Overview of CFD simulation methods and thermal hydraulic property for spent nuclear fuel dry storage cask

Abstract

The rapid expansion of the nuclear energy industry is accompanied by a corresponding increase in the production of spent nuclear fuel (SNF). Extensive studies were conducted on dry storage systems (DSS) in response to the increasing requirements for SNF storage. The main objective of this study is to provide a comprehensive overview of the recent advancements in the field of CFD simulation methods and thermal hydraulic property for SNF dry storage casks. Firstly, the design features and operational mechanisms of the dry storage cask are briefly introduced. Secondly, the simulation methods employed by different researchers are explored and summarized. Finally, the research progresses on heat flow and temperature distribution characteristics, backfill materials and long term storage changes are discussed. The conclusion demonstrates that dry storage casks provide a safe, practical and cost-effective solution for meeting the evolving storage requirements of SNF.