GB1156440A - Nuclear Fuel Assembly - Google Patents

Nuclear Fuel Assembly

Info

Publication number
GB1156440A
GB1156440A GB28472/68A GB2847268A GB1156440A GB 1156440 A GB1156440 A GB 1156440A GB 28472/68 A GB28472/68 A GB 28472/68A GB 2847268 A GB2847268 A GB 2847268A GB 1156440 A GB1156440 A GB 1156440A
Authority
GB
United Kingdom
Prior art keywords
fuel
annular member
nodes
pencils
lattice
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.)
Expired
Application number
GB28472/68A
Inventor
Claude Feutrel
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1156440A publication Critical patent/GB1156440A/en
Expired 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
    • G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
    • G21C3/3315—Upper nozzle
    • 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

1,156,440. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 14 June, 1968 [5 July, 1967], No. 28472/68. Heading G6C. A nuclear fuel assembly comprises a plurality of canned fuel pencils maintained in parallel relation along the nodes of a lattice by means of a support grid to which one end of each fuel pencil is attached and by means of one or more braces which maintain the spacing of the fuel pencils along the assembly. The support grid comprises an annular member 24 and a series of rectilineal and parallel supporting beams 22 secured to the annular member and having an elongated transverse cross-section in the direction of coolant flow, each beam being made up of two strip components joined by means of spot welds 38. The strip components are so shaped as to form, when juxtaposed, collars for accommodating necked portions of the upper end-caps 18 of the fuel pencils. The fuel canning is stainless steel, a zirconium-base alloy or berryllium and the end-caps have a substantial vertical development. There is formed in a locking endring attached to the annular member 24 an annular recess which is intended to receive the jaws of a fuel-handling grab. Parallel slots in the form of castellated notches are formed in the walls of the annular member 24 and are equal in depth to the height of the beams 22. In the embodiment shown, the strip components are asymmetric. Thus the collars are not located at the nodes of a constant-mesh lattice but at the nodes of a pseudo-circular lattice. The fuel assembly may be located in a tubular sleeve of moderator material so as to constitute a cartridge which can be handled as a single unit.
GB28472/68A 1967-07-05 1968-06-14 Nuclear Fuel Assembly Expired GB1156440A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR113254A FR1537786A (en) 1967-07-05 1967-07-05 Nuclear fuel assembly

Publications (1)

Publication Number Publication Date
GB1156440A true GB1156440A (en) 1969-06-25

Family

ID=8634556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28472/68A Expired GB1156440A (en) 1967-07-05 1968-06-14 Nuclear Fuel Assembly

Country Status (5)

Country Link
BE (1) BE716393A (en)
DE (1) DE1994436U (en)
FR (1) FR1537786A (en)
GB (1) GB1156440A (en)
LU (1) LU56388A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197112A (en) * 1986-11-03 1988-05-11 Atomic Energy Authority Uk Fuel sub-assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197112A (en) * 1986-11-03 1988-05-11 Atomic Energy Authority Uk Fuel sub-assembly
GB2197112B (en) * 1986-11-03 1990-01-24 Atomic Energy Authority Uk Nuclear fuel element sub-assemblies

Also Published As

Publication number Publication date
BE716393A (en) 1968-11-04
DE1994436U (en) 1968-09-26
FR1537786A (en) 1968-08-30
LU56388A1 (en) 1968-10-21

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