A Model for Molten Fuel-Coolant Interaction during Melt Slumping in a Nuclear Reactor

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This paper describes a simple fuel melt slumping model to replace the current parametric model in SCDAP/RELAP5. Specifically, a fuel-coolant interaction (FCI) model is developed to analyze the slumping molten fuel, molten fuel breakup, heat transfer to coolant, relocation of the molten droplets, size of the partially solidified particles that settle to the bottom of the lower plenum, and melt-plenum interaction, if any. Considering our objectives, the molten fuel jet breakup model, and fuel droplets Lagrangian model as included in a code TEXAS-V with Eulerian thermal hydraulics for water and steam from SCDAP/RELAP5 were used. The model was assessed with … continued below

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1369 Kilobytes pages

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Siefken, L. J. & Sohal, M. S. October 1, 1999.

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This paper describes a simple fuel melt slumping model to replace the current parametric model in SCDAP/RELAP5. Specifically, a fuel-coolant interaction (FCI) model is developed to analyze the slumping molten fuel, molten fuel breakup, heat transfer to coolant, relocation of the molten droplets, size of the partially solidified particles that settle to the bottom of the lower plenum, and melt-plenum interaction, if any. Considering our objectives, the molten fuel jet breakup model, and fuel droplets Lagrangian model as included in a code TEXAS-V with Eulerian thermal hydraulics for water and steam from SCDAP/RELAP5 were used. The model was assessed with experimental data from MAGICO-2000 tests performed at University of California at Santa Barbara, and FARO Test L-08 performed at Joint Research Center, Ispra, Italy. The comparison was found satisfactory.

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1369 Kilobytes pages

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INIS; OSTI as DE00010480

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  • 9th International Meeting on Nuclear Reactor Thermal Hydraulics, San Francisco, CA (US), 10/05/1999--10/08/1999

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  • Report No.: INEEL/CON-99-00151
  • Grant Number: AC07-94ID13223
  • Office of Scientific & Technical Information Report Number: 10480
  • Archival Resource Key: ark:/67531/metadc621527

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  • October 1, 1999

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  • June 16, 2015, 7:43 a.m.

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  • July 19, 2016, 12:28 p.m.

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Thumbnail image of item number 1 in: 'A Model for Molten Fuel-Coolant Interaction during Melt Slumping in a Nuclear Reactor'.
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Siefken, L. J. & Sohal, M. S. A Model for Molten Fuel-Coolant Interaction during Melt Slumping in a Nuclear Reactor, article, October 1, 1999; Idaho Falls, Idaho. (https://digital.library.unt.edu/ark:/67531/metadc621527/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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