Freezing and remelting of radioactive materials on cold, vertical pins

Technical Report · Mon Jul 01 00:00:00 EDT 1957

DOI:https://doi.org/10.2172/4296651· OSTI ID:4296651

Elrod Jr., H. G. ^[1]

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1. Nuclear Development Corp. of America, White Plains, NY (United States)

If, in some unforeseeable manner, the APDA reactor should instantaneously lose all its coolant, a slow meltdown would occur. Molten fuel from the core would freeze upon encountering the colder pins of the lower axial blanket. A description of the klnetics of such a freezing process is presented. Generalized curves are presented, permitting rapid estimates of the time and extent of freezlng for various pin configurations and rates of decay heat generation. For the blanket design described in APDA-115, it is estimated that bridging between adfacent pins would occur in no more than 0.17 sec and complete plugging in no more than 0.57 sec. (auth)

• Research Organization: Nuclear Development Corp. of America, White Plains, NY (United States)
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-008286
• OSTI ID: 4296651
• Report Number(s): NDA-14-181
• Resource Relation: Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
30 DIRECT ENERGY CONVERSION
ACCIDENTS
APDA
BLANKETS
CONFIGURATION
COOLANT LOOPS
COOLANTS
COOLING
DIAGRAMS
FAILURES
FUEL ELEMENTS
HEAT TRANSFER
HEATING
HIGH TEMPERATURE
LIQUEFYING
LIQUID FLOW
LIQUID METAL FUEL
LOSSES
LOW TEMPERATURE
MATERIALS TESTING
MELTING
PLANNING
POWER PLANTS
REACTOR CORE
REACTORS
RODS
SOLIDIFICATION