Numerical Simulation of the Thermal Performance of a Dry Storage Cask for Spent Nuclear Fuel

Heui-Yung Chang,Chi-Ming Lai,Rong-Horng Chen

doi:10.3390/en11010149

Abstract

In this study, the heat flow characteristics and thermal performance of a dry storage cask were investigated via thermal flow experiments and a computational fluid dynamics (CFD) simulation. The results indicate that there are many inner circulations in the flow channel of the cask (the channel width is 10 cm). These circulations affect the channel airflow efficiency, which in turn affects the heat dissipation of the dry storage cask. The daily operating temperatures at the top concrete lid and the upper locations of the concrete cask are higher than those permitted by the design specification. The installation of the salt particle collection device has a limited negative effect on the thermal dissipation performance of the dry storage cask.

Highlights

Taiwan’s first and second nuclear power plants use boiling water reactors (BWRs) constructed by General Electric Corporation (Boston, MA, USA)
Has a plate-like when the 50-cm SPCD unit is installed in the dry storage cask, its
SPCD has a plate-like configuration, when the 50-cm SPCD unit is installed in the dry storage cask, its rectification-like effect (Figure 2 1⁄4 and Figure 3) increases the average rate of channel airflow

Summary

Introduction

Taiwan’s first and second nuclear power plants use boiling water reactors (BWRs) constructed by General Electric Corporation (Boston, MA, USA). In accordance with the practices abroad, the Taiwan. Power Company (Taipower, Taiwan) built dry storage facilities at its nuclear power plants. After using the nuclear fuel for many years, Taipower removed the spent fuel from the reactor cores, cooled it in pools, and stored the spent fuel in dry storage facilities to ensure that the plants had sufficient space in which to operate. The dry storage facility at nuclear power plant no. The safety review of the dry storage facilities of nuclear power plant no. There are few studies regarding the heat transfer performance of dry spent fuel storage casks The safety review of the dry storage facilities of nuclear power plant no. 2 has been completed.

Methods

Results

Conclusion