Characteristics of heat transfer of models of core and steam generator surfaces with regulation of impurity content in a loop with lead coolant

• Published in: Atomic energy (New York, N.Y.) Vol. 104; no. 2; pp. 100 - 107
• Main Authors: Beznosov, A. V., Novozhilova, O. O., Molodtsov, A. A., Savinov, S. Yu, Bokova, T. A., Khimich, V. L.
• Format: Journal Article
• Language: English
• Published: Boston Springer US 01-02-2008; Springer; Springer Nature B.V
• Subjects: Average velocity; Boilers; Calibration; Cooling; Hadrons; Heat transfer; Heaters; Heavy Ions; Mass transfer; Nuclear Chemistry; Nuclear Energy; Nuclear engineering; Nuclear Physics; Physics; Physics and Astronomy; Sensors; Studies; Heat Transfer Characteristic; Heat Transfer; Steam Generator; Peclet Number; Nusselt Number
• ISSN: 1063-4258; 1573-8205
• DOI: 10.1007/s10512-008-9011-3

The results of experimental investigations of the heat transfer by lead coolant in the ring-shaped gaps of a circulation loop during monitored and controlled mass transfer and mass exchange of oxygen and impurity are presented. The investigations were performed in a loop with circulation of lead coolant at temperature of 450–550°C, average velocity 0.1–1.5 m/sec, Peclet number 500–6000, and heat flux 50–160 kW/m
2
. The oxygen content in the loop was varied from the value for thermodynamic activity 10
−5
–10
0
to saturation and above with formation of lead oxide deposits on the heat transfer surface. The processes in a non-isothermal liquid metal loop with heating (core) and cooling (steam generator) experimental sections simulate the dependence of the heat transfer characteristics in the loop on the impurity mass transfer.