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GB2018421A - A device for measuring local power in a nuclear reactor fuel assembly - Google Patents

A device for measuring local power in a nuclear reactor fuel assembly

Info

Publication number
GB2018421A
GB2018421A GB7909545A GB7909545A GB2018421A GB 2018421 A GB2018421 A GB 2018421A GB 7909545 A GB7909545 A GB 7909545A GB 7909545 A GB7909545 A GB 7909545A GB 2018421 A GB2018421 A GB 2018421A
Authority
GB
United Kingdom
Prior art keywords
gamma
rod
nuclear reactor
fuel assembly
local power
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
GB7909545A
Other versions
GB2018421B (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.)
Electricite de France SA
Original Assignee
Electricite de France SA
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
Priority claimed from US05/888,881 external-priority patent/US4298430A/en
Application filed by Electricite de France SA filed Critical Electricite de France SA
Publication of GB2018421A publication Critical patent/GB2018421A/en
Application granted granted Critical
Publication of GB2018421B publication Critical patent/GB2018421B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G21C17/112—Measuring temperature
    • 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)
  • Measurement Of Radiation (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The measuring devices comprises a thermally and electrically conducting rod 7 having a number of regions 9 along its length, each forming a gamma- radiation thermometer. Each region comprises a thermal bridge 8 and a cold source 9 formed respectively by thick and thin sections of the rod 7; gamma- radiation absorbed in the rod causes the temperature of the thicker section to rise relative to that of the thinner one. A pair of thermocouple junctions 14, 15 produce signals representing the temperature difference of the two sections, from which the power produced by the fuel pencils 2 near each gamma- thermometer region is deduced. The area 10 bounded by the optional sheath 7a may be filled with an inert gas or evacuated. <IMAGE>
GB7909545A 1978-03-21 1979-03-19 Device for measuring local power in a nuclesr reactor fuelassembly Expired GB2018421B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/888,881 US4298430A (en) 1977-03-23 1978-03-21 Apparatus for determining the local power generation rate in a nuclear reactor fuel assembly

Publications (2)

Publication Number Publication Date
GB2018421A true GB2018421A (en) 1979-10-17
GB2018421B GB2018421B (en) 1982-12-01

Family

ID=25394096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909545A Expired GB2018421B (en) 1978-03-21 1979-03-19 Device for measuring local power in a nuclesr reactor fuelassembly

Country Status (9)

Country Link
JP (1) JPS54158591A (en)
BE (1) BE874866A (en)
DE (1) DE2910927C2 (en)
ES (1) ES478846A1 (en)
FR (1) FR2420827A1 (en)
GB (1) GB2018421B (en)
IT (1) IT1118443B (en)
NO (1) NO148577C (en)
SE (2) SE449040B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470381A1 (en) * 1979-11-23 1981-05-29 Electricite De France Determining local state of fluid in pressure vessel - using thermoelectric heat detector to measure heat exchange coefft.
FR2498765A1 (en) * 1981-01-29 1982-07-30 Electricite De France IMPROVED GAMMA RAY THERMOMETER FOR HIGH PRESSURE ENVIRONMENT
FR2499253A1 (en) * 1981-01-30 1982-08-06 Electricite De France APPARATUS AND METHOD FOR IN SITU CALIBRATION OF GAMMA RAY THERMOMETER IN SERVICE IN A NUCLEAR REACTOR
EP0064008A1 (en) * 1981-04-24 1982-11-03 Electricite De France Device for locally measuring the power in a nuclear reactor
EP0064446A1 (en) * 1981-04-24 1982-11-10 Electricite De France Device for measuring the local power production in a nuclear reactor, and method to calibrate the device
EP0066516A1 (en) * 1981-05-27 1982-12-08 Electricite De France Device for checking the coolant condition in a nuclear reactor
EP0157132A1 (en) * 1984-03-20 1985-10-09 Westinghouse Electric Corporation Reactor monitoring assembly
US9251920B2 (en) 2012-04-11 2016-02-02 Ge-Hitachi Nuclear Energy America Llc In-situ and external nuclear reactor severe accident temperature and water level probes

