EDN: SYUNXO
Authors & Affiliations
Lepehin A.N., Savinovskii A.S., Sorokin S.E., Shkokov M.G., Malkin S.A., Ushatikov A.S.
 Afrikantov Experimental Design Bureau for Mechanical Engineering, Nizhny Novgorod, Russia
 
Lepehin A.N. – Head of Department, Cand. Sci. (Tech.).
Malkin  S.A. – Lead Design Engineer, Cand. Sci. (Tech.).
Ushatikov A.S. – Design Engineer.
Sorokin S.E. – Head of Group.
 Shkokov  M.G. – Lead Design Engineer.
 Savinovskii  A.S. – Lead Design Engineer. Contacts: 15, proezd Burnakovskii, Nizhnyi  Novgorod, Russia, 603074. Tel.: +7(831) 243-99-99, ext. 59-97, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
 
Abstract
The article presents the  description and verification results of algorithms for reconstitution of axial  power fields and the thermahydraulic parameters calculating of the reactor for  the isotope production. The algorithms are designed for axial power fields  control in the core, as well as the subsequent calculation of the temperatures  of cladding of the fuel elements in real time scale. The article presents the  general principles of implementing algorithms, as well as their flow diagrams.  The functioning of the algorithm reconstitution of axial power fields is  provided by collecting information from neutron-physical monitoring sensors of the  in-core monitoring system, data on the position of the operating elements of  the control and protection system, as well as information on the loading of  core channels with irradiated materials. The functioning of the algorithm for  calculating the temperatures of fuel elements claddings and onset of nucleate  boiling ratio in real time is provided by collecting information from the  coolant temperature sensors from different systems. In particular, such  measured parameters are used as coolant temperature at the outlet from core channels,  coolant temperature at the inlet and outlet from the reactor, calculated from  the parameters of the 1st and 2nd loop reactor power  value.
Keywords
vortex  boundary layer, turbulent eddies, shear layer, large eddies, pseudoturbulence,  homogeneous combustion, stochastic dynamics, vortex model, continuous medium,  thermal gas aerodynamics
 Article Text (PDF, in Russian)
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UDC 621.039.51
 Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2025, no. 3, 3:18