CORE FLOW RATE MONITORING SYSTEM

PROBLEM TO BE SOLVED: To monitor core flow rate, without being affected by long-term aging change in a reactor pressure vessel and correct and calibrate it, as the need arises. SOLUTION: The system comprises a narrow-band reactor water level detector 11 and a wide-band reactor water level detector 1...

Full description

Saved in:
Bibliographic Details
Main Authors KANEMOTO SHIGERU, ENOMOTO MITSUHIRO, NAMIHIRA HIDEO, FUJII TOSHIHIRO, KONDO TAKAHISA
Format Patent
LanguageEnglish
Published 19.07.2001
Edition7
Subjects
MEASURING
MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL
METERING BY VOLUME
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
TESTING
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To monitor core flow rate, without being affected by long-term aging change in a reactor pressure vessel and correct and calibrate it, as the need arises. SOLUTION: The system comprises a narrow-band reactor water level detector 11 and a wide-band reactor water level detector 12 for respectively detecting the reactor water level in the reactor pressure vessel 1 in a narrow band and a wide band, a differential pressure detector 36 for detecting the difference of the indicated reactor water level detected with the reactor water level detectors 11 and 12, a core flow rate calculation apparatus 38 for calculating a core flow rate equivalent value from the detected differential pressure signal 37 and a reactor state measurement signal 40, having measured the nuclear- thermal hydraulic state in the pressure vessel 1, and a core flow rate monitor 39 for monitoring the obtained core flow rate.
Bibliography:Application Number: JP20000003973