Ventilation pattern and heat dissipation characteristics of a vertical dry storage cask for spent nuclear fuel: Wind tunnel experiments and CFD simulations

Yao Hung Wang, Yi Pin Lin, Heui Yung Chang, Chi Ming Lai

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1 Citation (Scopus)

Abstract

In this study, wind tunnel experiments and computational fluid dynamics (CFD) simulations were conducted to observe the channel airflow patterns and heat dissipation characteristics of dry storage casks for spent nuclear fuel. The parameter ranges were as follows: model scale = 1/10, Grashof number (Gr) = 1.0 × 1011, approaching wind angle (θ) = 0° or 45°, and Reynolds number (Re) = 2.6×104-8.0×105. The results show that a wind velocity = 3 m/s (Re = 8 × 104) is a critical condition for the channel airflow pattern inside the cask for cases in which θ = 0°. When θ = 45°, different wind velocities result in similar channel airflow patterns. As the wind velocity increases, the overall average surface temperature of the canister decreases, and the decrease lessens as the wind velocity increases.

Original languageEnglish
Article number108364
JournalAnnals of Nuclear Energy
Volume160
DOIs
Publication statusPublished - 2021 Sep 15

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

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