Authors & Affiliations

Budylov E.G., Verbitskiy A.G., Glebov A.P., Trevgoda M.M.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Budylov E.G. – Leading Researcher, Cand. Sci. (Tech.), A.I. Leypunsky Institute for Physics and Power Engineering. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7(484) 399-89-88; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Verbitskiy A.G. – Head of Laboratory, A.I. Leypunsky Institute for Physics and Power Engineering.
Glebov A.P. – Leading Researcher, Cand. Sci. (Tech.), A.I. Leypunsky Institute for Physics and Power Engineering.
Trevgoda M.M. – Leading Researcher, Cand. Sci. (Tech.), A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

Results of calculated researches of geometrical characteristics of reactor core of nuclear power sources (NPS) with electric power from 100 to 1000 kW with step of 100 kW are presented.
There is recommended 12-angle cross-section for reactor cores cooled by the lead-bismuth coolant (LBC) as it provides the least quantity of types of peripheral non-standard cells and high enough degree of approximation of cross-section to the circular, characterized by excess of the described diameter over equivalent on ~3%.
It is shown that application in reactor cores of moderating elements on the basis of zirconium hydride along with fuel elements in the ratio 2:1 has provided a thermal spectrum of neutrons and low enough level of loading 235U.
The sizes of reactor cores are presented: described and equivalent diameters, height, etc., providing placing of necessary quantity of the enriched fuel.
Commercial effectiveness and competitiveness of offered NPS is estimated for a range of electric power from 100 to 1000 kW with step of 100 kW and capital expenses 100-900 million rbl.
The equitable selling price (ETSP) ensuring commercial effectiveness the NPP with NPS and parity relations with the consumer for specified capital costs is defined for each electric power.
Results of estimations of competitiveness are presented in the form of schedules to define: above what electric power and below what of specific capital costs the NPP with NPS becomes competitive relatively of other power source with known the first-cost and the selling price for the electricity.
High level of expenses on the service staff of NPS and of especially small power serve as the basis to offer remote control for the work of group the NPS what will provide decrease of expenses on the service staff. Other reason of application of remote control is that the NPS can be applied in the conditions of adverse for life and health of service staff.
Level of allocations in reserves on the basis of active rules is rather high for NPS of especially low power as it exceeds fuel expenses except for an improbable case of a combination of the least capital costs for greatest from considered capacities NPS.

Keywords
atomic stations of low power, Far North of Russia, active zone, thermal spectrum of neutrons, retarder of zirconium hydride, lead-bismuth coolant, specific capital costs, selling tariff, competitiveness criteria

Article Text (PDF, in Russian)

References

UDC 621.039.524.6+621.039.003

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants", 2017, issue 3, 3:1