Specifications
Vibrations
- Independent variation of amplitude and frequency
- Vertical vibration frequency range: 7.5 to 50 Hz
- Amplitude range: 1 to 10 mm
Overview
- Cast acrylic columns with variable inner diameters
- Water box around column for flow visualization
- Single and dispersed air injection
Description
The vibrating bubble column (VBC) is comprised of a batch bubble column mounted on a shaker table. The shaker table provides a vertical oscillation via an eccentric drive mechanism with an adjustable cam-arm linkage, which allows the amplitude to be varied from 1–10 mm independent of vibration frequency. The shaker was powered by a three-phase, 2.2 kW (3 HP) motor (00336ES3EF56C, WEG). The frequency was controlled with variable frequency drive (ATV12HU22M2, Schneider Electric), which could be varied from 7.5 to 50 Hz.
Documentation
S Mohagheghian & BR Elbing (2018) “Characterization of bubble size distribution within a bubble column,” Fluids, 3(1), 13 (doi.org/10.3390/fluids3010013).
S Mohagheghian, AL Still, BR Elbing & AJ Ghajar (2018) “Study of bubble size, void fraction, and mass transport in a bubble column under high amplitude vibration,” ChemEngineering, 2(2), 16 (doi.org/10.3390/chemengineering2020016).
Adam L Still (2012) “Multiphase phenomena in a vibrating column reactor,” M.S. Thesis, Oklahoma State University, Stillwater, OK, USA.
AL Still, AJ Ghajar & TJ O’Hern (2013) “Effect of amplitude on mass transport, void fraction and bubble size in a vertically vibrating liquid-gas bubble column reactor,” Proceedings of the ASME Fluids Engineering Summer Meeting, FEDSM2013-16116, Incline Village, Nevada (July 7-11).
