Onset of Gas Induction and Power Consumption after Gas Induction in a Stirred-Tank

• Main Authors: Hung-Chyi Chang, 張鴻奇
• Other Authors: Yung-Chien Hsu
• Format: Others
• Language: zh-TW
• Published: 1993
• Online Access: http://ndltd.ncl.edu.tw/handle/44309580301768282510

碩士 === 國立臺灣科技大學 === 化學工程研究所 === 81 === This work seeks to advance the utilization of the gas and to economize pump consumption in the gas-liquid or the gas-liquid- solid reactor. A type of 45six-blade downword impeller turbine was employed and tap water and air were used in this experimental study. The variables of the gas induction include depth and diameter of impeller and the width of the baffle .Dimentionless correlations are pres- sented for the onset of the critical impleller speeds and the power comsumption of the agitators after the gas entrained for single-impeller and double implellers in a stirred-tank respectively. Gas is entrained at higher impeller speeds with increasing the diameter of impeller, but decreas- ing the width of baffles and the depth of impeller .