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Title: LIGHT WATER MODERATED NEUTRONIC REACTOR

Abstract

A uranium fuel reactor designed to utilize light water as a moderator is described. The reactor core is in a tank at the bottom of a substantially cylindrical cross-section pit, the core being supported by an apertured grid member and comprised of hexagonal tubes each containing a pluralily of fuel rods held in a geometrical arrangement between end caps of the tubes. The end caps are apertured to permit passage of the coolant water through the tubes and the fuel elements are aluminum clad to prevent corrosion. The tubes are hexagonally arranged in the center of the tank providing an amulus between the core and tank wall which is filled with water to serve as a reflector. In use, the entire pit and tank are filled with water in which is circulated during operation by coming in at the bottom of the tank, passing upwardly through the grid member and fuel tubes and carried off near the top of the pit, thereby picking up the heat generated by the fuel elements during the fission thereof. With this particular design the light water coolant can also be used as the moderator when the uranium is enriched by fissionable isotope to anmore » abundance of U/sup 235/ between 0.78% and 2%.« less

Inventors:
;
Issue Date:
OSTI Identifier:
4312360
Patent Number(s):
2806819
Assignee:
U.S. Atomic Energy Commission
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
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
NSA Number:
NSA-12-004628
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; ALUMINUM; CONFIGURATION; COOLANTS; CORROSION; FISSIONABLE MATERIALS; FUEL ELEMENTS; NEUTRONS; PATENT; QUANTITY RATIO; REACTOR CORE; REACTORS; REFLECTORS; RODS; TUBES; URANIUM 235; WATER MODERATOR

Citation Formats

Christy, R F, and Weinberg, A M. LIGHT WATER MODERATED NEUTRONIC REACTOR. United States: N. p., 1957. Web.
Christy, R F, & Weinberg, A M. LIGHT WATER MODERATED NEUTRONIC REACTOR. United States.
Christy, R F, and Weinberg, A M. Tue . "LIGHT WATER MODERATED NEUTRONIC REACTOR". United States.
@article{osti_4312360,
title = {LIGHT WATER MODERATED NEUTRONIC REACTOR},
author = {Christy, R F and Weinberg, A M},
abstractNote = {A uranium fuel reactor designed to utilize light water as a moderator is described. The reactor core is in a tank at the bottom of a substantially cylindrical cross-section pit, the core being supported by an apertured grid member and comprised of hexagonal tubes each containing a pluralily of fuel rods held in a geometrical arrangement between end caps of the tubes. The end caps are apertured to permit passage of the coolant water through the tubes and the fuel elements are aluminum clad to prevent corrosion. The tubes are hexagonally arranged in the center of the tank providing an amulus between the core and tank wall which is filled with water to serve as a reflector. In use, the entire pit and tank are filled with water in which is circulated during operation by coming in at the bottom of the tank, passing upwardly through the grid member and fuel tubes and carried off near the top of the pit, thereby picking up the heat generated by the fuel elements during the fission thereof. With this particular design the light water coolant can also be used as the moderator when the uranium is enriched by fissionable isotope to an abundance of U/sup 235/ between 0.78% and 2%.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1957},
month = {9}
}