Abstract

The importance of solving issues of increasing energy efficiency and energy saving for the development of the Russian economy was emphasized. The main directions of increasing the energy efficiency of the nuclear power industry (increasing the efficiency of using primary fuel and reducing the shutdown time of the power unit for repair and reloading of nuclear fuel) are highlighted. The importance of route optimization in solving applied problems of nuclear power is updated, in particular, in minimizing the time of nuclear fuel reloading, increasing the utilization factor of the installed capacity of NPP power units. The necessity of periodic reloading of nuclear fuel in reactors has been substantiated. The features of nuclear fuel reloading in thermal and fast neutron reactors are presented. The necessity of using in fast neutron reactors a system for guiding a capture on a fuel assembly using eccentrically located rotary plugs is substantiated. The necessity and importance of optimization of the process of guidance and movement of the overload mechanism in order to reduce the time to stop the power unit is shown. Mathematical models for the mechanisms of reloading fuel assemblies have been built. Time-optimal algorithms for the operation of overload mechanisms with two and three rotating plugs are proposed.

Details

Title
Optimization of refueling times in fast neutron reactors
Author
Tashlykov, O L 1 ; Dolgii, Yu F 2 ; Sesekin, A N 2 

 Department of Nuclear Power Plants and Renewable Energy Source, Ural Federal University, Mira St., 19, Yekaterinburg, 620002, Russia 
 Department of Applied Mathematics and Mechanics, Ural Federal University, Mira St., 19, Yekaterinburg, 620002, Russia; Institute of Mathematics and Mechanics of the Ural Branch of the Russian Academy of Science, S. Kovalevskaya St., 16, Yekaterinburg, 620108, Russia 
Publication year
2021
Publication date
Mar 2021
Publisher
IOP Publishing
ISSN
17578981
e-ISSN
1757899X
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2512962148
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.