Experimental Research on the Parameter Affecting on the Characteristics of Secondary Side Residual Heat Removal System

The experimental research has been carried out to investigate the effect of parameters on the characteristics of the secondary side residual heat removal system in for Hua Long Yi Hao using the Emergency Secondary Passive Residual heat removal system Integral Test facility（ESPRIT）. The ESPRIT test facility, experimental working conditions and results are presented in this paper. The experimental results reveal that the PRS is capable of removing the core residual heat in station blackout scenario without staff intervention in 72 hours. The 0.8%FP core heat can be removed with the single PRS series or under the 40%-160% heat exchanger heat transfer area. The liquid level in the steam generator has no significant effect on the system pressure and steam temperature.