Radially channeled guide post for a nuclear fuel assembly

Details Radially channeled guide post for a nuclear fuel assembly Radially channeled guide post for a nuclear fuel assembly

1978-12-26

1981-05-05

Walsh, Donald P.

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Fluidic oscillator

176 35, 176 81, 239552, G21C 330, G21C 708

Patent

active

042657083

ABSTRACT:
An improved nuclear reactor fuel assembly of a type having a control rod guide tube through which a control rod may be reciprocated from above and through which a coolant flow is maintained from below wherein the improvement comprises the guide tube having a flow restriction at its upper end and having a plurality of flow bypass channels spaced around the tube circumference below the restriction for directing coolant flow generally radially outward from the guide tube.

REFERENCES:
patent: 3432390 (1969-03-01), Dean
patent: 3619367 (1971-11-01), Gumuchian
patent: 3770583 (1973-11-01), Klumb
patent: 3861999 (1975-01-01), Zmola
Fricke, Nuclear Science & Engineering: 48, 87-102, (1972).
Miller et al., "Theoretical Analysis of Flow-Induced Vibration of a Blade, etc.", ASME, 11/27/66.

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