EDN: QYWDUV
Authors & Affiliations
Apalnov E.A., Askhadullin R.Sh., Legkikh A.Yu., Makhova T.V.
A.I. Leypunsky Institute for Physics and Power Engineering, Obninsk, Russia
Askhadullin R.Sh. – Head of the Department, Cand. Sci. (Tech.), associate Professor. Contacts: 1, pl. Bondarenko, Obninsk, Kaluga region, Russia, 249033. Tel.: +7 (484) 399-80-73; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Legkikh A.Yu. – Leading Researcher, Cand. Sci. (Tech.).
Apalnov E.A. – Research Engineer.
Makhova T.V. – Research Engineerg.
Abstract
In a heavy liquid metal coolant (HLMC), to ensure the conditions for the formation and maintenance of protective oxide films on the surfaces of structural steels in contact with the coolant during operation, controlled dosing of dissolved oxygen into the coolant is necessary. In the absence of HLMC recharge with dissolved oxygen, the oxidative potential of the coolant can decrease to values at which the development of corrosion and erosion processes begins. The specialists of IPPE JSC have developed and experimentally substantiated the designs of mass transfer apparatus that allow the implementation of a solid-phase technology for regulating the oxidative potential in HLMC for various installations. The solid-phase technology for regulating the oxidative potential is also a development of the IPPE JSC, which was performed in the period 1988–2000.
Currently, completely different facilities with HLMC are being created and operated, which have different purposes and differ in design, coolant volume, temperatures, and other technical parameters. Regardless of the design and purpose of the facility with HLMC, it is necessary to ensure the conditions of corrosion resistance of steels, which is provided by the oxygen regime maintenance system, the executive device of which is a mass transfer device.
The principle of operation of the mass transfer device and the design are developed for each facility, taking into account its technical features and operating modes. It is not possible to create a universal mass transfer device design that could be used for any facilities only by changing the scale.
The article considers the approaches used to select designs of mass transfer devices for installations with HLMC of various types, taking into account the experience of IPPE JSC in creating these devices.
Keywords
dissolved oxygen, design, mass transfer apparatus, technical parameters, lead oxide, oxidation potential, productivity, dissolution, calculation, reactor facility, heavy liquid metal coolant, solid-phase technology
Article Text (PDF, in Russian)
References
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UDC 621.039.534.6
Problems of Atomic Science and Technology. Series: Nuclear and Reactor Constants, 2024, no. 2, 2:19
