BE796113A - Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors - Google Patents

Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors

Info

Publication number
BE796113A
BE796113A BE128233A BE128233A BE796113A BE 796113 A BE796113 A BE 796113A BE 128233 A BE128233 A BE 128233A BE 128233 A BE128233 A BE 128233A BE 796113 A BE796113 A BE 796113A
Authority
BE
Belgium
Prior art keywords
esp
fuel rod
grids
rod assembly
nuclear fuel
Prior art date
Application number
BE128233A
Other languages
French (fr)
Inventor
J M Yellowlees
J-P Thiebaut
Original Assignee
Belgonucleaire Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Belgonucleaire Sa filed Critical Belgonucleaire Sa
Priority to BE128233A priority Critical patent/BE796113A/en
Publication of BE796113A publication Critical patent/BE796113A/en
Priority to BE136951A priority patent/BE806386R/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/34—Spacer grids
    • G21C3/344—Spacer grids formed of assembled tubular elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • 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
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

Each of the horizontal spacer grids of offset from a truly symmetrical position by a distance of ca. 1 mm., alternate grids from top of bottom of the assembly being offset in opposite directions so that the rods have a very slight vertical undulation. Esp. the grids are hexagonal meshed, each mesh having 3 symmetrical inner lugs of which 2 are in contact with the fuel rod under normal conditions. Due to the permanent sets, distortion due to heating etc. is along predetermined directions so simplifying tolerance calculations.
BE128233A 1973-02-22 1973-02-22 Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors BE796113A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE128233A BE796113A (en) 1973-02-22 1973-02-22 Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors
BE136951A BE806386R (en) 1973-02-22 1973-10-23 Nuclear reactor fuel assembly - with spacer gratings displaced radially in alternate directions relative to the fuel-rod bundle axis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE128233A BE796113A (en) 1973-02-22 1973-02-22 Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors

Publications (1)

Publication Number Publication Date
BE796113A true BE796113A (en) 1973-06-18

Family

ID=3841742

Family Applications (1)

Application Number Title Priority Date Filing Date
BE128233A BE796113A (en) 1973-02-22 1973-02-22 Nuclear fuel rod assembly - with offset spacer grids esp for fast neutron reactors

Country Status (1)

Country Link
BE (1) BE796113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1736996A1 (en) * 2005-04-04 2006-12-27 Westinghouse Electric Company LLC Nuclear fuel assembly with spacer grids and eccentric support of fuel rods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1736996A1 (en) * 2005-04-04 2006-12-27 Westinghouse Electric Company LLC Nuclear fuel assembly with spacer grids and eccentric support of fuel rods

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