EVAPORATION OF SINGLE LIQUID-DROPS IN AN IMMISCIBLE LIQUID AT ELEVATED PRESSURES - EXPERIMENTAL-STUDY WITH N-PENTANE AND R-113 DROPS IN WATER

This study deals with direct contact evaporation of single liquid drops in a stagnant medium of an immiscible liquid under moderately elevated pressures. Experiments have been performed with n-pentane and R 113 drops injected into water under pressures of up to 0.48 MPa. Data obtained have been processed to yield information on parameters of practical importance: the medium height required for complete evaporation of each drop and the instantaneous heat transfer coefficient for which simple correlations are established. Particular attention has been paid to the apparent dependencies of these parameters on the nominal temperature differences as well as on the pressure.