DOI: 10.55176/2414-1038-2020-2-173-183

Authors & Affiliations

Askhadullin R.Sh., Legkikh A.Yu.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia

Askhadullin R.Sh. – Head of the Laboratory, Cand. Sci. (Tech.), Associate Professor.
Legkikh A.Yu. – Leading Researcher, Cand. Sci. (Tech). Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-41-15; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..


In a lead-bismuth heat carrier, to ensure the conditions for the formation and maintenance of protective oxide films on the surfaces of structural elements in contact with the heat carrier, it is necessary to regulate the dosage of dissolved oxygen into the heat carrier. In the absence of feeding the lead-bismuth heat carrier with dissolved oxygen, the oxidative potential of the heat carrier can decrease to values at which the development of corrosion and erosion processes begins. A solid-phase method for regulating the oxidizing potential in a lead-bismuth heat carrier, which is implemented using mass transfer devices, has been developed and justified at the SSC RF-FEI. The authors of this paper develop various structures of mass transfer devices for use in research installations with lead-bismuth coolant, as well as in advanced reactor installations of the new generation, in which the lead-bismuth melt is considered as a primary coolant. The article presents the results of the development and justification of mass transfer devices that can be used to regulate the oxide potential in the lead-bismuth coolant of a new generation of reactor plants.

oxygen, mass transfer apparatus, lead oxide, oxidative potential, performance, dissolution, calculation, reactor plant, lead-bismuth coolant, solid-phase control method

Article Text (PDF, in Russian)


UDC 621.039.534.6

Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2020, issue 2, 1:15