Improved nuclear fuel assembly grid spacer. [LMFBR]

Patent · Tue May 03 00:00:00 EDT 1977

OSTI ID:5369801

Marshall, J; Kaplan, S

Disclosed is an improved fuel assembly grid spacer and method of retaining the basic fuel rod support elements in position within the fuel assembly containment channel. The improvement involves attachment of the grids to the hexagonal channel and forming the basic fuel rod support element into a grid structure, which provides a design which is insensitive to potential channel distortion (ballooning) at high fluence levels. In addition the improved method eliminates problems associated with component fabrication and assembly.

• Assignee: Energy Research and Development Administration
• Patent Number(s): US 4021300
• Application Number: TRN: 78-001478
• OSTI ID: 5369801
• Resource Relation: Patent File Date: Filed date 23 May 1975; Other Information: PAT-APPL-580,498
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
FUEL ASSEMBLIES
SPACERS
LMFBR TYPE REACTORS
DESIGN
BREEDER REACTORS
EPITHERMAL REACTORS
FAST REACTORS
FBR TYPE REACTORS
LIQUID METAL COOLED REACTORS
REACTORS
210500* - Power Reactors
Breeding