Supercritical carbon dioxide (S-CO_2) Brayton cycle has attracted substantial attention in recent years due to its higher efficiency, simpler cycle layout and lower cost. S-CO_2 Brayton cycle is not only suitable for next generation nuclear reactors, but also considered in other conventional and renewable energy applications including fossil-fueled power plant, ship propulsion, and solar energy system and so on. In 2010, Nuclear Power Institute of China (NPIC) initially started to investigate the concept and some fundamental issues related to S-CO_2 power conversion technology in China. This paper presents recent research and development progress obtained in China including thermodynamic analysis and evaluation, thermohydraulic investigation, code development, and integral test loop design. The research plan in the near future for S-CO_2 power conversion technology in China is also presented.
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