Fuel assembly

Details Fuel assembly Fuel assembly

1984-10-03

1987-09-22

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Fuel component structure

Plural fuel segments or elements

376267, 376419, 376428, 376447, G21C 332

Patent

active

046954252

ABSTRACT:
A fuel assembly having a plurality of fuel rods arranged in a lattice state and being charged into a core of a nuclear reactor using light water as a coolant, which comprises the fuel rods consisting of a first group of fuel rods and a second group of fuel rods, an average concentration of U.sup.236 in the first group being lower than an average concentration of U.sup.236 in the second group, and the first group and the second group being arranged unevenly in the fuel assembly, preferably, a fuel assembly wherein the first group is arranged at the periphery of the fuel assembly, and the second group being arranged at positions other than the periphery, has a low reactivity penalty due to U.sup.236 and can reduce the requirements for natural uranium.

REFERENCES:
patent: 3503848 (1970-03-01), Ransohoff
patent: 3745069 (1973-07-01), Sofer
patent: 4018697 (1977-04-01), Smith
patent: 4229258 (1980-10-01), Takeda
patent: 4251321 (1981-02-01), Crowther

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