ISSN Online: 2377-424X
ISBN Print: 0-89116-559-2
International Heat Transfer Conference 8
AN EXAMINATION OF THE WALL TEMPERATURE DROP PHENOMENON DURING APPROACH TO FLOW BOILING CRISIS
Sinopsis
Al though not widely reported, annular flow dryouts are often preceded by a reduction in wall superheat, and a hysteresis effect becomes evident on reducing the heat flux. A theoretical model is proposed to explain these phenomena. This model postulates a nucleate boiling sublayer in the liquid film which undergoes structural change as dryout is approached, and it is used to develop a heat transfer equation which is shown to be consistent with available data.