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Title: Stuck fuel rod capping sleeve

Abstract

A stuck fuel rod capping sleeve to be used during derodding of spent fuel assemblies if a fuel rod becomes stuck in a partially withdrawn position and, thus, has to be severed. The capping sleeve has an inner sleeve made of a lower work hardening highly ductile material (e.g., Inconel 600) and an outer sleeve made of a moderately ductile material (e.g., 304 stainless steel). The inner sleeve may be made of an epoxy filler. The capping sleeve is placed on a fuel rod which is then severed by using a bolt cutter device. Upon cutting, the capping sleeve deforms in such a manner as to prevent the gross release of radioactive fuel material

Inventors:
 [1];  [2];  [3]
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  1. Bethel Park, PA
  2. McKeesport, PA
  3. Upper St. Clair, PA
Issue Date:
Research Org.:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
OSTI Identifier:
866539
Patent Number(s):
4732730
Assignee:
United States of America as represented by United States (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
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DOE Contract Number:  
AC11-76PN00014
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
stuck; fuel; rod; capping; sleeve; derodding; spent; assemblies; partially; withdrawn; position; severed; inner; hardening; highly; ductile; material; inconel; 600; outer; moderately; 304; stainless; steel; epoxy; filler; placed; bolt; cutter; device; cutting; deforms; manner; prevent; gross; release; radioactive; capping sleeve; outer sleeve; inner sleeve; fuel assemblies; fuel material; stainless steel; spent fuel; fuel rod; radioactive fuel; rod capping; stuck fuel; withdrawn position; rod cap; active fuel; /376/220/976/

Citation Formats

Gorscak, Donald A, Maringo, John J, and Nilsen, Roy J. Stuck fuel rod capping sleeve. United States: N. p., 1988. Web.
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Gorscak, Donald A, Maringo, John J, & Nilsen, Roy J. Stuck fuel rod capping sleeve. United States.
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Gorscak, Donald A, Maringo, John J, and Nilsen, Roy J. Fri . "Stuck fuel rod capping sleeve". United States. https://www.osti.gov/servlets/purl/866539.
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@article{osti_866539,
title = {Stuck fuel rod capping sleeve},
author = {Gorscak, Donald A and Maringo, John J and Nilsen, Roy J},
abstractNote = {A stuck fuel rod capping sleeve to be used during derodding of spent fuel assemblies if a fuel rod becomes stuck in a partially withdrawn position and, thus, has to be severed. The capping sleeve has an inner sleeve made of a lower work hardening highly ductile material (e.g., Inconel 600) and an outer sleeve made of a moderately ductile material (e.g., 304 stainless steel). The inner sleeve may be made of an epoxy filler. The capping sleeve is placed on a fuel rod which is then severed by using a bolt cutter device. Upon cutting, the capping sleeve deforms in such a manner as to prevent the gross release of radioactive fuel material},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}
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