GB1150729A - Improvements in Moderator Core Structures for Nuclear Reactors - Google Patents

Improvements in Moderator Core Structures for Nuclear Reactors

Info

Publication number
GB1150729A
GB1150729A GB32381/65A GB3238165A GB1150729A GB 1150729 A GB1150729 A GB 1150729A GB 32381/65 A GB32381/65 A GB 32381/65A GB 3238165 A GB3238165 A GB 3238165A GB 1150729 A GB1150729 A GB 1150729A
Authority
GB
United Kingdom
Prior art keywords
coolant
channels
blocks
fuel element
fuel
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
GB32381/65A
Inventor
Geoffrey William Triggs
Norman Prince
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
Priority to GB32381/65A priority Critical patent/GB1150729A/en
Priority to GB53908/68A priority patent/GB1150730A/en
Priority to DE1564982A priority patent/DE1564982C3/en
Priority to FR71156A priority patent/FR1487918A/en
Priority to BE684758D priority patent/BE684758A/xx
Publication of GB1150729A publication Critical patent/GB1150729A/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
    • G21C5/02—Details
    • G21C5/08—Means for preventing undesired asymmetric expansion of the complete structure ; Stretching devices, pins
    • 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
    • G21C5/04—Spatial arrangements allowing for Wigner growth
    • 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)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1,150,729. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 July, 1966 [28 July, 1965], No. 32381/65. Heading G6C. A gas-cooled graphite moderated nuclear reactor has the coolant flowing through the reactor core in two independent streams, one being a fuel coolant stream and the other a moderator coolant stream, means being provided whereby the two streams join within a region of the core near to the fuel coolant inlet. In one embodiment the core blocks 4 have longitudinal bores 5 defining vertical fuel element channels 8 and the interspaces between the core blocks form moderator coolant passages 9. The lower ends of the blocks 4 of the bottom layer nest together with the existence of only narrow interspaces between adjacent faces. A circumferential channel 24 is formed around the lower end of each of the blocks 4 of the bottom layer and these channels 24 are connected with the bores 5 of the blocks by radial ports 25. The channels 24 in combination form a common gas voidage space 26 across the lower end of the core structure. The blocks 4 are supported by a plate 6 from apertures in which tubes 27 forming part of a structure for supporting fuel elements in the channels 8 extend downwards. The tubes 27 have gas inlet ports 29. Gaseous coolant passes down through the moderator coolant passages 9 and enters the voidage space 26 through the radial ports 25 to join the fuel element coolant which passes directly into the fuel element channels 8 from the tubes 27. By means of this arrangement, coolant heated in passing down through the passages 9 does not come into contact with the core support structure. This coolant makes a significant contribution to the coolant flow through the fuel element channels 8 and the provision of the voidage space 26, which collects the coolant from the passages 9 before it enters the fuel element channels 8, helps to avoid serious starvation of coolant flow in adjacent fuel element channels when the fuel elements are discharged from any particular fuel element channel.
GB32381/65A 1965-07-28 1965-07-28 Improvements in Moderator Core Structures for Nuclear Reactors Expired GB1150729A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB32381/65A GB1150729A (en) 1965-07-28 1965-07-28 Improvements in Moderator Core Structures for Nuclear Reactors
GB53908/68A GB1150730A (en) 1965-07-28 1966-07-21 Improvements in Moderator Core Structures for Nuclear Reactors
DE1564982A DE1564982C3 (en) 1965-07-28 1966-07-27 Moderator setup for nuclear reactors
FR71156A FR1487918A (en) 1965-07-28 1966-07-27 Construction form of the retarder core of a nuclear reactor
BE684758D BE684758A (en) 1965-07-28 1966-07-28

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32381/65A GB1150729A (en) 1965-07-28 1965-07-28 Improvements in Moderator Core Structures for Nuclear Reactors

Publications (1)

Publication Number Publication Date
GB1150729A true GB1150729A (en) 1969-04-30

Family

ID=26249007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32381/65A Expired GB1150729A (en) 1965-07-28 1965-07-28 Improvements in Moderator Core Structures for Nuclear Reactors

Country Status (4)

Country Link
BE (1) BE684758A (en)
DE (1) DE1564982C3 (en)
FR (1) FR1487918A (en)
GB (1) GB1150729A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111128411A (en) * 2019-12-31 2020-05-08 中国科学院合肥物质科学研究院 Small-size solid state reactor core

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111128411A (en) * 2019-12-31 2020-05-08 中国科学院合肥物质科学研究院 Small-size solid state reactor core

Also Published As

Publication number Publication date
BE684758A (en) 1967-01-30
DE1564982B2 (en) 1974-12-19
DE1564982A1 (en) 1970-01-22
DE1564982C3 (en) 1975-08-21
FR1487918A (en) 1967-07-07

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees