Abo Bibliothek: Guest

ISSN Online: 2377-424X

ISBN Print: 0-89116-559-2

International Heat Transfer Conference 8
August, 17-22, 1986, San Francisco, USA

EXPERIMENTAL INVESTIGATION OF STEADY AND DESTABILIZED FORCED CONVECTION-FILM BOILING ON A HEMISPHERE USING THE ELECTRICAL CAPACITY METHOD

Get access (open in a dialog) DOI: 10.1615/IHTC8.690
pages 2143-2148

Abstrakt

A new experimental method has been presented tor investigating the stable and unstable (destabilized) forced convection-tilm boiling on a hot hemisphere. These modes of heat transfer are of interest in thermal explosion and MFCI phenomena, particularly during the coarse premixing phase -a precondition tor an effective thermal explosion. The latter is of great concern to the designers of liquid-cooled nuclear reactors. The technique developed is based on the measurements and the detection of the qualitative changes of the electrical capacity - created by the hot surface, the liquid-vapour interface and the intervening vapour. Steady state measurements and forced convection-tilm boiling destabilizations, caused by a pressure pulse or selftriggered, resulting in vapour film collapse or steady state restoration, are presented and discussed, together with the details of the experimental apparatus.