Studies on advanced water-cooled reactors beyond generation III for power generation |
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Authors: | Cheng Xu |
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Affiliation: | (1) School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China |
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Abstract: | China’s ambitious nuclear power program motivates the country’s nuclear community to develop advanced reactor concepts beyond
generation III to ensure a long-term, stable, and sustainable development of nuclear power. The paper discusses some main
criteria for the selection of future water-cooled reactors by considering the specific Chinese situation. Based on the suggested
selection criteria, two new types of water-cooled reactors are recommended for future Chinese nuclear power generation. The
high conversion pressurized water reactor utilizes the present PWR technology to a large extent. With a conversion ratio of
about 0.95, the fuel utilization is increased about 5 times. This significantly improves the sustainability of fuel resources.
The supercritical water-cooled reactor has favorable features in economics, sustainability and technology availability. It
is a logical extension of the generation III PWR technology in China. The status of international R&D work is reviewed. A
new supercritical water-cooled reactor (SCWR) core structure (the mixed reactor core) and a new fuel assembly design (two-rows
FA) are proposed. The preliminary analysis using a coupled neutron-physics/thermal-hydraulics method is carried out. It shows
good feasibility for the new design proposal. |
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Keywords: | GEN-IV nuclear reactor high conversion PWR supercritical water cooled reactor mixed reactor core |
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