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Thermal-hydraulic Analysis of Dry Storage Cask of the Spent Nuclear Fuel and Construction of a Prototype Experimental Setup for its Simulation

Hejazi, Mohammad Ali | 2021

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 54689 (46)
  4. University: Sharif University of Technology
  5. Department: Energy Engineering
  6. Advisor(s): Outokesh, Mohammad; Mousavian, Khalil; Rezaeian, Mahdi
  7. Abstract:
  8. Storage of the spent nuclear fuels is one of the topics of interest in recent years and many researches have been conducted in this field in order to design storage casks for spent nuclear fuels. In this study, thermal-hydraulic analysis of a dry storage cask for Bushehr Nuclear Power Plant spent nuclear fuels is carried out. Geometry of the analyzed cask is taken from a Russian transportation cask TK-13. Drawing of the geometry is achieved with SolidWorks and it’s meshing is completed in Gambit. 3 different cases were considered for cask’s geometry and design: cask without spacers inside, cask with spacers inside, and cask with spacers inside and fins on the outside surface of the cask. Thermal-hydraulic analysis of the cask were carried out for steady-state and normal storage conditions in CFX solver package. Simulation results indicated a weak thermal behavior of the cask in the geometry without spacer and maximum fuel temperature exceeded allowed limits. However, after the addition of spacers and fins in the geometry of the cask, thermal behavior of the cask significantly improved and maximum fuel temperature achieved a proper margin compared to the allowable limits. As a result, spent fuels integrity will be maintained in normal storage conditions
  9. Keywords:
  10. Computational Fluid Dynamics (CFD) ; Bushehr Nuclear Power Plant ; Spent Fuel ; Thermohydraulic Analysis ; Dry Storage Cask ; Solid Work Software

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