• 作者： Liou, Ching-Tien; Chang, Sir-Sea; Wu, Ching-Mo
• 中文摘要： 本文探討水-柴油-玻璃珠三相流體化之特性。連續相及分散相分別為水相及油相。文中有探討顆粒大小及流體黏度對壓降及最小流體化速度之影響,結果顯示,在相同顆粒大小,流體黏度愈大或在相同流體黏度,顆粒大小愈小,其最小流體化速度愈小,最小流體化速度之方程式可表示為A/sub r//Re/sub mf/=1/C/sub 2/ Re/sub mf/+2C/sub 1//C/sub 2/其中C/sub 1/=29.63,C/sub 2/=0.0505。文中亦探討油相及水相雷諾數對孔隙度,水相及油相滯留體積之影響,孔隙度對水相或油相雷諾數作圖,可得一直線關係,其方程式可表示為.epsilon.=0.150Re/sub A//sup 0.194/ Re/sub O//sup 0.128/其平均百分誤差為3.8%。結果亦顯示水相滯留體積與水相雷諾數成正比,但與油相雷諾數無關。水相及油相滯留體積分別可表示為.epsilon./sub A/=0.070Re/sub A//sup 0.384/及.epsilon./sub O/=0.144Re/sub A//sup -0.577/ Re/sub O//sup 0.736/,適用範圍為 Re/sub A/=130-400及Re/sub O/=10-120。
• 英文摘要： The characteristics of the three-phase fluidization were determined in the water-kerosene-glass bed system. The continuous phase and the dispersion phase are the aqueous phase and oil phase, respectively. The effects of particle size and fluid viscosity on the pressure drop and the minimum fluidization velocity were studied in this system. The results indicate that the minimum fluidization velocity decreases with the increasing fluid viscosity at the same particle diameter and with the decreasing particle size at the same fluid viscosity. The correlation equation for the minimum fluidization velocity can be expressed as A/sub r/.div.Re/sub mf/=(1.div.C/sub 2/)Re/sub mf/+2C/sub 1/.div. C/sub 2/ where C/sub 1/=29.63 and C/sub 2/=0.0505. The effects of Reynolds number of the oil phase and that of the aqueous phase on the bed porosities, aqueous phase holdup and oil phase holdup are also explored. The plots of bed porosity against the Reynolds number of the oil phase or that of the aqueous phase yield a fairly straight line. The correlation equation for the bed porosity can be shown as .epsilon.=0.150Re/sub A//sup 0.194/Re/sub O//sup 0.128/ where the average percent deviation is 3.8%. The results also imply that the aqueous phase holdup is propotional to the Reynolds number of the aqueous phase, but it is independent of the Reynolds number of the oil phase. The correlation equations for the aqueous phase holdup and the oil phase holdup can be expressed as .epsilon./sub A/=0.070Re/sub A//sup 0.384/ and.epsilon./sub O/=0.144Re/sub A//sup -0.557/Re/sub O//sup 0.736/, respectively, for Re/sub A/=130-400 and Re/sub O/=10-120.
• 中文關鍵字： 三相流體化床; 液-液-固相; 最小流體化速度; 滯留
• 英文關鍵字： Three-Phase Fluidized Bed; Liquid-Liquid-Solid; Minimum Fluidization Velocity; Holdup