Speaker
Mr
Roman Sadovnichiy
(JSC “SSC RF – IPPE”)
Description
Up-to-date technology of lead-based coolants is now founded mainly on the paramount importance of oxygen addition to the coolant assuring corrosion resistance of structural steels.
In the early stage of HLMC technology development, oxygen content was monitored by coolant sampling and analysis. Later on, more efficient methods of control using electrochemical sensors with solid oxygen-conductive electrolyte were developed and tested.
An extensive work is now under way at the SSC RF – IPPE on solid electrolyte sensors for monitoring oxygen content in lead-based liquid metals. Significant R&D work has been done on the development of solid electrolyte sensor design and production technology. The results of sensor design optimization studies are as follows:
- solid electrolyte ceramic sensor (CS) made of the oxide ceramics, which is capable of operating during the long time in the liquid metals at high temperatures under thermal cycle conditions. It has stable conductivity and strength characteristics, as well as thermal stability and low gas permeability;
- various sensor designs devoted for oxygen control in the lead-based liquid metals in facilities with static coolant, experimental loops and full-scale pool reactor systems.
Among the latest developments there is a sensor consisting of several independent detecting elements with various reference electrodes located in one holder.
Country/Int. Organization
Russian Federation, JSC “SSC RF – IPPE”
Primary author
Mr
Roman Sadovnichiy
(JSC “SSC RF – IPPE”)
Co-authors
Mr
Aleksandr Legkikh
(JSC “SSC RF – IPPE”)
Mr
Aleksey Storozhenko
(JSC “SSC RF – IPPE”)
Mr
Andrey Skomorokhov
(JSC “SSC RF – IPPE”)
Mr
Radomir Askhadullin
(JSC “SSC RF – IPPE”)
Mr
Vasiliy Shelemetyev
(JSC “SSC RF – IPPE”)
