison study into low leak rate buoyant gas dispersion in a small fuel cell enclosure using plain and louvre vent passive ventilation schemes.
Ghatauray, T, Ingram, JM and Holborn, PG (2017). A comparison study into low leak rate buoyant gas dispersion in a small fuel cell enclosure using plain and louvre vent passive ventilation schemes. HYSAFE: International Conference On Hydrogen Safety. Hamburg, Germany 11 - 13 Sep 2017 London South Bank University.
Ignition of flammable atmospheres by mechanical stimuli
Ingram, JM (2016). Ignition of flammable atmospheres by mechanical stimuli. hazardex: Journal for Hazardous Area Environment.
Report on BSN100 standards Oxygen System Safety update for BSi ACE001 committee
Benson, CM (2016). Report on BSN100 standards Oxygen System Safety update for BSi ACE001 committee. British Standards Institution.
An experimental and CFD study into the dispersion of buoyant gas using passive venting in a small fuel cell enclosure
Ghatauray, T, Ingram, JM and Holborn, PG (2016). An experimental and CFD study into the dispersion of buoyant gas using passive venting in a small fuel cell enclosure. IChemE Hazards 26. Edinburgh 24 - 26 May 2016
Fire suppression systems in aircraft: Their past, present & future
Benson, CM, Fernandez-Cerezo, G, Holborn, PG and Mba, D (2016). Fire suppression systems in aircraft: Their past, present & future. Fire Investigation. 1 (3), pp. 34-41.
The development of a model for the prediction of polymer spontaneous ignition temperatures in high pressure enriched oxygen across a range of pressures and concentrations
Benson, CM, Bishop, AM, Ingram, JM, Phillips, R and Nolan, PF (2016). The development of a model for the prediction of polymer spontaneous ignition temperatures in high pressure enriched oxygen across a range of pressures and concentrations. Journal of Loss Prevention in the Process Industries. 44 (Nov), pp. 369-379.
Challenges for the development of EFFICIENT - An Environmentally Friendly Fire Suppression System for Cargo using Innovative Green Technology
Fernandez-Cerezo, G, Benson, CM, Holborn, PG and Mba, D (2016). Challenges for the development of EFFICIENT - An Environmentally Friendly Fire Suppression System for Cargo using Innovative Green Technology. Institute of Fire Engineers RE16. Birmingham Nov 2016