Global (level swell) and local (WMS–Wire Mesh Sensor) measurements were made on
waters of different purities and air, in a cylindrical laboratory bubble column (2 m tall, 0.127 …

Several techniques have been developed in the past to measure gas and liquid phase
dynamics; however, reported data were mostly gathered individually for either liquid velocity …

In this work, the hydrodynamics of a bubble column with vertical heat exchanger internals in
a narrow bubble column of D i= 0.1 m inner diameter with a clear liquid height of L c= 1.1 m …

Non-uniform flow patterns on distillation trays can result in significant losses in separation
efficiency compared to conditions with straight chordal flow paths. To improve flow pattern …

Bubble column reactors with exothermic reactions are often equipped with dense tube
bundle heat exchangers. While there is some knowledge about the impact of such internals …

In this work, the effect of the sparger design on the hydrodynamic performance in a bubble
column of 0.1 m ID downstream a single (coarse) and multi-orifice (fine) perforated plate …

Due to the complex hydrodynamics of bubble columns, there are currently no reliable
methods for identification of the main transition velocities. In addition, it is not clear, which …

The identification of the main flow regime boundaries in bubble columns is essential since
the degrees of mixing and mass and heat transfer vary with the flow regime. In this work, a …

A new statistical parameter was de ned in order to determine the range of applicability of the
mixing length concept in two bubble columns. Gas holdup time series (60,000 points) were …

The effect of the radial position on the main transition velocities in bubble columns has not
been reported in the literature hitherto. In this paper, the information entropies IE were …