FI875587A - FOERFARANDE OCH INSTRUMENT FOER OEVERVAKNING AV KYLFOERHAOLLANDENA I EN LAETTVATTENREAKTOR. - Google Patents

FOERFARANDE OCH INSTRUMENT FOER OEVERVAKNING AV KYLFOERHAOLLANDENA I EN LAETTVATTENREAKTOR. Download PDF

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Publication number
FI875587A
FI875587A FI875587A FI875587A FI875587A FI 875587 A FI875587 A FI 875587A FI 875587 A FI875587 A FI 875587A FI 875587 A FI875587 A FI 875587A FI 875587 A FI875587 A FI 875587A
Authority
FI
Finland
Prior art keywords
resistor
instrument
probe
resistance
power
Prior art date
Application number
FI875587A
Other languages
Finnish (fi)
Other versions
FI87849C (en
FI87849B (en
FI875587A0 (en
Inventor
Kurt Becker
Original Assignee
Kurt Becker
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 Kurt Becker filed Critical Kurt Becker
Priority to FI875587A priority Critical patent/FI87849C/en
Publication of FI875587A0 publication Critical patent/FI875587A0/en
Publication of FI875587A publication Critical patent/FI875587A/en
Application granted granted Critical
Publication of FI87849B publication Critical patent/FI87849B/en
Publication of FI87849C publication Critical patent/FI87849C/en

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Classifications

    • 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
    • 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

  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

An instrument for monitoring cooling conditions in the reactor core of a light-water reactor comprises a probe 2 fitted inside the reactor vessel, which probe is made up of a sleeve 12 made of a material which has long neutron absorption and is also watertight, and a resistor 11 hermetically sealed in the sleeve 12. The resistor 11 is connected to leads 5 for delivery of power. The resistance of the resistor 11 depends on its temperature. The instrument also includes sensors which produce an output signal, dependent on the resistance of resistor 11, when current flows through it. In a first functional condition, the monitoring instrument is used to detect any reduction or loss of the cooling capacity of the cooling medium which surrounds the probe 2. A relatively large amount of power is delivered when the resistor and the delivered power are arranged to correspond to the cooling capacity, so that the heat generated in the resistor as a result of the said delivered power is removed via the cooling medium which surrounds the probe 2. If, however, the cooling capacity drops for any reason, e.g, through an accident causing loss of cooling medium, the temperature in the resistor 11 will rise. Since the resistance of the resistor 11 is strongly dependent on temperature, the resistance will change, and as a result a change also occurs in the output signal produced by the sensors. <IMAGE>
FI875587A 1987-12-18 1987-12-18 Procedures and instruments for monitoring the cooling conditions in a light water reactor FI87849C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI875587A FI87849C (en) 1987-12-18 1987-12-18 Procedures and instruments for monitoring the cooling conditions in a light water reactor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI875587 1987-12-18
FI875587A FI87849C (en) 1987-12-18 1987-12-18 Procedures and instruments for monitoring the cooling conditions in a light water reactor

Publications (4)

Publication Number Publication Date
FI875587A0 FI875587A0 (en) 1987-12-18
FI875587A true FI875587A (en) 1989-06-19
FI87849B FI87849B (en) 1992-11-13
FI87849C FI87849C (en) 1993-02-25

Family

ID=8525581

Family Applications (1)

Application Number Title Priority Date Filing Date
FI875587A FI87849C (en) 1987-12-18 1987-12-18 Procedures and instruments for monitoring the cooling conditions in a light water reactor

Country Status (1)

Country Link
FI (1) FI87849C (en)

Also Published As

Publication number Publication date
FI87849C (en) 1993-02-25
FI87849B (en) 1992-11-13
FI875587A0 (en) 1987-12-18

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: BECKER, KURT