[go: up one dir, main page]

GB1511494A - Nuclear reactor fuel elements - Google Patents

Nuclear reactor fuel elements

Info

Publication number
GB1511494A
GB1511494A GB36640/74A GB3664074A GB1511494A GB 1511494 A GB1511494 A GB 1511494A GB 36640/74 A GB36640/74 A GB 36640/74A GB 3664074 A GB3664074 A GB 3664074A GB 1511494 A GB1511494 A GB 1511494A
Authority
GB
United Kingdom
Prior art keywords
holes
conduits
levels
coolant
degrees
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
GB36640/74A
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 GB36640/74A priority Critical patent/GB1511494A/en
Priority to AU83874/75A priority patent/AU491060B2/en
Priority to FR7525677A priority patent/FR2282697A1/en
Priority to JP50100568A priority patent/JPS5847676B2/en
Priority to IT69107/75A priority patent/IT1041585B/en
Publication of GB1511494A publication Critical patent/GB1511494A/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
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/326—Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different composition; comprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
    • G21C15/18—Emergency cooling arrangements; Removing shut-down heat
    • 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
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/322—Means to influence the coolant flow through or around the bundles
    • 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)
  • Structure Of Emergency Protection For Nuclear Reactors (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1511494 Fuel elements UNITED KINGDOM ATOMIC ENERGY AUTHORITY 7 Aug 1975 [20 Aug 1974] 36640/74 Heading G6C A nuclear fuel assembly comprises a cluster 1 of fuel rods 2 supported in a first set of lattice positions by transverse grids 3, 4 and 5, the interspaces between the rods defining subchannels through which a main coolant flows in the direction of the arrow A, a second set of lattice positions coinciding with some of the sub-channels and being occupied by satellite conduits 7 and a central conduit 8 for auxiliary coolant. The conduits 7, 8 are closed at their lower ends and connected at their upper ends via a coolant manifold 9 to a supply S of auxiliary coolant, to supplement the main coolant. The conduits 7, 8 have a series of holes (7a), 8a in their side-walls through which auxiliary coolant is ejected laterally. The ejection holes (7a) are drilled at levels I-IX, alternately as a single radial hole 16 and as a pair of holes 17 and the conduits 7 are arranged so that the pattern of ejection holes appears as shown in Fig. 3 at levels I, III, V, VII and IX, and as shown in Fig. 4 at levels II, IV, VI and VIII. The orientation of ejection holes 8a in the central conduit 8 is alternately displaced by 60 degrees so that the effect at the respective levels shown in Figs. 3 and 4 is achieved. It is advantageous to provide a further set of holes at the top of the cluster, designated level X. At level X, the satellite conduits have three holes equispaced at 120 degrees (Fig. 6c, not shown) while the central conduit has six holes equispaced at 60 degrees (Fig. 7b, not shown).
GB36640/74A 1974-08-20 1974-08-20 Nuclear reactor fuel elements Expired GB1511494A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB36640/74A GB1511494A (en) 1974-08-20 1974-08-20 Nuclear reactor fuel elements
AU83874/75A AU491060B2 (en) 1974-08-20 1975-08-12 Improvements in or relating to nuclear reactor fuel elements
FR7525677A FR2282697A1 (en) 1974-08-20 1975-08-19 NUCLEAR FUEL ASSEMBLY
JP50100568A JPS5847676B2 (en) 1974-08-20 1975-08-19 Genshiroyounenriyoyouso
IT69107/75A IT1041585B (en) 1974-08-20 1975-08-19 GROUP OF COMBUSTIBLE ELEMENTS FOR NUCLEAR REACTORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36640/74A GB1511494A (en) 1974-08-20 1974-08-20 Nuclear reactor fuel elements

Publications (1)

Publication Number Publication Date
GB1511494A true GB1511494A (en) 1978-05-17

Family

ID=10389938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36640/74A Expired GB1511494A (en) 1974-08-20 1974-08-20 Nuclear reactor fuel elements

Country Status (4)

Country Link
JP (1) JPS5847676B2 (en)
FR (1) FR2282697A1 (en)
GB (1) GB1511494A (en)
IT (1) IT1041585B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160698A (en) * 1984-06-22 1985-12-24 Westinghouse Electric Corp Moderator control apparatus for a nuclear reactor fuel assembly
US4683103A (en) * 1985-02-12 1987-07-28 Westinghouse Electric Corp. Spectral shift apparatus and method for a nuclear reactor fuel assembly
US4687621A (en) * 1984-08-06 1987-08-18 Westinghouse Electric Corp. Nuclear fuel assembly with improved spectral shift-producing rods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4225387A (en) * 1978-03-07 1980-09-30 Nuclear Power Company Limited Liquid metal cooled past breeder nuclear reactors
US4755348A (en) * 1987-01-12 1988-07-05 General Electric Company Cooled water rod (LOCA conditions)
US5255300A (en) * 1991-07-30 1993-10-19 Siemens Power Corporation Fuel assembly for boiling water reactors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160698A (en) * 1984-06-22 1985-12-24 Westinghouse Electric Corp Moderator control apparatus for a nuclear reactor fuel assembly
US4657726A (en) * 1984-06-22 1987-04-14 Westinghouse Electric Corp. Moderator control apparatus for a nuclear reactor fuel assembly
US4687621A (en) * 1984-08-06 1987-08-18 Westinghouse Electric Corp. Nuclear fuel assembly with improved spectral shift-producing rods
US4683103A (en) * 1985-02-12 1987-07-28 Westinghouse Electric Corp. Spectral shift apparatus and method for a nuclear reactor fuel assembly

Also Published As

Publication number Publication date
IT1041585B (en) 1980-01-10
JPS5847676B2 (en) 1983-10-24
FR2282697B1 (en) 1982-03-26
JPS5146693A (en) 1976-04-21
AU8387475A (en) 1977-02-17
FR2282697A1 (en) 1976-03-19

Similar Documents

Publication Publication Date Title
GB1435115A (en) Coolant mixing vanes
GB1537711A (en) Pressurized fuel cell power plant with steam flow through the cells
GB973701A (en) Improvements in or relating to exchange processes
GB884498A (en) Improvements in or relating to nuclear reactors
GB1511494A (en) Nuclear reactor fuel elements
GB1411116A (en) Nuclear fuel cores
ES453573A1 (en) Nuclear reactor core flow baffling
ES8107407A1 (en) Boiling water reactor.
GB1513997A (en) Baffle-former arrangement for nuclear reactor vessel intervals
GB1131076A (en) Nuclear reactors
GB1338462A (en) Nuclear reactor fuel elements
GB1502427A (en) Nuclear reactor coolant channels
GB1209632A (en) Improvements in or relating to nuclear reactors
GB1362562A (en) Nuclear reactor fuel elements
ES467218A1 (en) Nuclear reactor
GB1241456A (en) Nuclear reactor fuel assembly
GB1129363A (en) Nuclear reactors
GB1188086A (en) Improvements relating to Nuclear Reactors
ES8801056A1 (en) Nuclear reactor
GB1150729A (en) Improvements in Moderator Core Structures for Nuclear Reactors
GB1478985A (en) Nuclear reactor fuel element sub-assemblies
GB1286629A (en) Nuclear reactors
GB1113145A (en) Improvements in and relating to gas-cooled nuclear reactors
GB1081281A (en) Nuclear reactor fuel element assemblies
GB821263A (en) Improvements in or relating to fuel elements for nuclear reactors

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee