Discussion on Main Parameter Design of Small Modular Pressurized Water Reactors

Abstract: [Background] Small Modular Reactors (SMRs) are poised to play an increasingly significant role in the future development of nuclear energy. Among various types of SMRs, Small Modular Pressurized Water Reactors (SMPWRs) are emerging as a particularly promising technology due to their well-established operational experience and adaptability to diverse applications. [Purpose] This study aims to focus on the overall design scheme and main parameter design of SMPWRs. It systematically summarizes the design methodologies for the reactor core, the reactor coolant system, and the steam-side parameters. [Methods] The research employs a comprehensive approach, integrating theoretical analysis and simulation modeling. It proposes a potential main parameter design scheme for a natural circulation SMPWR based on established design methodologies. The feasibility of this design is then validated through simulation modeling. [Results] The proposed natural circulation SMPWR design demonstrates a feasible and efficient approach to achieving the desired operational parameters. The simulation results confirm the viability of the design, highlighting its potential for practical application. [Conclusions] The proposed design and methodologies can serve as a foundation for further research and development in this promising area of nuclear energy technology.