For the purpose of nuclear safety analysis, a reactive flow solver has been developed to determine the hazard potential of large-scale hydrogen explosions. Without using empirical transition criteria, the whole combustion process (including DDT) is computed within a single solver framework. In this paper, we present massively parallelized three-dimensional explosion simulations in a full-scale pressurized water reactor of the Konvoi type. Several generic DDT scenarios in globally lean hydrogen-air mixtures are examined to assess the importance of different input parameters. It is demonstrated that the explosion process is highly sensitive to mixture composition, ignition location and thermodynamic initial conditions. Pressure loads on the confining structure show a profoundly dynamic behavior depending on the position in the containment.
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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
Massively Parallelized Simulation of Deflagration-to-Detonation Transition in a Konvoi-Type Pressurized Water Reactor
Josef Hasslberger,
Josef Hasslberger
Technische Universität München, Garching, Germany
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Peter Katzy,
Peter Katzy
Technische Universität München, Garching, Germany
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Thomas Sattelmayer,
Thomas Sattelmayer
Technische Universität München, Garching, Germany
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Lorenz R. Boeck
Lorenz R. Boeck
California Institute of Technology, Pasadena, CA
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Josef Hasslberger
Technische Universität München, Garching, Germany
Peter Katzy
Technische Universität München, Garching, Germany
Thomas Sattelmayer
Technische Universität München, Garching, Germany
Lorenz R. Boeck
California Institute of Technology, Pasadena, CA
Paper No:
ICONE24-60093, V005T15A002; 10 pages
Published Online:
October 25, 2016
Citation
Hasslberger, J, Katzy, P, Sattelmayer, T, & Boeck, LR. "Massively Parallelized Simulation of Deflagration-to-Detonation Transition in a Konvoi-Type Pressurized Water Reactor." Proceedings of the 2016 24th International Conference on Nuclear Engineering. Volume 5: Student Paper Competition. Charlotte, North Carolina, USA. June 26–30, 2016. V005T15A002. ASME. https://doi.org/10.1115/ICONE24-60093
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