Experimental analysis of fuel mixing patterns in a fluidized bed

Paper in proceeding, 2007

The mixing pattern of a tracer particle which simulates a fuel particle is studied in a cold 2- dimensional fluidized bed with respect to the influence of fluidization velocity, bed height, tracer particle size and air-distributor pressure drop under conditions typical for bubbling fluidized bed boilers as well as the bottom region of circulating fluidized bed boilers. The results show that for all conditions studied, the tracer particle follows a flow pattern structured into horizontally-aligned vortexes.