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Apr 19 – 22, 2022
Vienna, Austria
Europe/Vienna timezone
FR22 starts in Vienna 19 - 22 April 2022 Online Stream: https://event.do/iaea/a/#/events/5048

ON MEASUREMENT OF OXYGEN CONCENTRATION IN SODIUM BY MEANS OF PLUG INDICATOR

Apr 20, 2022, 10:40 AM
2h
Vienna, Austria

Vienna, Austria

POSTER Track 4. Fast Reactor Materials (Coolants, Structures) and Components Poster Session

Speaker

Nikolai Loginov

Description

Possibility of measurement of oxygen concentration in sodium discussed in the papier. Usually by means of the plug indicator “plugging temperature” is measured and supposed it is equal saturation temperature of sodium with impurities. Then, concentration of oxygen is determined using equation for solubility of oxygen in sodium. As a rule, Noden´s equation is used. But solubility of oxygen in sodium depends on presence of other impurities in sodium. So, many equations for solubility of oxygen in sodium exist which are proposed by different authors at different conditions. Now 19 equations are known. Difference of these equations arise ten times and more at the plugging temperature 250-110°C. Authors of the papier have compared these equations and found out that almost all equations comes together at the temperature 558K and gives logarithm of concentration 1,957. As soon as, this point satisfies all equations it can be used for calibration plug indicator and to get equation solubility of oxygen in sodium adequate to real facility and conditions. Using the equation allows to measure oxygen concentration correct.

Country/Int. organization Russian Federation
Speaker's title Mr
Affiliation/Organization JSC “The State Scientific Centre of the Russian Federation – Ins
Speaker's email address loginov@ippe.ru

Primary authors

Nikolai Loginov Mr Valentin Morozov (JSC “The State Scientific Centre of the Russian Federation – Institute of Physics and Power Engineering named after A. I. Leypunsky”)

Presentation materials

Peer reviewing

Paper