Abstract
In current work, experiments are performed on a laboratory scale downflow bubble column to quantify the effect of operating conditions (gas and liquid flow rates) on gas holdup and its mixing characteristics. Gamma ray densitometry technique is used to find the radial gas holdup profiles in the various sections of column for different operating conditions. Subsequently, residence time distribution (RTD) experiments through conductivity measurements are conducted and the dispersion coefficients are obtained to quantify the mixing behavior. Finally, comparison of experimental results is done against two-fluid Euler–Euler model developed for the downflow bubble column which is studied experimentally.
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