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Title: Improved nuclear fuel assembly grid spacer

Abstract

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 of 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.

Inventors:
 [1];  [2]
  1. San Jose, CA
  2. Los Gatos, CA
Issue Date:
OSTI Identifier:
862827
Patent Number(s):
4021300
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
AT(04-3)-893
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
improved; nuclear; fuel; assembly; grid; spacer; method; retaining; basic; rod; support; elements; position; containment; channel; improvement; involves; attachment; grids; hexagonal; forming; element; structure; provides; design; insensitive; potential; distortion; ballooning; fluence; levels; addition; eliminates; associated; component; fabrication; rod support; improved method; nuclear fuel; fuel assembly; fuel rod; improved fuel; support elements; support element; grid structure; improved nuclear; improvement involves; grid spacer; assembly grid; /376/976/

Citation Formats

Marshall, John, and Kaplan, Samuel. Improved nuclear fuel assembly grid spacer. United States: N. p., 1977. Web.
Marshall, John, & Kaplan, Samuel. Improved nuclear fuel assembly grid spacer. United States.
Marshall, John, and Kaplan, Samuel. Sat . "Improved nuclear fuel assembly grid spacer". United States. https://www.osti.gov/servlets/purl/862827.
@article{osti_862827,
title = {Improved nuclear fuel assembly grid spacer},
author = {Marshall, John and Kaplan, Samuel},
abstractNote = {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 of 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

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