With the global warming and sea level rising, it is widely recognized that there is an increasing tendency of typhoon occurrence frequency and intensity. The defenses code against typhoon attacks for nuclear power pla...With the global warming and sea level rising, it is widely recognized that there is an increasing tendency of typhoon occurrence frequency and intensity. The defenses code against typhoon attacks for nuclear power plant should be calibrated because of the increasing threat of typhoon disaster and severe consequences. This paper discusses the probabilistic approach of definitions about ＂probable maximum typhoon＂ and ＂probable maximum storm surge＂ in nuclear safety regulations of China and has made some design code calibrations by use of a newly proposed Double Layer Nested Mtdti-objective Probability Model （DLNMPM）.展开更多
The main technical backgrounds and requirements are introduced with regard to earthquake ground motion design parameters in several domestic and American standards,codes and guides involved in the seismic analysis and...The main technical backgrounds and requirements are introduced with regard to earthquake ground motion design parameters in several domestic and American standards,codes and guides involved in the seismic analysis and design activities of nuclear power plants in China.Based on the research results from site seismic safety evaluation of domestic nuclear power plant projects in the last years,characteristics and differences of site specific design spectra are analyzed in comparison with standard response spectra,and the suitability of standard response spectra for domestic nuclear power plant projects is discussed.展开更多
This article describes the basic conditions of nuclear power plants or projects in China, which have been built up, or under construction, or approved by the State Council. Excellent operating indexes of the existing ...This article describes the basic conditions of nuclear power plants or projects in China, which have been built up, or under construction, or approved by the State Council. Excellent operating indexes of the existing nuclear power plants and the capability of independent design, manufacture, construction and operation are briefly enumerated. There are over thirty nuclear power plant sites in the coastal and inland areas, which have been checked or preevaluated. This proves that a solid foundation for large-scaled development of nuclear power industry has been laid and nuclear power will certainly play an important role in power supply and environment protection of China.展开更多
Uganda principally depends on hydropower for electricity generation. However, expansion of hydropower resources islimited, and with growing population and demand for electricity, the government of Uganda is considerin...Uganda principally depends on hydropower for electricity generation. However, expansion of hydropower resources islimited, and with growing population and demand for electricity, the government of Uganda is considering integration of nuclearpower into its energy mix. With the current and projected grid capacity, SMR （small modular reactor） technology is attractive sincecapacity can be added incrementally. This paper therefore presents results for SMR site selection in Uganda. Starting with twentyregional areas established by the Ugandan government, a site selection process is outlined which uses four levels of screening andranking. First, exclusion criteria including seismicity, volcanic activity, water resources, and transportation distances were applied.This reduced the potential regional areas down to eight. Next, MAUT （multi-attribute utility theory） weighting was assigned to theseeight areas for： （1） distance to large population centers, （2） ease of transportation, and （3） distance to seismically or volcanically activeareas. From this ranking, four regional areas stood out and were then selected. These regions were then compared using variousattributes including access to water and integration with the developing national grid. In the final step, the lead candidate region wassubdivided into subzones to further refine the selection process.展开更多
基金supported by the Nationam Natural Science Foundation of China(Grant No.50679076)Office of State Flood Control and Drought Relief Headquarters of China(Grant No.20060120)
文摘With the global warming and sea level rising, it is widely recognized that there is an increasing tendency of typhoon occurrence frequency and intensity. The defenses code against typhoon attacks for nuclear power plant should be calibrated because of the increasing threat of typhoon disaster and severe consequences. This paper discusses the probabilistic approach of definitions about ＂probable maximum typhoon＂ and ＂probable maximum storm surge＂ in nuclear safety regulations of China and has made some design code calibrations by use of a newly proposed Double Layer Nested Mtdti-objective Probability Model （DLNMPM）.
基金funded by the Basic Science Research Foundation of IEM(Grant No.2006A02)the National Natural Sciences Foundation of China (90715038)
文摘The main technical backgrounds and requirements are introduced with regard to earthquake ground motion design parameters in several domestic and American standards,codes and guides involved in the seismic analysis and design activities of nuclear power plants in China.Based on the research results from site seismic safety evaluation of domestic nuclear power plant projects in the last years,characteristics and differences of site specific design spectra are analyzed in comparison with standard response spectra,and the suitability of standard response spectra for domestic nuclear power plant projects is discussed.
文摘This article describes the basic conditions of nuclear power plants or projects in China, which have been built up, or under construction, or approved by the State Council. Excellent operating indexes of the existing nuclear power plants and the capability of independent design, manufacture, construction and operation are briefly enumerated. There are over thirty nuclear power plant sites in the coastal and inland areas, which have been checked or preevaluated. This proves that a solid foundation for large-scaled development of nuclear power industry has been laid and nuclear power will certainly play an important role in power supply and environment protection of China.
文摘Uganda principally depends on hydropower for electricity generation. However, expansion of hydropower resources islimited, and with growing population and demand for electricity, the government of Uganda is considering integration of nuclearpower into its energy mix. With the current and projected grid capacity, SMR （small modular reactor） technology is attractive sincecapacity can be added incrementally. This paper therefore presents results for SMR site selection in Uganda. Starting with twentyregional areas established by the Ugandan government, a site selection process is outlined which uses four levels of screening andranking. First, exclusion criteria including seismicity, volcanic activity, water resources, and transportation distances were applied.This reduced the potential regional areas down to eight. Next, MAUT （multi-attribute utility theory） weighting was assigned to theseeight areas for： （1） distance to large population centers, （2） ease of transportation, and （3） distance to seismically or volcanically activeareas. From this ranking, four regional areas stood out and were then selected. These regions were then compared using variousattributes including access to water and integration with the developing national grid. In the final step, the lead candidate region wassubdivided into subzones to further refine the selection process.
