Abstract
The particle concentration profiles were investigated using an optical fiber probe in a fluidized bed with acoustic assistance. The effects of sound frequency, sound pressure level, and sound wave forms on the particle concentration profiles were researched. Experimental results indicated that the application of an acoustic field could remarkably influence the particle concentration profiles in a fluidized bed. The particle concentration increased with increasing sound pressure level. However, the particle concentration was highest at sound frequency of 150 Hz, and decreased towards both low and high frequency. Compared with Square wave, both Sine wave and Triangle wave can enhance particle concentration in radial and axial profiles.
©2012 Walter de Gruyter GmbH & Co. KG, Berlin/Boston