In order to optimize the current technical requirements of M310 unit,i.e.to wait for 24 h after the power increases to the specified power level to perform in-core flux measurement test,so as to further improve the economy of PWR nuclear power plant,a new method for core flux measurement under dynamic xenon conditions is developed based on Bamboo-C,an advanced PWR core physical analysis software independently developed by Xi'an Jiaotong University.Based on the dynamic xenon flux measurement data,the measured values of core power distribution under the condition of balanced xenon were predicted,and the engineering application was verified in the overhaul of Tianwan No.5 unit.The verification results show that the dynamic xenon flux measurement method proposed in this paper can shorten the waiting time of xenon balance to 2 h at a specified power level,and has high prediction accuracy for key physical quantities in the core.
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