Induced nuclear reactions: processes – systems – and elements – Fuel component structure – Plural fuel segments or elements
Patent
1995-11-07
1997-09-16
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Fuel component structure
Plural fuel segments or elements
G21C 3322
Patent
active
056687281
ABSTRACT:
A deflector is disposed in a steam vent region above the upper ends of part-length fuel rods to deflect upwardly flowing liquid laterally outwardly into the interstices of the full-length fuel rods adjacent the steam vent region. The deflector is supported by a spacer or from the upper tie plate and can be removed from the fuel bundle for access to the part-length fuel rods. The deflector may comprise a flat plate, an inverted pyramid, an inverted cone, a multi-sided pyramidal configuration or a swirl device wherein the horizontally projected area of the deflector is substantially coextensive with the horizontal cross-sectional area of the steam vent area. In this manner, a higher density liquid is provided in the interstices of the full-length rods while the lower density steam flows into the steam vent volume for flow upwardly out of the fuel bundle.
REFERENCES:
patent: 3844888 (1974-10-01), Calvin
patent: 5017332 (1991-05-01), Dix et al.
patent: 5091146 (1992-02-01), Dix
patent: 5416812 (1995-05-01), Matzner
patent: 5491733 (1996-02-01), Patterson et al.
Dix Gary E.
Matzner Bruce
General Electric Company
Wasil Daniel D.
LandOfFree
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