GB1128066A - Improvements in or relating to the control of nuclear reactors - Google Patents

Improvements in or relating to the control of nuclear reactors

Info

Publication number
GB1128066A
GB1128066A GB188/66A GB18866A GB1128066A GB 1128066 A GB1128066 A GB 1128066A GB 188/66 A GB188/66 A GB 188/66A GB 18866 A GB18866 A GB 18866A GB 1128066 A GB1128066 A GB 1128066A
Authority
GB
United Kingdom
Prior art keywords
neutron flux
fuel elements
elements
jan
variations
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
GB188/66A
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.)
Skoda np
Original Assignee
Skoda np
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 Skoda np filed Critical Skoda np
Publication of GB1128066A publication Critical patent/GB1128066A/en
Expired legal-status Critical Current

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
    • 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
    • G21C1/14—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor
    • G21C1/16—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor
    • G21C1/18—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor coolant being pressurised
    • G21C1/20—Heterogeneous reactors, i.e. in which fuel and moderator are separated moderator being substantially not pressurised, e.g. swimming-pool reactor moderator and coolant being different or separated, e.g. sodium-graphite reactor, sodium-heavy water reactor or organic coolant-heavy water reactor coolant being pressurised moderator being liquid, e.g. pressure-tube reactor
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

1,128,066. Controlling reactors. SKODA NARODNI PODNIK. 3 Jan., 1966 [3 Jan; 1965], No.188/662. Heading G6C. The controlsystem of a liquid-moderated nuclear reactor comprises neutron-absorption elements which.. may be either in the form of grids or plates with apertures mounted at right angles to the longitudinal axes of the fuelelements, being immersed inthe moderator and movable in the direction of the longitudinal axes of the fuel elements by drive means, the thickness of eachelement being smaller than the length of the fuel elements. This system avoids interference with the neutron flux distribution in the plane of the radii of the reactor core and replaces the same by variations in the level of the neutron flux, and these variations can be utilized to give a more uniform neutron flux along the core height, given a symmetrical arrangement of the absorption elements; if the latter are arranged unsymmetrically, a maximum value for the neutron flux can be located at the place of entry of the colder coolant so as to enable theinlet temperature of the coolant to be increased which results in an increase in the output and efficiency of the plant while the surface temperature of the fuel elements is. maintained. The system is particularly suitable for powerful heavy watermoderated reactors.
GB188/66A 1965-01-03 1966-01-03 Improvements in or relating to the control of nuclear reactors Expired GB1128066A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS565 1965-01-03

Publications (1)

Publication Number Publication Date
GB1128066A true GB1128066A (en) 1968-09-25

Family

ID=5331429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB188/66A Expired GB1128066A (en) 1965-01-03 1966-01-03 Improvements in or relating to the control of nuclear reactors

Country Status (4)

Country Link
DE (1) DE1514657A1 (en)
FR (1) FR1462735A (en)
GB (1) GB1128066A (en)
SE (1) SE302807B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237595A (en) * 1990-02-26 1993-08-17 Westinghouse Electric Corp. Guide plate for guide tubes used in nuclear reactors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5237595A (en) * 1990-02-26 1993-08-17 Westinghouse Electric Corp. Guide plate for guide tubes used in nuclear reactors

Also Published As

Publication number Publication date
FR1462735A (en) 1966-12-16
SE302807B (en) 1968-08-05
DE1514657A1 (en) 1969-06-19

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