ADVANCED GRAY ROD CONTROL ASSEMBLY

ADVANCED GRAY ROD CONTROL ASSEMBLY

PROBLEM TO BE SOLVED: To provide an advanced gray rod control assembly (GRCA) for a nuclear reactor. SOLUTION: By having the GRCA provide controlled insertion of gray rod assemblies into the reactor for controlling output rate from the reactor, reactivity control at full output is made available. Ea...

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Bibliographische Detailangaben
Hauptverfasser: LONG CARROLL J, GOLDENFIELD MARK, HONE MICHAEL J, CARLSON WILLIAM R, POMIRLEANU RADU O, CONNER MICHAEL E, DRUDY KEITH J, PARKINSON JEROD
Format: Patent
Sprache:eng
Schlagworte:
GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION
TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an advanced gray rod control assembly (GRCA) for a nuclear reactor. SOLUTION: By having the GRCA provide controlled insertion of gray rod assemblies into the reactor for controlling output rate from the reactor, reactivity control at full output is made available. Each gray rod assembly includes an elongated tubular member and a primary neutron absorber disposed in the tubular member. The neutron absorber comprises an absorbing material, preferably tungsten, having a 2,200 m/s neutron absorption microscopic capture cross section of 10 to 30 barns. An internal support tube is interposed between the primary absorber and the tubular member as a secondary absorber to enhance the neutron absorption, absorber depletion, assembly weight, and assembly heat transfer characteristics. COPYRIGHT: (C)2009,JPO&INPIT