The CFD combustion modeling approach based on two combustion models was applied to a hydrogen deflagration experiment conducted in a large-scale confined experimental vessel. The used combustion models were Zimont’s Turbulent Flames Speed Closure (TFC) model and Lipatnikov’s Flame Speed Closure (FSC) model. The conducted simulations are aimed to aid identifying and evaluating the potential hydrogen risks in Nuclear Power Plant (NPP) containment. The simulation results show good agreement with experiment for axial flame propagation using the Lipatnikov combustion model. However substantial overprediction in radial flame propagation is observed using both combustion models, which consequently results also in overprediction of the pressure increase rate and overall combustion energy output. As assumed for a large-scale experiment without any turbulence inducing structures, the combustion took place in low-turbulence regimes, where the Lipatnikov combustion model, due to its inclusion of quasi-laminar source term, has advantage over the Zimont model.
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2016 24th International Conference on Nuclear Engineering
June 26–30, 2016
Charlotte, North Carolina, USA
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5005-3
PROCEEDINGS PAPER
Large-Scale Homogeneous Hydrogen-Air-Steam Deflagration Experiment Simulated Using Two Turbulent Flame Speed Closure Models
Tadej Holler,
Tadej Holler
Jožef Stefan Institute, Ljubljana, Slovenia
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Varun Jain,
Varun Jain
Nuclear Research and Consultancy Group, Petten, The Netherlands
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Ed M. J. Komen,
Ed M. J. Komen
Nuclear Research and Consultancy Group, Petten, The Netherlands
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Ivo Kljenak
Ivo Kljenak
Jožef Stefan Institute, Ljubljana, Slovenia
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Tadej Holler
Jožef Stefan Institute, Ljubljana, Slovenia
Varun Jain
Nuclear Research and Consultancy Group, Petten, The Netherlands
Ed M. J. Komen
Nuclear Research and Consultancy Group, Petten, The Netherlands
Ivo Kljenak
Jožef Stefan Institute, Ljubljana, Slovenia
Paper No:
ICONE24-60134, V005T15A006; 6 pages
Published Online:
October 25, 2016
Citation
Holler, T, Jain, V, Komen, EMJ, & Kljenak, I. "Large-Scale Homogeneous Hydrogen-Air-Steam Deflagration Experiment Simulated Using Two Turbulent Flame Speed Closure Models." Proceedings of the 2016 24th International Conference on Nuclear Engineering. Volume 5: Student Paper Competition. Charlotte, North Carolina, USA. June 26–30, 2016. V005T15A006. ASME. https://doi.org/10.1115/ICONE24-60134
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