Final results of the XR2-1 BWR metallic melt relocation experiment

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This report documents the final results of the XR2-1 boiling water reactor (BWR) metallic melt relocation experiment, conducted at Sandia National Laboratories for the U.S. Nuclear Regulatory Commission. The objective of this experiment was to investigate the material relocation processes and relocation pathways in a dry BWR core following a severe nuclear reactor accident such as an unrecovered station blackout accident. The imposed test conditions (initial thermal state and the melt generation rates) simulated the conditions for the postulated accident scenario and the prototypic design of the lower core test section (in composition and in geometry) ensured that thermal masses ... continued below

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Medium: P; Size: 175 p.

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Gauntt, R.O. & Humphries, L.L. August 1, 1997.

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Description

This report documents the final results of the XR2-1 boiling water reactor (BWR) metallic melt relocation experiment, conducted at Sandia National Laboratories for the U.S. Nuclear Regulatory Commission. The objective of this experiment was to investigate the material relocation processes and relocation pathways in a dry BWR core following a severe nuclear reactor accident such as an unrecovered station blackout accident. The imposed test conditions (initial thermal state and the melt generation rates) simulated the conditions for the postulated accident scenario and the prototypic design of the lower core test section (in composition and in geometry) ensured that thermal masses and physical flow barriers were modeled adequately. The experiment has shown that, under dry core conditions, the metallic core materials that melt and drain from the upper core regions can drain from the core region entirely without formation of robust coherent blockages in the lower core. Temporary blockages that suspended pools of molten metal later melted, allowing the metals to continue draining downward. The test facility and instrumentation are described in detail. The test progression and results are presented and compared to MERIS code analyses. 6 refs., 55 figs., 4 tabs.

Physical Description

Medium: P; Size: 175 p.

Notes

INIS; OSTI as TI97008702

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  • Other Information: PBD: Aug 1997

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  • Other: TI97008702
  • Report No.: NUREG/CR--6527
  • Report No.: SAND--97-1039
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/531083 | External Link
  • Office of Scientific & Technical Information Report Number: 531083
  • Archival Resource Key: ark:/67531/metadc695456

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • August 1, 1997

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 2, 2016, 2:46 p.m.

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Gauntt, R.O. & Humphries, L.L. Final results of the XR2-1 BWR metallic melt relocation experiment, report, August 1, 1997; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc695456/: accessed November 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.