Reactor cooling system for boiling water reactors

Details Reactor cooling system for boiling water reactors Reactor cooling system for boiling water reactors

1993-04-28

1994-09-20

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Reactor protection or damage prevention

Emergency core coolant systems

G21C 1518

Patent

active

053496167

ABSTRACT:
A reactor cooling system for boiling water reactors comprises a pressure vessel containing a core of a boiling water reactor, a static core injection system including a first water source installed at a position higher than the pressure vessel and a first core injection line communicating the first water source with the pressure vessel, and having a capacity not less than 100% of the capacity necessary to maintain submergence of the core in the pressure vessel, and a plurality of dynamic core injection systems each including a second water source, a second core injection line communicating the second water source with the pressure vessel, and a pump provided in the second core injection line, and each having a capacity not less than 50 % of the capacity necessary to maintain submergence of the core in the pressure vessel. Even when the plurality of dynamic core injection systems fail to inject water in a satisfactory manner, the static core injection system having capacity not less than 100% of the capacity necessary to maintain the submergence of the core is operated to start water injection, whereby the submergence of the core can be surely achieved.

REFERENCES:
patent: 5011652 (1991-04-01), Tominaga et al.
Modifying Reactor Installation of Nuclear Power Plant at Kashiwazaki Kariba, Japan, pp. 8-5-1 to 8-5-41 (no date).

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