Abstract
This study conducted a numerical simulation of the dry storage system and indoor facility heat transfer problem. Four standard DSS models have been constructed to investigate the thermal performance. The results show a high-temperature difference found on the surfaces between the sealing canister and the cask, indicating a high thermal resistance in the radial direction. It is also found that the boundary conditions of DSS only affect the indoor facility ambient parameters instead of the inside components. The adjacent pitch distance between DSSs does not significantly change the indoor temperature but affects the view factor. However, convection accounts for 90% of the heat transfer, while radiation only contributes less than 4%. Thus, it is not essential to emphasize the indoor DSS arrangement optimization. This is the first time indoor facility DSS simulation offers suggestions and physical insights into DSS heat transfer, which is beneficial to nuclear energy science and technology.
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