Authors & Affiliations

Danilenko V.P.1, Elshina N.V.1, Dvornikov P.A.2, Kovtun S.N.2, Kondratovich F.V.2, Kudryayev A.A.2, Lukyanov D.A.2
1 Alexandrov Research Institute of Technoloqy, Sosnovy Bor, Russia
2A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Danilenko V.P. – Lead Engineer, Alexandrov Research Institute of Technoloqy. Contacts: 72, Koporskoe shosse, Sosnovy Bor, Leningrad region, Russia, 188540. Tel.: +7(81369)6-04-48; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Elshina N.V. – Engineer of 1 category, Alexandrov Research Institute of Technoloqy.
Dvornikov P.A. – Deputy Director of OFHT - Head of the Department, A.I. Leypunsky Institute for Physics and Power Engineering.
Kovtun S.N. – Deputy Head of Department, A.I. Leypunsky Institute for Physics and Power Engineering.
Kondratovich F.V. – Lead Engineer, A.I. Leypunsky Institute for Physics and Power Engineering.
Kudryayev A.A. – Deputy Head of the laboratory, A.I. Leypunsky Institute for Physics and Power Engineering.
Lukyanov D.A. – Leading Researcher, A.I. Leypunsky Institute for Physics and Power Engineering.

Abstract

Modern systems for monitoring the thermal state of the fast neutron reactor core are designed for the early detection of cooling disturbances in individual fuel assemblies and operation of the core as a whole.
The report presents a modern core temperature control system for the BN-800 being the part of reactor diagnostics system, as well as the results obtained during the operation of the system at the start-up and pilot operation stages of the power unit.
The statistical estimates of the temperature distributions, spectral characteristics of the neutron-noise and temperature channels are presented for various power levels the reactor was operating. The core diagnostics is provided based on the algorithms for determining diagnostic parameters and their deviations from the “norm” state. The possibility of operational detection of deviations from normal operation by measuring the temperature parameters of the core was confirmed.

Keywords
LMBBR, Temperature Monitoring System, Core, Temperature Fluctuations

Article Text (PDF, in Russian)

References

UDC 621.039.52

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2018, issue 5, 5:11