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Science and Technology of Nuclear Installations
Volume 2012 (2012), Article ID 534541, 5 pages
http://dx.doi.org/10.1155/2012/534541
Research Article

Thermal Energetic Reactor with High Reproduction of Fission Materials

Department of Development and Test of Reactor Devices, Institute of Atomic Energy of NNC RK, Kurchatov 071100, Kazakhstan

Received 20 May 2011; Revised 6 September 2011; Accepted 5 December 2011

Academic Editor: Francesc Reventos

Copyright © 2012 Vladimir M. Kotov. 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.

Abstract

Existing thermal reactors are energy production scale limited because of low portion of raw uranium usage. Fast reactors are limited by reprocessing need of huge mass of raw uranium at the initial stage of development. The possibility of development of thermal reactors with high fission materials reproduction, which solves the problem, is discussed here. Neutron losses are decreased, uranium-thorium fuel with artificial fission materials equilibrium regime is used, additional in-core and out-core neutron sources are used for supplying of high fission materials reproduction. Liquid salt reactors can use dynamic loading regime for this purpose. Preferable construction is channel type reactor with heavy water moderator. Good materials for fuel element shells and channel walls are zirconium alloys enriched by 90Zr. Water cooled reactors with usage 12% of raw uranium and liquid metal cooled reactors with usage 25% of raw uranium are discussed. Reactors with additional neutron sources obtain full usage of raw uranium with small additional energy expenses. On the base of thermal reactors with high fission materials reproduction world atomic power engineering development supplying higher power and requiring smaller speed of raw uranium mining, than in the variant with fast reactors, is possible.