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Title: Thermal barrier and support for nuclear reactor fuel core

Abstract

A thermal barrier/core support for the fuel core of a nuclear reactor having a metallic cylinder secured to the reactor vessel liner and surrounded by fibrous insulation material. A top cap is secured to the upper end of the metallic cylinder that locates and orients a cover block and post seat. Under normal operating conditions, the metallic cylinder supports the entire load exerted by its associated fuel core post. Disposed within the metallic cylinder is a column of ceramic material, the height of which is less than that of the metallic cylinder, and thus is not normally load bearing. In the event of a temperature excursion beyond the design limits of the metallic cylinder and resulting in deformation of the cylinder, the ceramic column will abut the top cap to support the fuel core post.

Inventors:
 [1];  [2];  [3]
  1. (Del Mar, CA)
  2. Del Mar, CA
  3. San Diego, CA
Issue Date:
Research Org.:
GA TECHNOLOGIES INC
OSTI Identifier:
866277
Patent Number(s):
4673548
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
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
DOE Contract Number:  
AT03-76SF70046
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
thermal; barrier; support; nuclear; reactor; fuel; core; metallic; cylinder; secured; vessel; liner; surrounded; fibrous; insulation; material; top; cap; upper; locates; orients; cover; block; post; seat; normal; operating; conditions; supports; entire; load; exerted; associated; disposed; column; ceramic; height; normally; bearing; event; temperature; excursion; design; limits; resulting; deformation; abut; vessel liner; load bearing; ceramic material; operating conditions; thermal barrier; reactor vessel; nuclear reactor; reactor fuel; fuel core; operating condition; core support; normal operating; temperature excursion; associated fuel; insulation material; fibrous insulation; ceramic mater; /376/976/

Citation Formats

Betts, Jr., William S., Pickering, J Larry, and Black, William E. Thermal barrier and support for nuclear reactor fuel core. United States: N. p., 1987. Web.
Betts, Jr., William S., Pickering, J Larry, & Black, William E. Thermal barrier and support for nuclear reactor fuel core. United States.
Betts, Jr., William S., Pickering, J Larry, and Black, William E. Thu . "Thermal barrier and support for nuclear reactor fuel core". United States. https://www.osti.gov/servlets/purl/866277.
@article{osti_866277,
title = {Thermal barrier and support for nuclear reactor fuel core},
author = {Betts, Jr., William S. and Pickering, J Larry and Black, William E},
abstractNote = {A thermal barrier/core support for the fuel core of a nuclear reactor having a metallic cylinder secured to the reactor vessel liner and surrounded by fibrous insulation material. A top cap is secured to the upper end of the metallic cylinder that locates and orients a cover block and post seat. Under normal operating conditions, the metallic cylinder supports the entire load exerted by its associated fuel core post. Disposed within the metallic cylinder is a column of ceramic material, the height of which is less than that of the metallic cylinder, and thus is not normally load bearing. In the event of a temperature excursion beyond the design limits of the metallic cylinder and resulting in deformation of the cylinder, the ceramic column will abut the top cap to support the fuel core post.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {1}
}

Patent:

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