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Advanced Course in Heat Transfer in Nuclear Reactor Safety
September, 1-5, 1980, Dubrovnik, Yugoslavia

DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf


ISBN Print: 978-0-89116-223-0

5.3 An Experimental Investigation of Natural Convection Heat Transfer from Downward-facing Surfaces in Sodium for Fast Reactor Internal Core Catchers

pages 851-865
DOI: 10.1615/ICHMT.1982.AdvCourHeatTransfNucReactSaf.550
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RÉSUMÉ

The design of internal core debris catchers for sodium-cooled fast reactors requires a knowledge of the natural convection heat transfer coefficient from a downward-facing surface. This paper describes the Sodium Natural Convection (SONAC) Experiment for studying natural convection to sodium from a flat heater plate which can be inclined from the vertical to the horizontal with the heat flux in a downward direction. The experiment consists of an electrically heated plate, 316mm long and 300mm wide, immersed in a sodium pool, 690mm long, 300mm wide and 600mm deep; the latter is cooled externally by a highly rated air cooler. Experiments are reported for a uniform heat flux from the heater plate in a horizontal position and also inclined at 15 degrees to the horizontal.

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