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BWR fuel assembly mini-bundle having interior fuel rods of reduced diameter

Patent ·
OSTI ID:5961292
A mini-bundle of fuel rods is described for use in each of several separate compartments of a BWR fuel assembly, the compartments being formed by an outer hollow tubular flow channel for directing the flow of coolant/moderator fluid through the fuel assembly and a hollow water cross extending through the channel, attached so as to provide a central hollow channel for flow of coolant/moderator fluid through the fuel assembly and to divide the outer channel into the separate compartments. The bundle consists of an interior array of fuel rods, each being of a predetermined diameter size; and a peripheral array of fuel rods, each being of a second diameter greater than the first diameter size.
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA
Patent Number(s):
US 4818478
OSTI ID:
5961292
Country of Publication:
United States
Language:
English

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Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
BWR TYPE REACTORS
DESIGN
DIMENSIONS
FUEL ASSEMBLIES
FUEL ELEMENT CLUSTERS
FUEL ELEMENTS
FUEL RODS
REACTOR COMPONENTS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS