Thermal behavior of molten corium during TMI-2 core relocation event

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During the TMI-2 accident, a pool of molten corium formed in the central region of the core and was contained by solidified crusts. Failure of the crust surrounding the molten material, at approximately 224 min, resulted in a relocation of an estimated 20-25 tons of molten corium through peripheral fuel assemblies in the east side of the vessel, as well as through the core barrel assembly (CBA) at the periphery of the core. This paper presents the results of an analyses carried out to investigate the thermal interactions of molten corium with the CBA structures during the relocation event. The ... continued below

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Pages: 5

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Anderson, J.L. & Sienicki, J.J. January 1, 1988.

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Description

During the TMI-2 accident, a pool of molten corium formed in the central region of the core and was contained by solidified crusts. Failure of the crust surrounding the molten material, at approximately 224 min, resulted in a relocation of an estimated 20-25 tons of molten corium through peripheral fuel assemblies in the east side of the vessel, as well as through the core barrel assembly (CBA) at the periphery of the core. This paper presents the results of an analyses carried out to investigate the thermal interactions of molten corium with the CBA structures during the relocation event. The principal objectives of the analyses are: (a) to assess the potential for relocation to take place through the CBA versus the flow of molten core material directly downward through the core via the fuel assemblies; and (b) to understand the distribution of prior molten corium observed during vessel defueling examinations. 5 refs., 1 fig.

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Pages: 5

Notes

NTIS, PC A02/MF A01 - OSTI; 1.

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  • Joint meeting of the European Nuclear Society and the American Nuclear Society, Washington, DC, USA, 30 Oct 1988

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  • Other: DE89007499
  • Report No.: CONF-881011-38
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 6161525
  • Archival Resource Key: ark:/67531/metadc1108828

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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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Creation Date

  • January 1, 1988

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • March 26, 2018, 12:45 p.m.

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Anderson, J.L. & Sienicki, J.J. Thermal behavior of molten corium during TMI-2 core relocation event, article, January 1, 1988; United States. (digital.library.unt.edu/ark:/67531/metadc1108828/: accessed June 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.