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4411859A (en) * 1979-06-13 1983-10-25 Scandpower, Inc. Gamma sensor having combined thermal bridge and centering means
US4411858A (en) * 1981-01-30 1983-10-25 Scandpower, Inc. Power performance monitoring system for nuclear reactor fuel core
JPS57146195A (en) * 1981-03-06 1982-09-09 Tokyo Shibaura Electric Co Nuclear reactor power detecting device
US4425297A (en) 1981-06-23 1984-01-10 Scandpower, Inc. Gamma ray thermometer for boiling water reactor
JPS57203996A (en) * 1981-06-10 1982-12-14 Tokyo Shibaura Electric Co Device for monitoring inside of reactor
JPS5851299U (en) * 1981-10-05 1983-04-07 株式会社東芝 Furnace monitoring device
ES2016934B3 (en) * 1986-02-03 1990-12-16 Siemens Ag GAMMA THERMOMETER
JP3462885B2 (en) * 1993-03-11 2003-11-05 株式会社東芝 Reactor power measurement apparatus and method of manufacturing the same
US20130272469A1 (en) * 2012-04-11 2013-10-17 Ge-Hitachi Nuclear Energy Americas Llc Device and method for reactor and containment monitoring
EP3170185B1 (en) * 2014-07-14 2019-02-27 Westinghouse Electric Company Llc Thermo-acoustic nuclear power distribution measurement assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1437184A (en) * 1964-06-16 1966-04-29 Licentia Gmbh Apparatus intended for the measurement of a neutron flux
FR2385187A1 (en) * 1977-03-23 1978-10-20 Electricite De France LOCAL POWER MEASUREMENT DEVICE IN A NUCLEAR REACTOR FUEL ASSEMBLY
US4149932A (en) * 1977-03-25 1979-04-17 Westinghouse Electric Corp. Emergency disconnect means for the manipulator arm of a nuclear reactor vessel inspection apparatus

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470381A1 (en) * 1979-11-23 1981-05-29 Electricite De France Determining local state of fluid in pressure vessel - using thermoelectric heat detector to measure heat exchange coefft.
FR2498765A1 (en) * 1981-01-29 1982-07-30 Electricite De France IMPROVED GAMMA RAY THERMOMETER FOR HIGH PRESSURE ENVIRONMENT
FR2499253A1 (en) * 1981-01-30 1982-08-06 Electricite De France APPARATUS AND METHOD FOR IN SITU CALIBRATION OF GAMMA RAY THERMOMETER IN SERVICE IN A NUCLEAR REACTOR
EP0064008A1 (en) * 1981-04-24 1982-11-03 Electricite De France Device for locally measuring the power in a nuclear reactor
EP0064446A1 (en) * 1981-04-24 1982-11-10 Electricite De France Device for measuring the local power production in a nuclear reactor, and method to calibrate the device
EP0066516A1 (en) * 1981-05-27 1982-12-08 Electricite De France Device for checking the coolant condition in a nuclear reactor
EP0157132A1 (en) * 1984-03-20 1985-10-09 Westinghouse Electric Corporation Reactor monitoring assembly
US4708844A (en) * 1984-03-20 1987-11-24 Westinghouse Electric Corp. Reactor monitoring assembly
US9251920B2 (en) 2012-04-11 2016-02-02 Ge-Hitachi Nuclear Energy America Llc In-situ and external nuclear reactor severe accident temperature and water level probes

Also Published As

Publication number Publication date
JPS6161360B2 (en) 1986-12-25
NO781773L (en) 1979-09-24
FR2420827B1 (en) 1984-12-07
IT1118443B (en) 1986-03-03
SE8401872D0 (en) 1984-04-04
FR2420827A1 (en) 1979-10-19
JPS54158591A (en) 1979-12-14
SE449040B (en) 1987-03-30
DE2910927C2 (en) 1986-05-07
ES478846A1 (en) 1979-12-16
IT7967579A0 (en) 1979-03-20
GB2018421B (en) 1982-12-01
NO148577B (en) 1983-07-25
SE7902418L (en) 1979-09-22
SE458405B (en) 1989-03-20
DE2910927A1 (en) 1979-10-11
BE874866A (en) 1979-07-02
SE8401872L (en) 1984-04-04
NO148577C (en) 1983-11-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee