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Title: Nuclear reactor

Abstract

A nuclear reactor, particularly a liquid-metal breeder reactor, whose upper internals include outlet modules for channeling the liquid-metal coolant from selected areas of the outlet of the core vertically to the outlet plenum. The modules are composed of a highly-refractory, high corrosion-resistant alloy, for example, INCONEL-718. Each module is disposed to confine and channel generally vertically the coolant emitted from a subplurality of core-component assemblies. Each module has a grid with openings, each opening disposed to receive the coolant from an assembly of the subplurality. The grid in addition serves as a holdown for the assemblies of the corresponding subplurality preventing their excessive ejection upwardly from the core. In the region directly over the core the outlet modules are of such peripheral form that they nest forming a continuum over the core-component assemblies whose outlet coolant they confine. Each subassembly includes a chimney which confines the coolant emitted by its corresponding subassemblies to generally vertical flow between the outlet of the core and the outlet plenum. Each subplurality of assemblies whose emitted coolant is confined by an outlet module includes assemblies which emit lower-temperature coolant, for example, a control-rod assembly, or fertile assemblies, and assemblies which emit coolant of substantiallymore » higher temperature, for example, fuel-rod assemblies. The coolants of different temperatures are mixed in the chimneys reducing the effect of stripping (hot-cold temperature fluctuations) on the remainder of the upper internals which are composed typically of AISI-304 or AISI-316 stainless steel.« less

Inventors:
 [1];  [2];  [3]
  1. Greensburg, PA
  2. New Stanton, PA
  3. Herminie, PA
Publication Date:
Research Org.:
Westinghouse Electric Corp., Madison, Pa. (USA)
OSTI Identifier:
862929
Patent Number(s):
US 4050985
Assignee:
Westinghouse Electric Corporation (Pittsburgh, PA)
DOE Contract Number:  
AT(11-1)-2395
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; particularly; liquid-metal; breeder; upper; internals; outlet; modules; channeling; coolant; selected; core; vertically; plenum; composed; highly-refractory; corrosion-resistant; alloy; example; inconel-718; module; disposed; confine; channel; emitted; subplurality; core-component; assemblies; grid; openings; receive; assembly; addition; serves; holdown; corresponding; preventing; excessive; ejection; upwardly; region; directly; peripheral; form; nest; forming; continuum; subassembly; chimney; confines; subassemblies; vertical; flow; confined; emit; lower-temperature; control-rod; fertile; substantially; temperature; fuel-rod; coolants; temperatures; mixed; chimneys; reducing; effect; stripping; hot-cold; fluctuations; remainder; typically; aisi-304; aisi-316; stainless; steel; core-component assemblies; rod assembly; breeder reactor; nuclear reactor; stainless steel; metal coolant; upper internals; rod assemblies; temperature fluctuations; cold temperature; outlet plenum; outlet coolant; vertical flow; fuel-rod assemblies; liquid-metal breeder; /376/976/

Citation Formats

Yant, Howard W, Stinebiser, Karl W, and Anzur, Gregory C. Nuclear reactor. United States: N. p., 1977. Web.
Yant, Howard W, Stinebiser, Karl W, & Anzur, Gregory C. Nuclear reactor. United States.
Yant, Howard W, Stinebiser, Karl W, and Anzur, Gregory C. 1977. "Nuclear reactor". United States. https://www.osti.gov/servlets/purl/862929.
@article{osti_862929,
title = {Nuclear reactor},
author = {Yant, Howard W and Stinebiser, Karl W and Anzur, Gregory C},
abstractNote = {A nuclear reactor, particularly a liquid-metal breeder reactor, whose upper internals include outlet modules for channeling the liquid-metal coolant from selected areas of the outlet of the core vertically to the outlet plenum. The modules are composed of a highly-refractory, high corrosion-resistant alloy, for example, INCONEL-718. Each module is disposed to confine and channel generally vertically the coolant emitted from a subplurality of core-component assemblies. Each module has a grid with openings, each opening disposed to receive the coolant from an assembly of the subplurality. The grid in addition serves as a holdown for the assemblies of the corresponding subplurality preventing their excessive ejection upwardly from the core. In the region directly over the core the outlet modules are of such peripheral form that they nest forming a continuum over the core-component assemblies whose outlet coolant they confine. Each subassembly includes a chimney which confines the coolant emitted by its corresponding subassemblies to generally vertical flow between the outlet of the core and the outlet plenum. Each subplurality of assemblies whose emitted coolant is confined by an outlet module includes assemblies which emit lower-temperature coolant, for example, a control-rod assembly, or fertile assemblies, and assemblies which emit coolant of substantially higher temperature, for example, fuel-rod assemblies. The coolants of different temperatures are mixed in the chimneys reducing the effect of stripping (hot-cold temperature fluctuations) on the remainder of the upper internals which are composed typically of AISI-304 or AISI-316 stainless steel.},
doi = {},
url = {https://www.osti.gov/biblio/862929}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1977},
month = {Sat Jan 01 00:00:00 EST 1977}
}