| 摘要 |
PROBLEM TO BE SOLVED: To automatically calculate a calibration coefficient necessary for calibrating the core flow rate by a core support plate differential pressure measurement method, and to prevent calculation errors due to a human system. SOLUTION: The core flow rate calibration device includes: a data registration means 25 for registering a core flow rate by a pump part differential pressure measurement method about a plurality of operation points of an improved boiling water reactor power generation plant, a core flow rate by the core support plate differential pressure measurement method, a core support plate differential pressure, and the reactor output; a deviation decision means 26 for determining whether the deviation between the core flow rate by the pump part differential pressure measurement method and the core flow rate by the core support plate differential pressure measurement method is within a decision reference value; and a calibration coefficient calculation means 27 for calculating the core support plate differential pressure in an expression for obtaining the core flow rate and the calibration coefficient of the reactor output by the least squares method, respectively, when the deviation is outside the decision reference value. COPYRIGHT: (C)2011,JPO&INPIT |
