GB1043782A - Improvements in or relating to fuel elements for nuclear reactors - Google Patents

Improvements in or relating to fuel elements for nuclear reactors

Info

Publication number
GB1043782A
GB1043782A GB12233/64A GB1223364A GB1043782A GB 1043782 A GB1043782 A GB 1043782A GB 12233/64 A GB12233/64 A GB 12233/64A GB 1223364 A GB1223364 A GB 1223364A GB 1043782 A GB1043782 A GB 1043782A
Authority
GB
United Kingdom
Prior art keywords
rod
axis
cutter
fins
channel
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
GB12233/64A
Inventor
Ennemond Maillet
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 GB1043782A publication Critical patent/GB1043782A/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
    • G21C3/02—Fuel elements
    • G21C3/28—Fuel elements with fissile or breeder material in solid form within a non-active casing
    • 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
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • 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
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/06—Casings; Jackets
    • G21C3/08—Casings; Jackets provided with external means to promote heat-transfer, e.g. fins, baffles
    • 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
    • G21C3/02—Fuel elements
    • G21C3/04—Constructional details
    • G21C3/16—Details of the construction within the casing
    • G21C3/17—Means for storage or immobilisation of gases in 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

Abstract

1,043,782. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 23, 1964 [March 21, 1963], No. 12233/64. Addition to 980,298. Heading G6C. A fuel element as described in the parent Specification has a set of parallel transverse fins provided on each of the portions of the sheath disposed on the concavely curved portions of the fuel rod, the fins of each set being arcuate in shape and their central surfaces forming semicylinders, the axes of which are parallel to each other and at an acute angle to a plane perpendicular to the longitudinal axis of the element. The fins are made by fixing the sheathed rod on a milling machine provided with a cylindrical milling cutter (Fig. 5, not shown) in a position such that the axis of rotation of the cutter intersects the axis of the sheathed rod, rotating the cutter arid simultaneously moving it along its axis of rotation in order to cut into the sheath, in one single passage, a sub-channel between two successive fins, withdrawing the cutter, relatively displacing the sheathed rod and the cutter in a direction parallel to the axis of the rod by an amount corresponding to the distance between two fins, and repeating the machining operation and the displacement parallel to the axis of the rod. 'The rod may be of pure uranium or uranium alloy and the sheath of a magnesium-zirconium alloy of low zirconium content. The element is supported in a channel through which coolant flows by means of four centring members (Fig. 3, not shown) arranged in planes passing through the common axis of the element and of the channel. The centring members may extend the length of the element or they may consist of a series of separate spiders. The coolant is caused to flow in two contra-rotating helical streams between each pair of centring members.
GB12233/64A 1962-02-09 1964-03-23 Improvements in or relating to fuel elements for nuclear reactors Expired GB1043782A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR887616A FR1321606A (en) 1962-02-09 1962-02-09 fuel elements for nuclear reactors
BE628206 1963-02-08
FR928831A FR84107E (en) 1962-02-09 1963-03-21 fuel elements for nuclear reactors

Publications (1)

Publication Number Publication Date
GB1043782A true GB1043782A (en) 1966-09-28

Family

ID=27158873

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5470/63A Expired GB980298A (en) 1962-02-09 1963-02-11 Improvements in or relating to fuel elements for nuclear reactors
GB12233/64A Expired GB1043782A (en) 1962-02-09 1964-03-23 Improvements in or relating to fuel elements for nuclear reactors

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5470/63A Expired GB980298A (en) 1962-02-09 1963-02-11 Improvements in or relating to fuel elements for nuclear reactors

Country Status (4)

Country Link
BE (1) BE628206A (en)
FR (2) FR1321606A (en)
GB (2) GB980298A (en)
LU (2) LU43139A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2077560A3 (en) * 2007-12-26 2009-09-30 Thorium Power, Inc. A fuel element, a fuel assembly and a method of using a fuel assembly
US8654917B2 (en) 2007-12-26 2014-02-18 Thorium Power, Inc. Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly
US9355747B2 (en) 2008-12-25 2016-05-31 Thorium Power, Inc. Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly
US10037823B2 (en) 2010-05-11 2018-07-31 Thorium Power, Inc. Fuel assembly
US10170207B2 (en) 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US10192644B2 (en) 2010-05-11 2019-01-29 Lightbridge Corporation Fuel assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394049A (en) * 1967-09-28 1968-07-23 Atomic Energy Commission Usa Nuclear reactor core configuration

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2077560A3 (en) * 2007-12-26 2009-09-30 Thorium Power, Inc. A fuel element, a fuel assembly and a method of using a fuel assembly
EP2228801A1 (en) * 2007-12-26 2010-09-15 Thorium Power, Inc. A fuel element, a fuel assembly and a method of using a fuel assembly
US8116423B2 (en) 2007-12-26 2012-02-14 Thorium Power, Inc. Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly
US8654917B2 (en) 2007-12-26 2014-02-18 Thorium Power, Inc. Nuclear reactor (alternatives), fuel assembly of seed-blanket subassemblies for nuclear reactor (alternatives), and fuel element for fuel assembly
US9355747B2 (en) 2008-12-25 2016-05-31 Thorium Power, Inc. Light-water reactor fuel assembly (alternatives), a light-water reactor, and a fuel element of fuel assembly
US11195629B2 (en) 2010-05-11 2021-12-07 Thorium Power, Inc. Fuel assembly
US10192644B2 (en) 2010-05-11 2019-01-29 Lightbridge Corporation Fuel assembly
US10991473B2 (en) 2010-05-11 2021-04-27 Thorium Power, Inc. Method of manufacturing a nuclear fuel assembly
US10037823B2 (en) 2010-05-11 2018-07-31 Thorium Power, Inc. Fuel assembly
US11837371B2 (en) 2010-05-11 2023-12-05 Thorium Power, Inc. Method of manufacturing a nuclear fuel assembly
US11862353B2 (en) 2010-05-11 2024-01-02 Thorium Power, Inc. Fuel assembly
US10170207B2 (en) 2013-05-10 2019-01-01 Thorium Power, Inc. Fuel assembly
US11211174B2 (en) 2013-05-10 2021-12-28 Thorium Power, Inc. Fuel assembly

Also Published As

Publication number Publication date
GB980298A (en) 1965-01-13
FR1321606A (en) 1963-03-22
LU45599A1 (en) 1964-05-06
FR84107E (en) 1964-11-27
LU43139A1 (en) 1963-04-05
BE628206A (en)

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