Heat removal during transient processes in nuclear power installations and bench loops cooled by lead and lead-bismuth coolant is studied. It is shown that low-pressure heat-exchange equipment is effective. The studies were conducted in a non-isothermal loop with circulating of lead coolant at 450–500°C, average speed in the narrow section of the gap in longitudinal flow over the heat-exchange surface 0.1–1.05 m/sec, Peclet number 300–3300, and the oxygen thermodynamic activity in lead 1–10–3. The processes occurring in a non-isothermal liquid-metal loop with an experimental heat-exchange section model the dependence of the heat-exchange characteristics on impurity mass transfer in the loop.
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A. V. Beznosov, S. S. Pinaev, A. A. Molodtsov, et al., “Experimental studies of the heat-transfer characteristics of the contact heat exchange of a lead coolant–working body,” At. Energ., 98, No. 3, 182–191 (2005).
A. V. Beznosov, A. A. Molodtsov, A. V. Semenov, et al., “Heat transfer from lead coolant flowing along a pipe,” Izv. Vyssh. Uchebn. Zaved. Yad. Energet., 3, 83–90 (2006).
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Translated from Atomnaya Énergiya, Vol. 121, No. 5, pp. 261–265, November, 2016.
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Beznosov, A.V., Chernysh, A.S., Zudin, A.D. et al. Determination of the Heat-Exchange Characteristics of Low-Pressure Heat-Exchangers for Lead and Lead-Bismuth Cooled Loops. At Energy 121, 334–338 (2017). https://doi.org/10.1007/s10512-017-0207-2
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DOI: https://doi.org/10.1007/s10512-017-0207-2