Study on Operation Characteristics of Natural Circulation and Forced Circulation in Nuclear Power Plant
Natural circulation is an effective operation mode to improve inherent safety and to provide ability of passive residual heat removal for nuclear power plant. The thermo-hydraulic model and the two-group three-dimension space-time neutron kinetics model for the reactor and reactor coolant system (RCS) of a certain type of nuclear power plant were established in the paper and simulation program based on these models were completed. The transition processes from natural circulation to forced circulation with different initial reactor power and different control conditions were simulated. The results show that the initial reactor power plays an important role in the transition process;high initial reactor power is likely to threaten the safety of transition process. The intervention measure that lifting control rods by operators was presented and was proved effective to improve the safety of the transition process. The results also show that the models are highly precise and can meet the need of engineering analyses.
Natural circulation Transition process Human intervention Nuclear power plant
Tian Zhao-fei Zhao Qiang Peng Min-jun Cheng Shou-yu XUE Ruo-jun
Nuclear science and technology college, Harbin Engineering university, Harbin 150001, China
国际会议
ISSNP2008、CSEPC、ISOFIC2008(第二届21世纪和谐核电系统国际会议、第四届电厂控制中认知系统工程方法国际会议暨第三届未来核电厂仪表与控制国际会议)
哈尔滨
英文
160-166
2008-09-08（万方平台首次上网日期，不代表论文的发表时间）