Solid particles were introduced into "gas carrying evaporation(GCE)" in a vertical annulus and heat transfer characteristics of the gas-liquid-solid three-phase GCE was studied experimentally. The experiment was conducted in a vertical annulus constructed with a 30mm diameter electrical heater and a 50mm diameter outer tube. Water was selected as the liquid and air the carrying gas. Solid particles adopted are glass beads of different diameter and titanium particles. Heat transfer of liquid flow boiling was obviously enhanced by the introduction of the carrying gas and solid particles. Heat transfer coefficient increases with increasing carrying gas velocity, solid particle holdup and particle diameter. The mechanism of heat transfer enhancement by the fluidized solid particles is analyzed in the present paper.
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