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Transient debris freezing and potential wall melting during a severe reactivity initiated accident experiment

Journal Article · · Nucl. Technol.; (United States)
OSTI ID:5273876

It is important to light water reactor (LWR) safety analysis to understand the transient freezing of molten core debris on cold structures following a hypothetical core meltdown accident. The purpose of this paper is to (a) present the results of a severe reactivity initiated accident (RIA) in-pile experiment with regard to molten debris distribution and freezing following test fuel rod failure, (b) analyze the transient freezing of molten debris (primarily a mixture of UO/sub 2/ fuel and Zircaloy cladding) deposited on the inner surface of the test shroud wall upon rod failure, and (c) assess the potential for wall melting upon being contacted by the molten debris. 26 refs.

Research Organization:
Edgerton, Germeshausen and Grier Inc, Idaho Falls, Idaho, USA
OSTI ID:
5273876
Journal Information:
Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 53:3; ISSN NUTYB
Country of Publication:
United States
Language:
English