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Title: Emergency core cooling system

Abstract

A liquid metal cooled fast breeder reactor provided with an emergency core cooling system includes a reactor vessel which contains a reactor core comprising an array of fuel assemblies and a plurality of blanket assemblies. The reactor core is immersed in a pool of liquid metal coolant. The reactor also includes a primary coolant system comprising a pump and conduits for circulating liquid metal coolant to the reactor core and through the fuel and blanket assemblies of the core. A converging-diverging venturi nozzle with an intermediate throat section is provided in between the assemblies and the pump. The intermediate throat section of the nozzle is provided with at least one opening which is in fluid communication with the pool of liquid sodium. In normal operation, coolant flows from the pump through the nozzle to the assemblies with very little fluid flowing through the opening in the throat. However, when the pump is not running, residual heat in the core causes fluid from the pool to flow through the opening in the throat of the nozzle and outwardly through the nozzle to the assemblies, thus providing a means of removing decay heat.

Inventors:
 [1];  [2]
  1. (Sherman Oaks, CA)
  2. (Westlake Village, CA)
Publication Date:
Research Org.:
ROCKWELL INTERNATIONAL CORP
OSTI Identifier:
864461
Patent Number(s):
US 4367194
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
AC14-79ET37109
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
emergency; core; cooling; liquid; metal; cooled; fast; breeder; reactor; provided; vessel; contains; comprising; array; fuel; assemblies; plurality; blanket; immersed; pool; coolant; primary; pump; conduits; circulating; converging-diverging; venturi; nozzle; intermediate; throat; section; fluid; communication; sodium; normal; operation; flows; flowing; running; residual; heat; causes; flow; outwardly; providing; means; removing; decay; venturi nozzle; coolant flows; throat section; decay heat; breeder reactor; fuel assemblies; fast breeder; normal operation; reactor vessel; liquid metal; reactor core; fluid flow; liquid sodium; coolant flow; fluid communication; metal cooled; residual heat; primary coolant; fluid flowing; metal coolant; blanket assemblies; emergency core; core cooling; cooled fast; /376/976/

Citation Formats

Schenewerk, William E., and Glasgow, Lyle E. Emergency core cooling system. United States: N. p., 1983. Web.
Schenewerk, William E., & Glasgow, Lyle E. Emergency core cooling system. United States.
Schenewerk, William E., and Glasgow, Lyle E. Sat . "Emergency core cooling system". United States. https://www.osti.gov/servlets/purl/864461.
@article{osti_864461,
title = {Emergency core cooling system},
author = {Schenewerk, William E. and Glasgow, Lyle E.},
abstractNote = {A liquid metal cooled fast breeder reactor provided with an emergency core cooling system includes a reactor vessel which contains a reactor core comprising an array of fuel assemblies and a plurality of blanket assemblies. The reactor core is immersed in a pool of liquid metal coolant. The reactor also includes a primary coolant system comprising a pump and conduits for circulating liquid metal coolant to the reactor core and through the fuel and blanket assemblies of the core. A converging-diverging venturi nozzle with an intermediate throat section is provided in between the assemblies and the pump. The intermediate throat section of the nozzle is provided with at least one opening which is in fluid communication with the pool of liquid sodium. In normal operation, coolant flows from the pump through the nozzle to the assemblies with very little fluid flowing through the opening in the throat. However, when the pump is not running, residual heat in the core causes fluid from the pool to flow through the opening in the throat of the nozzle and outwardly through the nozzle to the assemblies, thus providing a means of removing decay heat.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1983},
month = {Sat Jan 01 00:00:00 EST 1983}
}

Patent:

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