Retrofittable nuclear reactor core catcher
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United States of America Patent
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Apr 10, 1984
Grant Date -
N/A
app pub date -
Dec 1, 1980
filing date -
Dec 1, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A passive 'core catcher' is provided for preventing the escape of radiation in the unlikely event of a major failure of a nuclear reactor by melt-down of the core. The 'core-catcher' structure includes a narrow vertically downwardly extending isolation tube, and aligned narrow heat-exchange structure forming a chilled wall crucible in which the molten uranium oxide forms a container for itself including a 'frozen' or solid layer of uranium oxide adjacent the heat exchanger wall. A passive cooling system may include a water tower adjacent the above-ground reactor structure, which dissipates heat from the core-catcher heat exchanger, and from within the above-ground reactor structure by a second local heat exchanger.
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