Effect of thermal stress on oxide crusts

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7279264

Ostensen, R. W.

In the transition phase in LMFBR hypothetical accidents, the existence of an insulating crust of frozen fuel between molten fuel and cold structure is of key importance. The disruption of such a crust for fuel flowing through the axial blanket regions can lead to rapid freezing and subsequent blockage formation. In a boiling pool of molten fuel and steel, the presence of the crust may be necessary in order to reduce the convective heat transfer rate and allow a subcritical boilup. This paper describes the effect of thermal stress on such a crust and points out that such crusts may be far weaker than previously believed.

• Research Organization: Sandia Labs., Albuquerque, N.Mex. (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 7279264
• Report Number(s): SAND-77-1017C; CONF-771109-9
• Country of Publication: United States
• Language: English

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ACCIDENTS
BREEDER REACTORS
DIMENSIONS
ENERGY TRANSFER
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
HEAT TRANSFER
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REACTORS
STRESSES
TEMPERATURE DEPENDENCE
THERMAL STRESSES
THICKNESS