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ANALYSIS OF HEAT TRANSFER ON SPENT FUEL DRY CASK DURING SHORT-TERM OPERATIONS
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 Title & Authors
ANALYSIS OF HEAT TRANSFER ON SPENT FUEL DRY CASK DURING SHORT-TERM OPERATIONS
Kim, H.; Lee, D.G.; Kang, G.U.; Cho, C.H.; Kwon, O.J.;
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 Abstract
When spent fuel assemblies from the reactor of nuclear power plants(NPPs) are transported, the assemblies are exposed to short-term operations that can affect the peak cladding temperature of spent fuel assemblies. Therefore, it needs to perform the analysis of heat transfer on spent fuel dry cask during the operation. For 3 dimensional computational fluid dynamnics(CFD) simulation, it is proposed that the short-term operation is divided into three processes: Wet, dry, and vacuum drying condition. The three processes have different heat transfer mode and medium. Metal transportation cask, which is Korea Radioactive Waste Agency(KORAD)`s developing cask, is evaluated by the methods proposed in this work. During working hours, the boiling at wet process does not occur in the cask and the peak cladding temperatures of all processes remain below . The maximum peak cladding temperature is at vacuum drying process and the temperature rise of dry, and vacuum drying process occurs steeply.
 Keywords
Short-term Operations;Spent Fuel;Spent Fuel Dry Cask;Natural Convection;Effective Thermal Conductivity;
 Language
Korean
 Cited by
 References
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