Operating method of boiling water reactor

Details Operating method of boiling water reactor Operating method of boiling water reactor

1983-09-06

1986-12-30

Brown, David H.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

376236, G21C 706

Patent

active

046328033

ABSTRACT:
In the operation of a boiling water reactor, when the core flow rate is decreased due to a trip of the circulating pump, the control rod pattern is suitably changed to avoid unnecessary scram of the control rods. The change of the control rod pattern is made by driving control rods which have been inserted to small depth deeper into a depth near 12/24 of the core height. In addition to this control rod operation, the control rods which have been inserted to large depth are withdrawn to a depth near 12/24 or, alternatively, the control rods which have not been inserted at all are inserted to the depth of about 12/24 of the core height.

REFERENCES:
patent: 3565760 (1971-02-01), Parkos et al.
patent: 4075059 (1978-02-01), Bruno et al.
patent: 4108720 (1978-08-01), Sato et al.
patent: 4129475 (1978-12-01), Spurgin et al.
patent: 4181569 (1980-01-01), Ingham
patent: 4285769 (1981-08-01), Specker et al.

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