The Bubbles Breakup and Coalescence Rates in Bubble Columns

Bubble size distribution has important role in bubble columns in point view of available interfacial area for interphase exchange phenomena. The difficulty in determining of bubble size is due to uncertain breakup and coalescence models for using in population balance equations. Variety of mechanism and coefficients for the each of the models prevents to generalize them. Furthermore, measurement of each rate individually is not possible except for single bubble trajectory in transparent systems (mostly air-water dispersions) that some of the existing models based on it. Here, a novel algorithm demonstrated to calculate breakup and coalescence rates using the bubble size distribution, bubble rise velocity, and hold-up profiles along the bubble column.