Heat Transfer Enhancement by Fluidized Solid Particles in Gas Carrying Evaporation

Abstract

Abstract: Heat transfer characteristics are studied for gas carrying evaporation with fluidized solid
particles in a vertical rectangular conduit. Experimental results show that heat transfer
of gas carrying evaporation is enhanced and the superheat of liquid in contact with heating
surface lowers remarkably by introducing solid particles. Nucleate boiling on the heating
surface is suppressed to a considerable degree. The mechanism of heat transfer enhancement
by fluidized solid particles is analyzed with the consideration of collisions of solid
particles with the boiling vapor bubbles.

Key words: heat transfer, flow boiling, evaporation, gas-liquid-solid three-phase

摘要： Heat transfer characteristics are studied for gas carrying evaporation with fluidized solid
particles in a vertical rectangular conduit. Experimental results show that heat transfer
of gas carrying evaporation is enhanced and the superheat of liquid in contact with heating
surface lowers remarkably by introducing solid particles. Nucleate boiling on the heating
surface is suppressed to a considerable degree. The mechanism of heat transfer enhancement
by fluidized solid particles is analyzed with the consideration of collisions of solid
particles with the boiling vapor bubbles.

关键词: heat transfer;flow boiling;evaporation;gas-liquid-solid three-phase

YU Zhijia, SUN Chengxin, SUN Xiangyu. Heat Transfer Enhancement by Fluidized Solid Particles in Gas Carrying Evaporation[J]. .

于志家, 孙成新, 孙相彧, 刘展红 . 流态化固体颗粒对载气蒸发传热的强化[J]. CIESC Journal.

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