Studies on Buoyancy-Induced Circulation and Mixing in Bubble Columns

本研究是气液两相鼓泡塔内浮力驱动流体运动和混合的实验研究。局部流体速度将使用热膜反常测量法测量，局部气体体积分数将使用导电性探头测量。这些测量值将与流体运动的时间平均理论进行比较。将对液体溶质分散进行额外的测量。鼓泡塔是工业上重要的气液接触装置。更好地了解这些设备中的流体运动应该有助于改进吸收塔、汽提塔或涉及气液接触的发酵罐的设计。

This research is an experimental study of buoyancy driven fluid motion and mixing in liquid-gas bubble columns. Local fluid velocities would be measured using hot film anomometry, and local gas volume fractions would be measured using a conductivity probe. These measurements would be compared to a time-averaged theory for the fluid motion. Additional measurements of liquid solute dispersion would be made. Bubble columns are industrially important gas-liquid contacting devices. Better understanding of the fluid motion in these devices should lead to improved design of absorbers, strippers, or fermenters involving gas-liquid contacting.