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Science and Technology of Nuclear Installations
Volume 2019, Article ID 3045897, 5 pages
Research Article

Simulation of the Thermal Conditions of Cask with Fuel Assemblies of BN-350 Reactor for Dry Storage

1Branch Institute of Atomic Energy of RSE NNC RK, Kurchatov 071100, Kazakhstan
2Аltay State Technical University Named after I.I. Polzunov, 656038 Barnaul, Russia

Correspondence should be addressed to Ye. T. Koyanbayev; zk.cnn@lobre

Received 17 October 2018; Revised 22 January 2019; Accepted 27 January 2019; Published 11 April 2019

Academic Editor: Michael I. Ojovan

Copyright © 2019 Ye. T. Koyanbayev et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The analysis of the thermal condition of spent FA (fuel assembly) of BN-350 reactor in a six-place cask for dry storage is presented. Simulation of the thermal condition of the cask is conducted with finite elements method using ANSYS software. Calculations of fuel temperature, fuel cladding, and assembly structural elements are the part of the safety analysis for storage of spent FA. In conclusion, the results of the thermal calculations in the cases of filling cask with argon and atmospheric air are given when the thickness of the insulation cask with concrete is 0.5 and 1 m. As a result of the calculated studies, the parameters of SNF (spent nuclear fuel) storage are determined, under which the fuel temperatures will have minimum and maximum values.