FR2412143A1 - Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins - Google Patents

Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins

Info

Publication number
FR2412143A1
FR2412143A1 FR7835535A FR7835535A FR2412143A1 FR 2412143 A1 FR2412143 A1 FR 2412143A1 FR 7835535 A FR7835535 A FR 7835535A FR 7835535 A FR7835535 A FR 7835535A FR 2412143 A1 FR2412143 A1 FR 2412143A1
Authority
FR
France
Prior art keywords
pins
series
fuel
grids
nuclear
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7835535A
Other languages
French (fr)
Other versions
FR2412143B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Publication of FR2412143A1 publication Critical patent/FR2412143A1/en
Application granted granted Critical
Publication of FR2412143B1 publication Critical patent/FR2412143B1/fr
Granted legal-status Critical Current

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
    • G21C3/348—Spacer grids formed of assembled non-intersecting strips
    • 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)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)

Abstract

A nuclear fuel subassembly includes a bundle of fuel pins in a tubular wrapper. A first series of grids spaced apart along the length of the subassembly, provide cells for locating all the pins in spaced relationship. A second series of grids alternate with the first-series, and provide dells only for peripheral pins. The pins toward the middle of the bundle are unsupported by the second series of grids. The arrangement is used in a liquid metal cooled fast breeder reactor. The second series of grids prevent bowing of the peripheral pins without restricting coolant flow.
FR7835535A 1977-12-19 1978-12-18 Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins Granted FR2412143A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5282477 1977-12-19

Publications (2)

Publication Number Publication Date
FR2412143A1 true FR2412143A1 (en) 1979-07-13
FR2412143B1 FR2412143B1 (en) 1983-08-26

Family

ID=10465460

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835535A Granted FR2412143A1 (en) 1977-12-19 1978-12-18 Grid structures in nuclear fuel subassembly - for fast breeder nuclear reactor with alternate grids supporting only peripheral fuel pins

Country Status (1)

Country Link
FR (1) FR2412143A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486294A1 (en) * 1980-07-04 1982-01-08 Atomic Energy Authority Uk Fuel sub-assembly for liq. metal cooled nuclear reactor - with certain bracing grids constructed so as to yield and allow removal of swollen fuel pins
CN109935367A (en) * 2017-12-19 2019-06-25 中国原子能科学研究院 A kind of spacer grid of fuel assembly and fuel assembly of band buckle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082679B (en) * 1959-04-22 1960-06-02 Siemens Ag Spacer in the form of a bar for elements with a large number of elements
US3176762A (en) * 1962-07-17 1965-04-06 Lucas Industries Ltd Supporting grids for heat exchanger elements
FR1429860A (en) * 1964-04-13 1966-02-25 Babcock & Wilcox Co Nuclear fuel element envelope
US3463703A (en) * 1968-07-24 1969-08-26 Atomic Energy Commission Fuel pin spacers
US4010796A (en) * 1971-11-26 1977-03-08 Reactor Centrum Nederland Lattice, composed of strips with connecting brackets positioned in between
US4059484A (en) * 1975-05-02 1977-11-22 Exxon Nuclear Company, Inc. Hybrid nuclear fuel assembly with reduced linear heat generation rates
FR2365861A1 (en) * 1976-09-22 1978-04-21 Westinghouse Electric Corp TRANSITIONAL AND CORE FUEL ASSEMBLY FOR NUCLEAR REACTOR

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082679B (en) * 1959-04-22 1960-06-02 Siemens Ag Spacer in the form of a bar for elements with a large number of elements
US3176762A (en) * 1962-07-17 1965-04-06 Lucas Industries Ltd Supporting grids for heat exchanger elements
FR1429860A (en) * 1964-04-13 1966-02-25 Babcock & Wilcox Co Nuclear fuel element envelope
US3463703A (en) * 1968-07-24 1969-08-26 Atomic Energy Commission Fuel pin spacers
US4010796A (en) * 1971-11-26 1977-03-08 Reactor Centrum Nederland Lattice, composed of strips with connecting brackets positioned in between
US4059484A (en) * 1975-05-02 1977-11-22 Exxon Nuclear Company, Inc. Hybrid nuclear fuel assembly with reduced linear heat generation rates
FR2365861A1 (en) * 1976-09-22 1978-04-21 Westinghouse Electric Corp TRANSITIONAL AND CORE FUEL ASSEMBLY FOR NUCLEAR REACTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486294A1 (en) * 1980-07-04 1982-01-08 Atomic Energy Authority Uk Fuel sub-assembly for liq. metal cooled nuclear reactor - with certain bracing grids constructed so as to yield and allow removal of swollen fuel pins
CN109935367A (en) * 2017-12-19 2019-06-25 中国原子能科学研究院 A kind of spacer grid of fuel assembly and fuel assembly of band buckle

Also Published As

Publication number Publication date
FR2412143B1 (en) 1983-08-26

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Legal Events

Date Code Title Description
ST Notification of lapse