Modeling of the Thermal Processes in Repository of the Waste Nuclear Fuel with Water for Assessment of Potentially Hazardous Situations

摘要

The thermal-hydraulic processes in the storage of spent nuclear fuel (SNF), which includes a pool of water for storing canisters with spent fuel assemblies (SFA) filled with water, for reliable and safe operation of such storage facilities were modeled and simulated. Mathematical model of the processes was considered, computer programs in the FLEX PDE and SOLIDWORKS platforms were developed, and the results of computational experiments were presented. Analysis of the obtained data may be useful for optimizing the parameters of the technical system under consideration and for determining the critical conditions by water loss in the pool, in the canister or in the basin and in the canister at the same time, which must be taken into account when building the storage systems for SNF and analyzing the potential emergency modes.