| 摘要 |
PROBLEM TO BE SOLVED: To provide a core monitor which can realize the control over a core taking into account histories of the boiling transition in fuel assemblies for a boiling water reactor. SOLUTION: The monitor has a boiling transition determination criterion preparation means 9 for preparing a criterion for determining the presence or absence of boiling transition in advance for at least one fuel assembly specified beforehand in the boiling water reactor, a data collection means 6 for collecting data showing the present operating condition of at least one fuel assembly specified beforehand, a boiling transition determination means 10 for determining the presence or absence of the boiling transition in the specified fuel assembly on the basis of the data collected by the means 6 and the criterion obtained by the means 9 and a boiling transition process recording means 11 for recording the process of the boiling transition obtained by the means 10. COPYRIGHT: (C)2005,JPO&NCIPI
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