AR115057A1 - REACTIVITY CONTROL SYSTEM USING GAS - Google Patents

REACTIVITY CONTROL SYSTEM USING GAS

Info

Publication number
AR115057A1
AR115057A1 ARP190101011A ARP190101011A AR115057A1 AR 115057 A1 AR115057 A1 AR 115057A1 AR P190101011 A ARP190101011 A AR P190101011A AR P190101011 A ARP190101011 A AR P190101011A AR 115057 A1 AR115057 A1 AR 115057A1
Authority
AR
Argentina
Prior art keywords
gas
reactivity
reactor
core
tubes
Prior art date
Application number
ARP190101011A
Other languages
Spanish (es)
Inventor
Zachary Todd Demers
Zane Harry Walker
Julian William Francis Millard
Smeena Qazi
Pamela Darlene Tume
Maliha Masrorr
Adam Eckhardt
Martin Walter Macdonald
Ibrahim Khalil Attieh
Michael Soulard
Jonathan Andrew Tyo
Anna Karmanova
Mei Chen
Original Assignee
Candu Energy Inc
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 Candu Energy Inc filed Critical Candu Energy Inc
Publication of AR115057A1 publication Critical patent/AR115057A1/en

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
    • G21C1/14—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
    • G21C7/22—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 a fluid or fluent neutron-absorbing material, e.g. by adding neutron-absorbing material to the coolant
    • 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
    • G21C7/24—Selection of substances for use as neutron-absorbing material
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C9/00—Emergency protection arrangements structurally associated with the reactor, e.g. safety valves provided with pressure equalisation devices
    • G21C9/02—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency
    • G21C9/033—Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse; Control elements having arrangements activated in an emergency by an absorbent fluid
    • 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)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)

Abstract

Un sistema de control de reactividad a base de gas para un reactor nuclear. El sistema controla la reactividad de un reactor nuclear mediante la inyección de gas absorbente de neutrones presurizado en tubos de gas que se colocan dentro del núcleo del reactor. Los tanques de inyección se llenan con el gas absorbente de neutrones. Tras la detección de un disparador de control de reactividad, los canales de comunicación de fluido entre los tanques de inyección y los tubos de gas se abren. El diferencial de presión entre los tanques de inyección y los tubos de gas hace que el gas absorbente de neutrones fluya hacia los tubos de gas, introduciendo así una reactividad negativa en el núcleo del reactor. La reactividad negativa se puede introducir en el núcleo de forma relativamente rápida, en comparación con los sistemas convencionales. El gas se puede dejar en el tubo de gas para mantener el reactor cerrado. El gas en los tubos de gas puede ser ventilado de manera controlada para controlar el aumento de reactividad en el núcleo cuando se reinicia el reactor.A gas-based reactivity control system for a nuclear reactor. The system controls the reactivity of a nuclear reactor by injecting pressurized neutron absorbing gas into gas tubes that are placed inside the reactor core. The injection tanks are filled with the neutron absorbing gas. Upon detection of a reactivity control trigger, the fluid communication channels between the injection tanks and the gas tubes are opened. The pressure differential between the injection tanks and the gas tubes causes the neutron-absorbing gas to flow into the gas tubes, thus introducing negative reactivity in the reactor core. Negative reactivity can be introduced into the core relatively quickly, compared to conventional systems. Gas can be left in the gas tube to keep the reactor closed. The gas in the gas tubes can be vented in a controlled manner to control the increased reactivity in the core when the reactor is restarted.

ARP190101011A 2018-04-16 2019-04-16 REACTIVITY CONTROL SYSTEM USING GAS AR115057A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201862658396P 2018-04-16 2018-04-16

Publications (1)

Publication Number Publication Date
AR115057A1 true AR115057A1 (en) 2020-11-25

Family

ID=68240557

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP190101011A AR115057A1 (en) 2018-04-16 2019-04-16 REACTIVITY CONTROL SYSTEM USING GAS

Country Status (3)

Country Link
AR (1) AR115057A1 (en)
CA (1) CA3097438A1 (en)
WO (1) WO2019200468A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2625280A (en) 2022-12-12 2024-06-19 Moltex Energy Ltd Temperature activated passive shutdown device for a nuclear reactor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA898422A (en) * 1972-04-18 D. Nicholson Frank Nuclear reactor control using neutron absorbing gas
GB1173813A (en) * 1966-05-06 1969-12-10 Gen Electric Canada Nuclear Reactor Control Using Neutron Absorption Fluid
US9362010B2 (en) * 2011-12-06 2016-06-07 Terrapower, Llc Passive reactivity control apparatus

Also Published As

Publication number Publication date
WO2019200468A1 (en) 2019-10-24
CA3097438A1 (en) 2019-10-24

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