Design of Lightweight Spent Fuel Transport Casks

HE Yan; LIU Zhaoyang

doi:10.19554/j.cnki.1001-3563.2026.13.005

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (13) : 37-45. DOI: 10.19554/j.cnki.1001-3563.2026.13.005

Special Topic on Radiation Protection and Shielding Technologies for Multiple Scenarios in Complex Radiation Fields

Design of Lightweight Spent Fuel Transport Casks

HE Yan, LIU Zhaoyang^*

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Abstract

The work aims to design a spent fuel transport cask with a multi-layer sandwich structure to solve the problems of heavy weight and low transportation efficiency of spent fuel transport casks. Lightweight design was carried out on the basis of criticality and shielding requirements, with mechanical and thermal requirements as constraints to control the total package mass within the limit. Safety analysis of the cask was conducted through numerical calculation, and the calculation analysis was verified by package drop tests and heat resistance tests. The numerical calculation results of the transport cask were consistent with the test results through test verification. The results show that the safety performance of the transport cask can meet the requirements of GB 11806 for Type B(U)F Category Ⅲ yellow packages, and it can safely transport spent fuel under the condition of meeting the weight limit.

Key words

spent fuel transport cask / lightweight design / mechanical analysis / thermal analysis / verification test

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HE Yan, LIU Zhaoyang. Design of Lightweight Spent Fuel Transport Casks[J]. Packaging Engineering. 2026, 47(13): 37-45 https://doi.org/10.19554/j.cnki.1001-3563.2026.13.005

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