GB1028364A - Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor - Google Patents

Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor

Info

Publication number
GB1028364A
GB1028364A GB2794/63A GB279463A GB1028364A GB 1028364 A GB1028364 A GB 1028364A GB 2794/63 A GB2794/63 A GB 2794/63A GB 279463 A GB279463 A GB 279463A GB 1028364 A GB1028364 A GB 1028364A
Authority
GB
United Kingdom
Prior art keywords
fuel
spine
casing
bore
graphite
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
GB2794/63A
Inventor
Pierre Jean Camille Alb Marien
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 GB2794/63A priority Critical patent/GB1028364A/en
Priority to DE19641464887 priority patent/DE1464887A1/en
Priority to FR959631A priority patent/FR1389586A/en
Priority to AT11364A priority patent/AT257754B/en
Priority to LU45186D priority patent/LU45186A1/xx
Priority to CH54664A priority patent/CH416858A/en
Priority to SE791/64A priority patent/SE310741B/xx
Publication of GB1028364A publication Critical patent/GB1028364A/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
    • G21C3/04—Constructional details
    • G21C3/041—Means for removal of gases from fuel elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C1/00—Reactor types
    • G21C1/04—Thermal reactors ; Epithermal reactors
    • G21C1/06—Heterogeneous reactors, i.e. in which fuel and moderator are separated
    • G21C1/08—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor
    • G21C1/10—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor moderator and coolant being different or separated
    • G21C1/12—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being highly pressurised, e.g. boiling water reactor, integral super-heat reactor, pressurised water reactor moderator and coolant being different or separated moderator being solid, e.g. Magnox reactor or gas-graphite reactor
    • 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
    • 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

1,028,364. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Jan. 22. 1964 [Jan. 22, 1963], No. 2794/63. Heading G6C. A gas cooled nuclear fuel element utilizing a portion of the coolant flow for purging fission products from the fuel includes at least one annular fuel member mounted on a non-fuel material spine within a casing, ports in the casing communicating with a coaxial bore in the spine, the diffusivities of the materials of the fuel cartridge, casing and spine being such that fission products pass preferentially into the spine bore. These materials may also be chosen such that, in addition to the flow through the bore via the casing ports, there is a continuous inflow of coolant gas through the casing walls to the spine bore. As seen, seven fuel elements 11 form a fuel assembly including a graphite end block 16. Each fuel element comprises a graphite hexagonal casing 18 having a metal end cap 19, and annular fuel members 11a mounted on the spine 26, which comprises a number of short lengths, each supporting three fuel members. Immediately below the inlet ports 22 is a reactive graphite filter 24. A baffle 40 engages the casing and spine, and thereby ensures that the purge gas passes into the bore 26a. The fuel members and spine are supported on a spider 28, beneath which is a pocket 41 for collecting corroded graphite particles. Immediately beneath spacer 31 is a flow distribution disc 32 leading to a purification unit 33; this comprises eight longitudinal grooves 34 filled with porous material, below which is a filter bed 35. Narrow bore tubing (12, Fig. 1) carried the purge gas from each fuel element/fuel assembly. The reactor (Fig. 1) is helium cooled and has a core of fuel assemblies of the type described. Gas enters an annular inlet chamber 8 from conduits 9b and passes down through an annular graphite block reflector 4 to a lower inlet plenum chamber. Gas passes through the core and leaves the reactor through inner pipes 9a. The purge gas leaving the fuel elements/fuel assemblies via tubes 12 passes through a means 15 for sensing the pressure drop across each fuel element/fuel assembly (thus monitoring fuel casing continuity), a sampling facility 13, and a filter 14, from which the gas enters the reactor coolant inlet.
GB2794/63A 1963-01-22 1963-01-22 Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor Expired GB1028364A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB2794/63A GB1028364A (en) 1963-01-22 1963-01-22 Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor
DE19641464887 DE1464887A1 (en) 1963-01-22 1964-01-08 Nuclear fuel element
FR959631A FR1389586A (en) 1963-01-22 1964-01-08 nuclear reactor fuel element
AT11364A AT257754B (en) 1963-01-22 1964-01-08 Nuclear fuel element
LU45186D LU45186A1 (en) 1963-01-22 1964-01-09
CH54664A CH416858A (en) 1963-01-22 1964-01-16 Gas-cooled nuclear reactor
SE791/64A SE310741B (en) 1963-01-22 1964-01-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2794/63A GB1028364A (en) 1963-01-22 1963-01-22 Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor

Publications (1)

Publication Number Publication Date
GB1028364A true GB1028364A (en) 1966-05-04

Family

ID=9746042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2794/63A Expired GB1028364A (en) 1963-01-22 1963-01-22 Improvements in or relating to gas cooled nuclear reactors and fuel elements therefor

Country Status (6)

Country Link
AT (1) AT257754B (en)
CH (1) CH416858A (en)
DE (1) DE1464887A1 (en)
GB (1) GB1028364A (en)
LU (1) LU45186A1 (en)
SE (1) SE310741B (en)

Also Published As

Publication number Publication date
LU45186A1 (en) 1964-03-09
AT257754B (en) 1967-10-25
SE310741B (en) 1969-05-12
CH416858A (en) 1966-07-15
DE1464887A1 (en) 1969-09-04

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