Thorium is an element for possible use as nuclear fuel, because of the fertile property of Th-232, which could convert into U-233 after neutron capture and beta decays. However, thorium based fuels have not been successfully implemented, because of the high cost and the higher complexity compared with once-through uranium fuel. Therefore, the focus of this thesis is on thorium for use in tradit...

Current research has identified Duplex pellets as an effective strategy for decreasing the centerline temperature of the fuel. However, before this design can be widely utilized several areas, including fission gas release, need to be better characterized. Therefore, this paper seeks to ascertain the relative difference in fission gas release between a standard solid UO2 reference design and a ...

Abstract The HTR-PM600 high-temperature gas-cooled reactor nuclear power plant is based on the technology of pebble-bed module (HTR-PM) demonstration project. It utilizes proven HTR-PM and steam generator modules with a thermal 250 MW th generation approximately 100 e per module. Six in parallel, connected to turbine, form 600-MW plant. In addition, its system configuration island identical tha...

Spacer grids are one of main components a Pressurized Water Reactor (PWR) fuel assembly. They able to improve heat transfer from rod bundles the water flow by increasing turbulence and mixture this flow. On other hand pressure drop increases because spacer grids. Experimental Computational Fluid Dynamics (CFD) analysis have been used understand how affect This is important thermal-hydraulic per...

Abstract Nuclear power has special safety requirements and must be generated on the premise of nuclear safety. It is necessary to forecast abnormal situation system equipment as soon possible, so we can control accident beforehand prevent risk caused by failure accident. At present, pre-accident method in plant mainly relies subjective experience personnel. In contrast, intelligent forecasting ...