Abstract
Floating nuclear power plants are affected by sea wind and waves, which will produce various forms of movement, and cause changes in the thermal and hydraulic characteristics of the reactor core and threaten the safety of reactor operation. In response to the R&D and design requirements of floating nuclear power plants, the research progress on the thermal-hydraulic characteristics of reactors under ocean conditions in China are reviewed in this paper. The emphasis is put on flow heat transfer, bubble behavior, flow instability, and critical heat flux under ocean conditions. Research progresses as well as the issues that need to be focused on in the future research are discussed in detail.
Highlights
Promoting the development and utilization of marine resources has become one of the important directions of development at this stage
The understanding of the two-phase flow resistance and boiling heat transfer characteristics under ocean conditions is insufficient, and the related researches are mostly focused on forced circulation, and relatively few researches have been carried out under natural circulation conditions
There are many types of two-phase flow instability and complex influencing factors, coupled with periodic flow fluctuations caused by ocean conditions, will cause complex nonlinear phenomena in the reactor system
Summary
Reviewed by: Yixiang Liao, Helmholtz-Zentrum DresdenRossendorf (HZ), Germany Victor Petrov, University of Michigan, United States. Specialty section: This article was submitted to Nuclear Energy, a section of the journal Frontiers in Energy Research. Floating nuclear power plants are affected by sea wind and waves, which will produce various forms of movement, and cause changes in the thermal and hydraulic characteristics of the reactor core and threaten the safety of reactor operation. In response to the R&D and design requirements of floating nuclear power plants, the research progress on the thermal-hydraulic characteristics of reactors under ocean conditions in China are reviewed in this paper. The emphasis is put on flow heat transfer, bubble behavior, flow instability, and critical heat flux under ocean conditions.
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