tailieunhanh - A review of existing SuperCritical Water reactor concepts, safety analysis codes and safety characteristics

SuperCritical Water Reactor(SCWR) applies water beyond the thermodynamic critical point as the coolant, which aims to achieve high efficiency around 45% compared to 33% for existing commercial light water reactors. | Progress in Nuclear Energy 153 2022 104409 Contents lists available at ScienceDirect Progress in Nuclear Energy journal homepage locate pnucene Review A review of existing SuperCritical Water reactor concepts safety analysis codes and safety characteristics Pan Wu a Yanhao Ren a Min Feng a Jianqiang Shan a b Yanping Huang c Wen Yang c a School of Nuclear Science and Technology Xi an Jiaotong University No. 28 Xianning West Road Xi an Shaanxi China b The State Key Laboratory of Multiphase Flow in Power Engineering Xi an Jiaotong University Xi an 710049 China c Nuclear Power Institute of China Cheng Du 610000 China A R T I C L E I N F O A B S T R A C T Keywords SuperCritical Water Reactor SCWR applies water beyond the thermodynamic critical point as the coolant which Supercritical water reactor aims to achieve high efficiency around 45 compared to 33 for existing commercial light water reactors. In Safety performance order to raise the reactor operating temperature and reactor criticality the existing SCWR core designs are quite System code development different from those of boiling water reactors or pressurized water reactors which further effect their safety performance and safety system design. A comprehensive review on existing developed SCWR reactor concepts of different countries including pressure-vessel type and pressure-tube type SCWRs as well as thermal fast and mixed spectrum SCWRs is carried out to deeply explain the core design features of SCWR. The development methods of safety analysis tool for SCWR are also summarized to shed a light on the key scientific difficulties and how these problems are solved up to now. All the special techniques applied to enable trans-critical simulations are still unphysical and lack of validation. Moreover the safety characteristics of existing SCWR concepts are discussed. Based on these review work and discussions the research status of SCWR concepts safety analysis tool development and safety .

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