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SE8305606L - Nuclear reactor control rod - Google Patents

Nuclear reactor control rod

Info

Publication number
SE8305606L
SE8305606L SE8305606A SE8305606A SE8305606L SE 8305606 L SE8305606 L SE 8305606L SE 8305606 A SE8305606 A SE 8305606A SE 8305606 A SE8305606 A SE 8305606A SE 8305606 L SE8305606 L SE 8305606L
Authority
SE
Sweden
Prior art keywords
control rod
absorber
cross
fuel
nuclear reactor
Prior art date
Application number
SE8305606A
Other languages
Swedish (sv)
Other versions
SE8305606D0 (en
Inventor
S Helmersson
Original Assignee
Asea Atom Ab
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 Asea Atom Ab filed Critical Asea Atom Ab
Priority to SE8305606A priority Critical patent/SE8305606L/en
Publication of SE8305606D0 publication Critical patent/SE8305606D0/en
Priority to DE19843436101 priority patent/DE3436101A1/en
Priority to FI843974A priority patent/FI843974L/en
Priority to CH4862/84A priority patent/CH665046A5/en
Publication of SE8305606L publication Critical patent/SE8305606L/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C7/00—Control of nuclear reaction
    • G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
    • G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
    • G21C7/10—Construction of control elements
    • G21C7/113—Control elements made of flat elements; Control elements having cruciform cross-section
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

Control rod (16a) for a nuclear reactor with absorber sheets (24a-27a) which contain an absorber material (29) for neutrons and which form a right-angled cross in the cross-section of the control rod, two absorber sheets (26a, 27a) at right angles to one another lying along two sides of a fuel-element bundle (10a) which contains a plurality of fuel rods (11). According to the invention, at least one absorber sheet, in the part (31) extending along a number of the fuel rods (11a, 11b, 11c) of the fuel-element bundle which are closest to the centre of the cross, is provided with a smaller quantity of absorber material than the part (30) extending along fuel rods located further away from the centre of the cross. As a result of the said distribution of the absorber material in the control rod, it is possible to increase the cycle length of a reactor considerably. <IMAGE>
SE8305606A 1983-10-12 1983-10-12 Nuclear reactor control rod SE8305606L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8305606A SE8305606L (en) 1983-10-12 1983-10-12 Nuclear reactor control rod
DE19843436101 DE3436101A1 (en) 1983-10-12 1984-10-02 CONTROL STICK FOR A CORE REACTOR
FI843974A FI843974L (en) 1983-10-12 1984-10-10 STYRSTAV FOER KAERNREAKTOR.
CH4862/84A CH665046A5 (en) 1983-10-12 1984-10-10 Control stick and fuel bundle for a core reactor.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8305606A SE8305606L (en) 1983-10-12 1983-10-12 Nuclear reactor control rod

Publications (2)

Publication Number Publication Date
SE8305606D0 SE8305606D0 (en) 1983-10-12
SE8305606L true SE8305606L (en) 1985-04-13

Family

ID=20352866

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8305606A SE8305606L (en) 1983-10-12 1983-10-12 Nuclear reactor control rod

Country Status (4)

Country Link
CH (1) CH665046A5 (en)
DE (1) DE3436101A1 (en)
FI (1) FI843974L (en)
SE (1) SE8305606L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500752C2 (en) * 1988-01-11 1994-08-22 Asea Atom Ab Control rod for nuclear reactors
SE513289C2 (en) * 1998-12-23 2000-08-21 Asea Atom Ab Cross-shaped control rod where the amount of absorber material is smaller in the upper part of the control rod than in its lower part

Also Published As

Publication number Publication date
FI843974A7 (en) 1985-04-13
SE8305606D0 (en) 1983-10-12
FI843974L (en) 1985-04-13
FI843974A0 (en) 1984-10-10
DE3436101A1 (en) 1985-05-02
CH665046A5 (en) 1988-04-15

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8305606-9

Effective date: 19881220