Background: The steam generator(SG) serves as the primary means for removing the heat generated within the reactor core and is part of the reactor coolant system(RCS) pressure boundary.Purpose: Seismic analysis is required for SG
whose seismic category is Cat.I.Methods: The analysis model of SG is created with moisture separator assembly and tube bundle assembly herein.The seismic analysis is performed with RCS pipe and Reactor Pressure Vessel(RPV).Results: The seismic stress results of SG are obtained.In addition
parameter sensitivities of seismic analysis results are studied
such as the effect of another SG
support
anti-vibration bars(AVBs)
and so on.Our results show that seismic results are sensitive to support and AVBs setting.Conclusions: The guidance and comments on these parameters are summarized for equipment design and analysis
which should be focused on in future new type NPP SG’s research and design.