Aerosol release rate from sodium pool into nitrogen gas; Effects of oxygen and water impurities in Nitrogen gas

Himeno, Yoshiaki; not registered; not registered; Iguchi, Tatsuro*

Sodium leak detection system is now under development for quick detection of a small leak from Monju primary systems. In this development, aerosol release rate from leaked sodium is requied to evaluate the delay time for the detection as well as to determine the lower limit of the detectable aerosol concentration. To meet that requirement, the test under the following conditions was made. This was to determine the aerosol release rate from sodium into innert nitrogen enviroment under the primary cell simulated conditions. [sodium temperature : 200 to 550 $^{circ}$ C] [H $_{2}$ O content in N $_{2}$ : 0.04 to 1.0%] [O $_{2}$ content in N $_{2}$ : 0, 1.5, and 3.0%] [surface area of sodium : 20 and 80 cm $^{2}$ ] The test results revealed that the aerosol release rate is sensitive to the oxygen concentration, but not to the water concentration, and has the same temperature coefficient as the sodium evaporation rate into argon gas.

Language	:	Japanese
Report No.	:	PNC TN941 82-268
Pages	:	14 Pages
Publication Year/Month	:	1982/12
Patent information	:
PDF	:	PNC-TN941-82-268.pdf:0.72MB
Paper URL	:
Keywords	:	no keyword
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Registration No. : GJ0919820272
JAEA Abstracts No. :

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