GB969984A - Improvements in moderator stacks for nuclear reactors - Google Patents

Improvements in moderator stacks for nuclear reactors

Info

Publication number
GB969984A
GB969984A GB42648/62A GB4264862A GB969984A GB 969984 A GB969984 A GB 969984A GB 42648/62 A GB42648/62 A GB 42648/62A GB 4264862 A GB4264862 A GB 4264862A GB 969984 A GB969984 A GB 969984A
Authority
GB
United Kingdom
Prior art keywords
grooves
bars
fins
columns
channel wall
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
GB42648/62A
Inventor
Jean Forestier
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 GB969984A publication Critical patent/GB969984A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/14—Moderator or core structure; Selection of materials for use as moderator characterised by shape
    • G21C5/16—Shape of its constituent parts
    • 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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

969,984. Moderators. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 12,1962 [Nov. 10,1961], No. 42648/62. Heading G6C. A nuclear reactor moderator comprises a series of adjacent columns each formed by a plurality of bars stocked end to end, some of the columns having longitudinal cylindrical channels therein for receiving fuel elements, and is characterized in that at least some of the fuel channels include grooves extending along the channels, these grooves sensing to increase the coolant flow cross-section, whilst still retaining sufficient of the original channel wall to locate the fuel element radially. Fig. 2 shows a fuel element 14<SP>1</SP>, having longitudinal fins 16<SP>1</SP>, located by its fins in a channel 12<SP>1</SP>; the channel wall includes a number of helical grooves 18. The grooves, whose depth and/or width may vary along their length, will all be of the same pitch, and may either be of the same helix, or arranged in adjacent pairs of opposite helix. Where the fins are circular or helical, straight grooves may be formed in the channel wall. The grooves may either be machined in individual bars, or in assembled columns of bars. The bars may be of graphite or berylium.
GB42648/62A 1961-11-10 1962-11-12 Improvements in moderator stacks for nuclear reactors Expired GB969984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR878622A FR1312623A (en) 1961-11-10 1961-11-10 Moderator bar for nuclear reactor and nuclear reactor with application

Publications (1)

Publication Number Publication Date
GB969984A true GB969984A (en) 1964-09-16

Family

ID=8766492

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42648/62A Expired GB969984A (en) 1961-11-10 1962-11-12 Improvements in moderator stacks for nuclear reactors

Country Status (5)

Country Link
BE (1) BE624005A (en)
DE (1) DE1280428B (en)
FR (1) FR1312623A (en)
GB (1) GB969984A (en)
LU (1) LU42615A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2782158A (en) * 1945-11-02 1957-02-19 John A Wheeler Neutronic reactor
GB790688A (en) * 1955-03-18 1958-02-12 Gen Electric Co Ltd Improvements in or relating to heat transfer arrangements
BE549850A (en) * 1955-07-27
BE571895A (en) * 1957-10-09
GB858247A (en) * 1958-03-18 1961-01-11 Thompson Nuclear Energy Co Ltd Improvements relating to nuclear reactors

Also Published As

Publication number Publication date
LU42615A1 (en) 1962-12-31
FR1312623A (en) 1962-12-21
DE1280428B (en) 1968-10-17
BE624005A (en)

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