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ISSN Online: 2377-424X

ISBN Print: 0-89116-299-2

International Heat Transfer Conference 7
September, 6-10, 1982, Munich, Germany

SUBCOOLED FILM BOILING AND THE BEHAVIOR OF VAPOR FILM DN A HORIZONTAL WIRE AND A SPHERE

Get access (open in a dialog) DOI: 10.1615/IHTC7.3960
pages 173-178

Sinopsis

A basic study has been presented on the vapor film behaviors on film boiling from a horizontal wire of platinum and a sphere of stainless steel to stagnant subcooled water. A He-Ne gas laser beam has been applied for measuring the vapor liquid interface motion on film boiling. The film boiling characteristics and the vapor film fluctuations are strongly affected by subcooling temperature, heat flux and pressure. The subcooling temperature effect suppresses the vapor film fluctuations. The minimum film boiling temperature at high subcooling temperature and at atmospheric pressure far exceeds the critical temperature of liquid. From these inspections, the physical mechanism of subcooled film boiling and its relations to quenching phenomena are discussed in detail.