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GB846865A - Improvements relating to nuclear reactors - Google Patents

Improvements relating to nuclear reactors

Info

Publication number
GB846865A
GB846865A GB29438/55A GB2943855A GB846865A GB 846865 A GB846865 A GB 846865A GB 29438/55 A GB29438/55 A GB 29438/55A GB 2943855 A GB2943855 A GB 2943855A GB 846865 A GB846865 A GB 846865A
Authority
GB
United Kingdom
Prior art keywords
block
blocks
spacing
growth
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
GB29438/55A
Inventor
John Jeffrey Stubbs
Terence Ingham
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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
Priority to BE559090D priority Critical patent/BE559090A/xx
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB29438/55A priority patent/GB846865A/en
Priority to FR1175779D priority patent/FR1175779A/en
Priority to US661893A priority patent/US2998364A/en
Priority to DEE14197A priority patent/DE1099098B/en
Publication of GB846865A publication Critical patent/GB846865A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
    • C30B25/02—Epitaxial-layer growth
    • C30B25/04—Pattern deposit, e.g. by using masks
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C5/00—Moderator or core structure; Selection of materials for use as moderator
    • G21C5/02—Details
    • G21C5/08—Means for preventing undesired asymmetric expansion of the complete structure ; Stretching devices, pins
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Measurement Of Radiation (AREA)

Abstract

846,865. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. Jan. 14, 1957 [Oct. 14, 1955], No. 29438/55. Class 39(4). [Also in Group X] A graphite block for a moderator structure comprises a channel 11 for fuel elements extending lengthwise of the block but offset diagonally from its centre. Thus when the blocks, having minimum rate of Wigner growth in their lengthwise direction, are assembled into the structure, Fig. 3, with spacing to allow transverse growth, a square lattice is provided without allowing a straight neutron path through the structure. To achieve this spacing, eight identical pins 14 are inserted in each block, each pin having a recessed end 18 into which the smaller end of a similar pin fits. These pins have minimum Wigner growth along their length. The corner 19 of each block remote from the fuel channel is chamfered to allow clearance. The fuel channel is aligned in adjacent blocks by a short graphite tube fitting in recesses 12. Vertical control rod channels are formed by milling out quadrants in the appropriate corners of certain blocks or by milling out semi-circular recesses in the sides of blocks.
GB29438/55A 1955-10-14 1955-10-14 Improvements relating to nuclear reactors Expired GB846865A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE559090D BE559090A (en) 1955-10-14
GB29438/55A GB846865A (en) 1955-10-14 1955-10-14 Improvements relating to nuclear reactors
FR1175779D FR1175779A (en) 1955-10-14 1957-05-24 Nuclear reactor
US661893A US2998364A (en) 1955-10-14 1957-05-27 Improvements relating to moderator structures for nuclear reactors
DEE14197A DE1099098B (en) 1955-10-14 1957-05-28 Moderator setup for a nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29438/55A GB846865A (en) 1955-10-14 1955-10-14 Improvements relating to nuclear reactors

Publications (1)

Publication Number Publication Date
GB846865A true GB846865A (en) 1960-08-31

Family

ID=10291561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29438/55A Expired GB846865A (en) 1955-10-14 1955-10-14 Improvements relating to nuclear reactors

Country Status (3)

Country Link
BE (1) BE559090A (en)
FR (1) FR1175779A (en)
GB (1) GB846865A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU36486A1 (en) * 1957-10-22
NL242170A (en) * 1958-08-21
FR1214246A (en) * 1958-10-18 1960-04-07 Commissariat Energie Atomique New binding mode of the solid moderator of a vertical channel atomic reactor with a centered hexagonal lattice
NL125823C (en) * 1958-10-18
US3076753A (en) * 1959-03-16 1963-02-05 Havilland Engine Co Ltd Nuclear reactor core
NL129679C (en) * 1960-03-11
GB908305A (en) * 1960-07-01 1962-10-17 Atomic Energy Authority Uk Improvements in or relating to nuclear reactors
BE605142A (en) * 1960-07-04

Also Published As

Publication number Publication date
BE559090A (en)
FR1175779A (en) 1959-04-01

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