Fuel bundle with adjustable flow and reactivity

Details Fuel bundle with adjustable flow and reactivity Fuel bundle with adjustable flow and reactivity

1996-03-22

1997-01-28

Jordan, Charles T.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376439, 376423, 376420, 376424, 376443, 376444, 376456, 376434, 376446, G21G 332

Patent

active

055984509

ABSTRACT:
In a fuel bundle for a boiling water nuclear reactor comprising a plurality of fuel rods (20) secured within an array and extending between upper and lower tie plates (24, 22), and including at least one additional partial length fuel rod (20') extending from said lower tie plate (22) but terminating short of said upper tie plate (24), an improvement in the form of a removable extension rod (32) secured to said at least one additional fuel rod (20') and extending substantially to said upper tie plate (24). The removable extension rod (32) also permits variance in the reactivity of the partial length fuel rod (20') particularly in the two phase region of the bundle (10).

REFERENCES:
patent: 4432934 (1984-02-01), Gjertsen et al.
patent: 4664882 (1987-03-01), Doshi
patent: 4728487 (1988-03-01), Cooney et al.
patent: 5017332 (1991-05-01), Dix et al.
patent: 5112570 (1992-05-01), Dix et al.
patent: 5345485 (1994-09-01), Patterson et al.
patent: 5375153 (1994-12-01), Patterson et al.
patent: 5384815 (1995-01-01), Patterson et al.

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