Similarity analysis of thermal-fluid flow for thermal testing using scaled-down model of spent fuel storage cask

摘要

The weight of spent nuclear fuel concrete storage casks usually exceeds 100 tons. Therefore, thermal testing of prototype casks is expensive and time consuming. In this study, thermal testing method using a scaled-down model of a storage cask was developed to perform the thermal testing of large-scale storage casks efficiently. Scaling analyses were performed to derive scale ratios between a prototype cask and the scaled-down model. Additionally, thermal analyses were performed on the prototype cask and half-scale model using the obtained scale ratios. The analysis results showed that scale ratios between the prototype cask and half-scale model were conserved well. Thermal tests were performed on the prototype cask and half-scale model. The analysis and test results were in good agreement. The thermal test results confirmed the thermal-fluid flow similarity between the prototype cask and half-scale model. (C) 2020 Elsevier Ltd. All rights reserved.