Cooled water rod (LOCA conditions)

Details Cooled water rod (LOCA conditions) Cooled water rod (LOCA conditions)

1987-01-12

1988-07-05

Kyle, Deborah L.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Emergency core coolant systems

376371, 376444, 376447, G21C 1518

Patent

active

047553480

ABSTRACT:
An apparatus and process utilizing a large water rod of a fuel bundle in a boiling water reactor fuel assembly as a radiation heat sink during a loss of coolant accident. Core cooling spray is collected at the top end of the bundle's large water rod by a collector and distributed by a distributor to coat the inside wall surfaces of the water rod. In the case of a water rod which is not bottom vented, the water rod body is modified so as to separate the downward flow of liquid water from the upward flow of steam. During normal plant operation, the large water rod serves as a water-filled moderator tube to provide a more uniform power distribution across the fuel bundle.

REFERENCES:
patent: 3357891 (1967-12-01), Wadmark
patent: 3802995 (1974-04-01), Fritz et al.
patent: 4123327 (1978-10-01), Sugisaki et al.
patent: 4675154 (1987-06-01), Nelson et al.

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