CA2097412A1 - Fuel bundle for use in heavy water cooled reactors - Google Patents

Fuel bundle for use in heavy water cooled reactors

Info

Publication number
CA2097412A1
CA2097412A1 CA002097412A CA2097412A CA2097412A1 CA 2097412 A1 CA2097412 A1 CA 2097412A1 CA 002097412 A CA002097412 A CA 002097412A CA 2097412 A CA2097412 A CA 2097412A CA 2097412 A1 CA2097412 A1 CA 2097412A1
Authority
CA
Canada
Prior art keywords
region
neutron
bundle
fuel bundle
decrease
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.)
Granted
Application number
CA002097412A
Other languages
French (fr)
Other versions
CA2097412C (en
Inventor
Adi R. Dastur
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.)
Atomic Energy of Canada Ltd AECL
Original Assignee
Adi R. Dastur
Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited
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 Adi R. Dastur, Her Majesty In Right Of Canada As Represented By Atomic Energy Of Canada Limited filed Critical Adi R. Dastur
Priority to CA002097412A priority Critical patent/CA2097412C/en
Publication of CA2097412A1 publication Critical patent/CA2097412A1/en
Application granted granted Critical
Publication of CA2097412C publication Critical patent/CA2097412C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

Abstract

A fuel bundle for use in a heavy water cooled pressure tube reactor, having a plurality of elongated fuel rods or elements disposed therein, and in which a positive reactivity component is produced by a change in neutron spectrum and flux across the bundle, upon a decrease in coolant density, the improvement consists of placing fissile material for producing an increase in neutron multiplication, in a first region of the fuel bundle wherein the thermal neutron flux tends to decrease upon a decrease in coolant density, placing fertile material, in a second region of the fuel bundle wherein the thermal neutron flux tends to increase upon a decrease in coolant density, placing neutron absorber material mixed with the fertile material to absorb thermal neutrons in the second region, having neutron scattering material, disposed in a third region of the fuel bundle between the first and second regions, such that the mixture of the fertile material and the absorber in the second region redistributes the neutron flux across the bundle and thereby produces a negative reactivity component, when the coolant density decreases.
CA002097412A 1993-05-31 1993-05-31 Fuel bundle for use in heavy water cooled reactors Expired - Lifetime CA2097412C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002097412A CA2097412C (en) 1993-05-31 1993-05-31 Fuel bundle for use in heavy water cooled reactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002097412A CA2097412C (en) 1993-05-31 1993-05-31 Fuel bundle for use in heavy water cooled reactors

Publications (2)

Publication Number Publication Date
CA2097412A1 true CA2097412A1 (en) 1994-12-01
CA2097412C CA2097412C (en) 2005-08-23

Family

ID=4151722

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002097412A Expired - Lifetime CA2097412C (en) 1993-05-31 1993-05-31 Fuel bundle for use in heavy water cooled reactors

Country Status (1)

Country Link
CA (1) CA2097412C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041565A1 (en) * 1996-04-25 1997-11-06 Atomic Energy Of Canada Limited Low coolant void reactivity fuel bundle
US20110110484A1 (en) * 2009-11-02 2011-05-12 Ahlfeld Charles E Standing wave nuclear fission reactor and methods
CN103329207A (en) * 2010-11-15 2013-09-25 加拿大原子能有限公司 Nuclear fuel containing a neutron absorber
WO2016128821A1 (en) 2015-02-11 2016-08-18 Candu Energy Inc. Nuclear fuel containing a neutron absorber mixture
US9799414B2 (en) 2010-09-03 2017-10-24 Atomic Energy Of Canada Limited Nuclear fuel bundle containing thorium and nuclear reactor comprising same
US10950356B2 (en) 2010-11-15 2021-03-16 Atomic Energy Of Canada Limited Nuclear fuel containing recycled and depleted uranium, and nuclear fuel bundle and nuclear reactor comprising same

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011130841A1 (en) 2010-04-23 2011-10-27 Atomic Energy Of Canada Limited/Énergie Atomique Du Canada Limitée Pressure-tube reactor with pressurised moderator
EP3309795B1 (en) 2012-06-13 2019-10-30 Atomic Energy of Canada Limited/ Énergie Atomique du Canada Limitée Fuel channel assembly and fuel bundle for a nuclear reactor

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997041565A1 (en) * 1996-04-25 1997-11-06 Atomic Energy Of Canada Limited Low coolant void reactivity fuel bundle
US20110110484A1 (en) * 2009-11-02 2011-05-12 Ahlfeld Charles E Standing wave nuclear fission reactor and methods
US20220367070A1 (en) * 2009-11-02 2022-11-17 Terrapower, Llc Standing wave nuclear fission reactor and methods
US9236150B2 (en) * 2009-11-02 2016-01-12 Terrapower, Llc Standing wave nuclear fission reactor and methods
US11482344B2 (en) 2009-11-02 2022-10-25 Terrapower, Llc Standing wave nuclear fission reactor and methods
US9653187B2 (en) 2009-11-02 2017-05-16 Terrapower, Llc Standing wave nuclear fission reactor and methods
US9799414B2 (en) 2010-09-03 2017-10-24 Atomic Energy Of Canada Limited Nuclear fuel bundle containing thorium and nuclear reactor comprising same
CN107068210A (en) * 2010-11-15 2017-08-18 加拿大原子能有限公司 Nuclear fuel containing neutron-absorbing material
US10176898B2 (en) 2010-11-15 2019-01-08 Atomic Energy Of Canada Limited Nuclear fuel containing a neutron absorber
US10950356B2 (en) 2010-11-15 2021-03-16 Atomic Energy Of Canada Limited Nuclear fuel containing recycled and depleted uranium, and nuclear fuel bundle and nuclear reactor comprising same
CN103329207A (en) * 2010-11-15 2013-09-25 加拿大原子能有限公司 Nuclear fuel containing a neutron absorber
EP3893252A1 (en) 2015-02-11 2021-10-13 Candu Energy Inc. Nuclear fuel containing a neutron absorber mixture
WO2016128821A1 (en) 2015-02-11 2016-08-18 Candu Energy Inc. Nuclear fuel containing a neutron absorber mixture

Also Published As

Publication number Publication date
CA2097412C (en) 2005-08-23

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