Thermal Evaluation of a Dual Purpose Cask for Bushehr Nuclear Reactor Spent Fuels Under Normal Conditions

Dual purpose cask system is one of the most important developing systems of dry interim storage of nuclear spent fuels. Thermal evaluation of a dual purpose cask designed for transport and interim storage of spent fuels of Bushehr Nuclear Power Plant is carried out as appears in this paper. SolidWorks and ANSYS Workbench 15 are utilized for the modeling and thermal simulation of the cask under normal condition of transport, as well as, normal condition of interim storage, respectively. According to the results, the maximum temperature of the fuel cladding will not exceed the allowed limits and the fuel integrity will be maintainel. Furthermore, the temperatures of the other components are predicted in the range of allowed limits, demonstrating the safety of the cask under the normal conditions based on the IAEA safety standards.