Determination of the Heat-Exchange Characteristics of Low-Pressure Heat-Exchangers for Lead and Lead-Bismuth Cooled Loops

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 450–5...

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Bibliographic Details
Published in:Atomic energy (New York, N.Y.) N.Y.), 2017-03, Vol.121 (5), p.334-338
Main Authors: Beznosov, A. V., Chernysh, A. S., Zudin, A. D., Bokova, T. A., Novinskii, E. G.
Format: Article
Language:English
Subjects:
Analysis
Bismuth
Coolants
Energy industry
Hadrons
Heat
Heat exchange
Heat exchangers
Heavy Ions
Impurities
Mass transfer
Nuclear Chemistry
Nuclear electric power generation
Nuclear Energy
Nuclear Physics
Nuclear power
Nuclear power plants
Nuclear reactors
Oxygen
Peclet number
Physics
Physics and Astronomy
Pressure
Surface chemistry
Thermodynamics
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Summary: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.
ISSN:1063-4258
1573-8205
DOI:10.1007/s10512-017-0207-2