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Title: Method of shielding a liquid-metal-cooled reactor

Abstract

The primary heat transport system of a nuclear reactor -- particularly for a liquid-metal-cooled fast-breeder reactor -- is shielded and protected from leakage by establishing and maintaining a bed of a powdered oxide closely and completely surrounding all components thereof by passing a gas upwardly therethrough at such a rate as to slightly expand the bed to the extent that the components of the system are able to expand without damage and yet the particles of the bed remain close enough so that the bed acts as a guard vessel for the system. Preferably the gas contains 1 to 10% oxygen and the gas is passed upwardly through the bed at such a rate that the lower portion of the bed is a fixed bed while the upper portion is a fluidized bed, the line of demarcation therebetween being high enough that the fixed bed portion of the bed serves as guard vessel for the system.

Inventors:
 [1]
  1. Mt. Lebanon, PA
Issue Date:
OSTI Identifier:
863139
Patent Number(s):
4102739
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
DOE Contract Number:  
E(11-1)-2395
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; shielding; liquid-metal-cooled; reactor; primary; heat; transport; nuclear; particularly; fast-breeder; shielded; protected; leakage; establishing; maintaining; bed; powdered; oxide; closely; completely; surrounding; components; passing; gas; upwardly; therethrough; rate; slightly; expand; extent; damage; particles; remain; close; guard; vessel; preferably; contains; 10; oxygen; passed; portion; fixed; upper; fluidized; line; demarcation; therebetween; serves; liquid-metal-cooled fast-breeder; breeder reactor; fluidized bed; nuclear reactor; upper portion; fixed bed; guard vessel; primary heat; heat transport; gas contains; fast-breeder reactor; gas upwardly; cooled fast; metal-cooled reactor; metal-cooled fast; cooled reactor; liquid-metal-cooled reactor; liquid-metal-cooled fast; /376/976/

Citation Formats

Sayre, Robert K. Method of shielding a liquid-metal-cooled reactor. United States: N. p., 1978. Web.
Sayre, Robert K. Method of shielding a liquid-metal-cooled reactor. United States.
Sayre, Robert K. Sun . "Method of shielding a liquid-metal-cooled reactor". United States. https://www.osti.gov/servlets/purl/863139.
@article{osti_863139,
title = {Method of shielding a liquid-metal-cooled reactor},
author = {Sayre, Robert K},
abstractNote = {The primary heat transport system of a nuclear reactor -- particularly for a liquid-metal-cooled fast-breeder reactor -- is shielded and protected from leakage by establishing and maintaining a bed of a powdered oxide closely and completely surrounding all components thereof by passing a gas upwardly therethrough at such a rate as to slightly expand the bed to the extent that the components of the system are able to expand without damage and yet the particles of the bed remain close enough so that the bed acts as a guard vessel for the system. Preferably the gas contains 1 to 10% oxygen and the gas is passed upwardly through the bed at such a rate that the lower portion of the bed is a fixed bed while the upper portion is a fluidized bed, the line of demarcation therebetween being high enough that the fixed bed portion of the bed serves as guard vessel for the system.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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