Nuclear reactor fuel assembly and method of forming same

Details Nuclear reactor fuel assembly and method of forming same Nuclear reactor fuel assembly and method of forming same

1984-05-11

1987-01-20

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376267, 376445, 376447, 376451, 376456, G21C 332

Patent

active

046379150

ABSTRACT:
A nuclear fuel assembly, particularly advantageous for use in a pressurized water reactor, wherein each alternate fuel rod in the assembly is positioned with its fission gas plenum zone at the top of the assembly and the intervening alternate fuel rods are positioned with their fission gas plenum zones at the bottom of the assembly. All of the fuel rods are preferably axially coextensive. An axial blanket region may be formed by providing the fuel zone of each fuel rod with a small zone of natural or depleted uranium at a part of the fuel zone furthest from the fission gas plenum zone. A method of effectively lengthening the active length of a nuclear fuel assembly is also described.

REFERENCES:
patent: 3425908 (1969-02-01), Rouge et al.
patent: 3586603 (1972-06-01), Hines
patent: 3679545 (1972-07-01), Leirvik
patent: 4125433 (1978-11-01), Iljunin et al.
patent: 4130460 (1978-12-01), Iljunin

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