The effect of flowrate of subcooling water on boiling from downward-facing curved surface
- Institute of Physics and Power Engineering, Obninsk (Russian Federation); and others
Experimental results are presented on boiling from downward-facing curved surface. The investigations were carried out at a facility equipped with reactor pressure vessel simulator having the elliptic bottom of 400 mm inside diameter. The molten core (corium) was simulated by lead-bismuth alloy. The cooling of the simulator was produced by forced circulation of water along the annular gap of 16 mm between the pressure vessel and the shell. The results show that maximum heat fluxes for subcooled boiling slowly depend upon the position along the curved wall, and the transition from film boiling to the nucleate one take the origin at the lowermost position ({var_phi} = 0) spreading upon the surface. 14 refs., 7 figs.
- Research Organization:
- American Nuclear Society, La Grange Park, IL (United States)
- OSTI ID:
- 552163
- Report Number(s):
- CONF-970607--Vol.2
- Country of Publication:
- United States
- Language:
- English
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