Numerical Simulation on Asymmetrical Three-Dimensional Thermal and Hydraulic Characteristics of the Primary Sodium Pool Under the Pump Stuck Accident in CEFR

Tang, Jingling; Lu, Daogang; Liang, Jiangtao; Xiangfeng, Ma; Yizhe, Liu; Shangshang, Ye; Xia, Zihan; Zhang, Yuhao

doi:10.1080/00295639.2020.1834314

Cited by 8 publications

(1 citation statement)

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“…Gao et al (2013) and Su et al (2017) studied the RCP transient performance in primary coolant system during the start-up period and mathematically solved and elucidated the RCP start-up mechanism. Tang et al (2021) carried out transient three-dimensional numerical simulation of CEFR primary circuit pump shaft sticking accident, and obtained three-dimensional thermal hydraulic characteristics of key structures and components during shaft sticking accident. Liu et al (2009) has carried out experimental research on the transient hydraulic characteristics of the RCP during the shutdown and idling process, and found that the instantaneous flow and rotation speed of power failure rapidly decreased, the vibration of bearing seat suddenly increases at the moment of power failure.…”

Section: Introductionmentioning

confidence: 99%

Study on Hydraulic Characteristics of Reactor Coolant Pump Shutdown Transition Process Based on Primary Circuit Closed System

Zhang

et al. 2022

Front. Energy Res.

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According to the structural characteristics of a steam generator and a reactor pressure vessel, the reactor primary circuit system of HPR1000 is simplified to make the reactor coolant pump (RCP) characteristics match the resistance characteristics of the system pipeline, so a simplified model of reactor primary circuit closed system is formed. On this basis, the RCP shutdown accident in a single circuit of the reactor is numerically simulated. Results show that the pressure in the pipeline system has changed greatly compared. The flow rate drops rapidly and decreases to 1.7% of stable operation at 10s. The torque drops sharply to −51.89% of stable operation, and then rises slowly to zero. The pressure at the inlet and outlet of the impeller changes dramatically which leads to the change of blade load and the velocity in the impeller passage decreases gradually. The pressure and velocity in the guide vane continue to decrease.

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Section: Introductionmentioning

confidence: 99%