A Basic Study on Fluidized Bed Heat Exchanger with Finned Tube

유동층형(流動層形) 핀관(管) 열교환기(熱交換器)의 열전달특성(熱傳達特性)에 관(關)한 기초적(基礎的) 연구(硏究)

Experiments have been conducted to measure the overall heat transfer coefficient for gas-solid fluidized double pipe heat exchanger with finned tube. The average particle diameters of alumina are used in 0.4, 0.5, 0.6 and 0.9mm. And the effects of average particle diameter, static bed height and flow velocity on overall heat transfer coefficient have been investigated. Also the heat transfer effect of fluidized bed was compared with that of single phase forced convection and that of heat exchanger with smooth tube.