Fluid Characteristics of Slugging Fluidized Bed

In a freely slugging gas-solid fluidized bed, slug properties such as slug frequency, slug velocity, vertical slug length and slug spacing were measured by use of an electric capacitance plate and effects of various factors on slug behavior were experimentally investigated. It was shown that the slugging flow pattern was dependent on the type of gas distributor, the height from the bottom, superficial gas velocity and the particle size, but not affected by the bed diameter and the settled bed height. Slug properties were correlated with the operating conditions in the case of the slugging flow pattern having relative regularity.