Controlling coolant flow to nuclear fuel assemblies

Details Controlling coolant flow to nuclear fuel assemblies Controlling coolant flow to nuclear fuel assemblies

1989-03-22

1991-02-19

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376451, G21C 332

Patent

active

049942344

ABSTRACT:
In a BWR- or PWR-type nuclear reactor, the fuel rods in the fuel assembly are cooled by a coolant flow which is pumped through the fuel core. Depending on the degree of burnup of the fuel rods, the coolant flow to the fuel assemblies may need to be changed for the cooling to be matched to local need. To control coolant flow on the basis of the degree of burnup of the fuel rods, the irradiation growth of elongated elements in the fuel assembly has been utilized.

REFERENCES:
patent: 3143126 (1964-08-01), Terry
patent: 4684501 (1987-08-01), Lui

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