Interactions of core debris with concrete: The current state of the art, research, and remaining issues

Conference · Fri Jan 01 04:00:00 EST 1988

OSTI ID:7010809

Powers, D A

Substantial progress has been made in the understanding of core debris interactions with concrete. Sophisticated models of these interactions have been developed based largely on tests of simple steels interacting with concrete. The paper describes additional tests and modeling in the areas of heat transfer, radionuclide release and combined core debris/concrete/coolant interactions needed to complete the understanding of core debris interactions with concrete for accident analysis. Major needs exist for tests involving oxide melts, metallic melts containing zirconium and metallic melts containing boron carbide. Radial heat transfer and the effects of water on core debris/concrete interactions are largely unstudied. Tests and modeling are needed to clarify issues of radionuclide release such as the effects of boron carbide, interfacial crusts, melt constituent activities, oxide phase oxygen potentials and vapor phase speciation.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7010809
• Report Number(s): SAND-88-0861C; CONF-880309-5; ON: DE88010832
• Country of Publication: United States
• Language: English

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