HYDRODYNAMICS OF A LOOP-SEAL OPERATED IN A CIRCULATING FLUIDIZED BED: INFLUENCE OF THE OPERATING CONDITIONS ON GAS AND SOLID FLOW PATTERNS

摘要

Hydrodynamic features of a loop-seal operated as solids re-injection device in a lab-scale cold CFB apparatus are studied. Gas flow patterns are characterized by means of gas tracing experiments with continuous injection of CO_2 in the loop-seal chambers. Solids flow patterns are characterized by impulsive injection of dye-coloured particles into the supply chamber, followed by particle tracking.