Nuclear reactors

Details Nuclear reactors Nuclear reactors

1973-08-06

1976-07-27

Behrend, Harvey E.

176 61, 176 78, 176 83, G21C 304

Patent

active

039716988

ABSTRACT:
A nuclear reactor having a core structure comprising a plurality of closely packed parallel fuel element assemblies. Each assembly comprises a cluster of parallel fuel pins enclosed by a tubular casing through which coolant flow is directed. There is provided barrier means extending longitudinally through the cluster to define inner and outer coolant flow ducts each containing fuel pins. Gagging means for the ducts provides that the temperature of the coolant leaving the outer duct is lower than that leaving the inner duct so that the tubular casing is maintained relatively cool thereby to reduce irradiation growth and consequent bowing of the casing. The fuel pins in the outer duct may be of breeder material further to reduce the operating temperature of the casing.

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patent: 3104219 (1963-09-01), Sulzer
patent: 3121666 (1964-02-01), Wheelock
patent: 3309280 (1967-03-01), Balog
patent: 3317399 (1967-05-01), Winders
patent: 3318777 (1967-05-01), Keruenoael et al.
patent: 3365372 (1968-01-01), Swanson et al.
patent: 3383287 (1968-05-01), Jackson
patent: 3386885 (1968-06-01), Wright

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