Transient Film Boiling of Carbon Tetrachloride and Freon-113 on a Horizontal Cylindrical Surface

This paper presents an experimental and analytical investigation to determine the film growth during the initial regimes of transient film boiling from a horizontal wire for carbon tetrachloride and Freon-113. The wire was subjected to a step change in temperature by a rapid discharge of energy from an electrical capacitor. Constant wire temperature was assumed in the analytical model, and heat transfer through the vapor phase was assumed to be by radiation and conduction. All radiation from the wire was determined to pass through the vapor and to be absorbed in depth within the liquid phase. Convection heat transfer to the liquid pool was considered to take place at the vapor–liquid interface. Heat-transfer rates within the vapor phase were calculated, as was the growth rate of the vapor–liquid interface.