Experiments support an improved model for particle transport in fluidized beds.

ABSTRACT: The upwards flow of particles in an Upflow Bubbling Fluidized Bed (UBFB) is studied experimentally and modelled from pressure drop considerations and energy loss equations. For Geldart group A powders tested, the upward solid flux, G _s , in the tube can be expressed in terms of the applied superficial gas velocity, the free fall (terminal) velocity of the particles during their hindered settling, KU _t , the pressure exerted at the base of the conveyor tube, and the tube length. The model expression [Formula: see text] can be used for design purposes, with K, the correction factor for hindered settling of the particles, approximately equal to 0.1 at high G _s -values, but a function of the solids fraction in the upward conveying. The energy efficiency of the

SUBMITTER: Zhang H 

PROVIDER: S-EPMC5579236 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature