ES8502276A1 - Fuel flux having enrichment devided axially - Google Patents

Fuel flux having enrichment devided axially

Info

Publication number
ES8502276A1
ES8502276A1 ES520008A ES520008A ES8502276A1 ES 8502276 A1 ES8502276 A1 ES 8502276A1 ES 520008 A ES520008 A ES 520008A ES 520008 A ES520008 A ES 520008A ES 8502276 A1 ES8502276 A1 ES 8502276A1
Authority
ES
Spain
Prior art keywords
enrichment
nuclear fuel
zone
cluster
axial
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
ES520008A
Other languages
Spanish (es)
Other versions
ES520008A0 (en
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of ES8502276A1 publication Critical patent/ES8502276A1/en
Publication of ES520008A0 publication Critical patent/ES520008A0/en
Granted legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • G21C3/328—Relative disposition of the elements in the bundle lattice
    • 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)
  • Catalysts (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

A configuration of a nuclear fuel cluster (15) which permits the clearance for the cold, shutdown state to be preserved with minimum impairment of the operational efficiency. The cluster has a component which is made from fissile material and which is distributed over a substantial axial extent of the nuclear fuel cluster, the fuel having a relatively reduced enrichment in an axial zone (62) (the "zone of reduced enrichment") in an upper region, this zone corresponding at least partially to a section of the axial region in which the reactivity has a maximum in the cold shutdown state. The nuclear fuel cluster normally comprises a first subgroup of nuclear fuel rods (1) having a reduced enrichment in the zone of reduced enrichment as well as a second subgroup of nuclear fuel rods (2 to 8) having a uniform enrichment along its axial dimension. In order for the number of nuclear fuel rods which have to be characterised by an enrichment that is not axially uniform to be kept as low as possible, it is preferred for the first subgroup (1) to contain one of the rods having the highest enrichment of the nuclear fuel cluster. The resulting somewhat higher axial power peak towards the lower part of the nuclear fuel cluster can be compensated by arranging more burnable absorbers in a corresponding lower zone (67). A middle zone (70) is characterised by a higher enrichment and a lower gadolinium content, which leads to the section of the core having the highest reactivity.
ES520008A 1982-03-22 1983-02-23 FUEL ASSEMBLY FOR REACTOR CORE. Granted ES520008A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36039082A 1982-03-22 1982-03-22

Publications (2)

Publication Number Publication Date
ES8502276A1 true ES8502276A1 (en) 1984-04-16
ES520008A0 ES520008A0 (en) 1984-04-16

Family

ID=23417769

Family Applications (1)

Application Number Title Priority Date Filing Date
ES520008A Granted ES520008A0 (en) 1982-03-22 1983-02-23 FUEL ASSEMBLY FOR REACTOR CORE.

Country Status (5)

Country Link
JP (1) JPS58179391A (en)
DE (1) DE3308619A1 (en)
ES (1) ES520008A0 (en)
IT (1) IT1160742B (en)
SE (1) SE8301573L (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59102188A (en) * 1982-12-06 1984-06-13 株式会社東芝 Fuel assembly
FR2552920B1 (en) * 1983-09-30 1985-12-27 Framatome Sa HEART FOR A PRESSURIZED NUCLEAR REACTOR
JPS61275695A (en) * 1985-05-31 1986-12-05 株式会社東芝 Fuel assembly for boiling water reactor
JP2519693B2 (en) * 1986-10-31 1996-07-31 株式会社東芝 Fuel assembly
JP2510565B2 (en) * 1987-04-08 1996-06-26 株式会社日立製作所 Reactor fuel assembly
US5068082A (en) * 1987-07-18 1991-11-26 Kabushiki Kaisha Toshiba Fuel assembly for nuclear reactor
JP2510612B2 (en) * 1987-08-12 1996-06-26 株式会社日立製作所 Reactor core and initial reactor core
US4986958A (en) * 1987-11-02 1991-01-22 Hitachi, Ltd. Fuel assembly
US5009840A (en) * 1988-01-23 1991-04-23 Kabushiki Kaisha Toshiba Fuel assembly for nuclear reactor
JP2544249B2 (en) * 1990-12-20 1996-10-16 原子燃料工業株式会社 Fuel assembly and reactor core for boiling water reactors
JP3481648B2 (en) * 1993-05-18 2003-12-22 株式会社東芝 Reactor fuel assembly and first reactor core
JP6670133B2 (en) * 2016-03-04 2020-03-18 日立Ｇｅニュークリア・エナジー株式会社 Fuel assemblies and reactor cores

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5594183A (en) * 1979-01-10 1980-07-17 Tokyo Shibaura Electric Co Fuel assembly

Also Published As

Publication number Publication date
SE8301573L (en) 1983-09-23
JPS58179391A (en) 1983-10-20
IT8320146A0 (en) 1983-03-18
IT1160742B (en) 1987-03-11
DE3308619A1 (en) 1983-09-29
ES520008A0 (en) 1984-04-16
SE8301573D0 (en) 1983-03-22

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