Paper 370 Abstract The condensation of humidity on the particles surface can determine the formation of liquid bridges which increase interparticle forces significantly and leads to transition from free-flowing to cohesive behaviour. The effect of liquid bridges on powder cohesive behaviour has been studied experimentally by means of split and shear cells [1],[2] The increase of the resistance to flow for fluid dynamically suspended powders can be evaluated by means of viscometers assuming a liquidlike character of the fluidized beds. The flow equation gives the most general description of the rheological properties of fluids [3]. A technique to measure the bulk properties of aerated/fluidized materials has been developed [4].
A comparison between bulk powder flow properties and fluidized powder flow properties for glass beads conditioned in humid air
LANDI, GIOVANNA;BARLETTA, Diego;POLETTO, Massimo
2010
Abstract
Paper 370 Abstract The condensation of humidity on the particles surface can determine the formation of liquid bridges which increase interparticle forces significantly and leads to transition from free-flowing to cohesive behaviour. The effect of liquid bridges on powder cohesive behaviour has been studied experimentally by means of split and shear cells [1],[2] The increase of the resistance to flow for fluid dynamically suspended powders can be evaluated by means of viscometers assuming a liquidlike character of the fluidized beds. The flow equation gives the most general description of the rheological properties of fluids [3]. A technique to measure the bulk properties of aerated/fluidized materials has been developed [4].I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
