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Title: Identification of failed fuel element

Abstract

A passive fission product gas trap is provided in the upper portion of each fuel subassembly in a nuclear reactor. The gas trap consists of an inverted funnel of less diameter than the subassembly having a valve at the apex thereof. An actuating rod extends upwardly from the valve through the subassembly to a point where it can be contacted by the fuel handling mechanism for the reactor. Interrogation of the subassembly for the presence of fission products is accomplished by lowering the fuel handling machine onto the subassembly to press down on the actuating rod and open the valve.

Inventors:
 [1];  [2]
  1. Idaho Falls, ID
  2. Hinsdale, IL
Issue Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
OSTI Identifier:
862578
Patent Number(s):
3964964
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:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
identification; failed; fuel; element; passive; fission; product; gas; trap; provided; upper; portion; subassembly; nuclear; reactor; consists; inverted; funnel; diameter; valve; apex; actuating; rod; extends; upwardly; contacted; handling; mechanism; interrogation; presence; products; accomplished; lowering; machine; press; fuel handling; fuel subassembly; fission product; product gas; fission products; fuel element; nuclear reactor; upper portion; failed fuel; extends upwardly; trap consists; gas trap; /376/976/

Citation Formats

Fryer, Richard M, and Matlock, Robert G. Identification of failed fuel element. United States: N. p., 1976. Web.
Fryer, Richard M, & Matlock, Robert G. Identification of failed fuel element. United States.
Fryer, Richard M, and Matlock, Robert G. Tue . "Identification of failed fuel element". United States. https://www.osti.gov/servlets/purl/862578.
@article{osti_862578,
title = {Identification of failed fuel element},
author = {Fryer, Richard M and Matlock, Robert G},
abstractNote = {A passive fission product gas trap is provided in the upper portion of each fuel subassembly in a nuclear reactor. The gas trap consists of an inverted funnel of less diameter than the subassembly having a valve at the apex thereof. An actuating rod extends upwardly from the valve through the subassembly to a point where it can be contacted by the fuel handling mechanism for the reactor. Interrogation of the subassembly for the presence of fission products is accomplished by lowering the fuel handling machine onto the subassembly to press down on the actuating rod and open the valve.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {6}
}

Patent:

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