Measuring fuel mixing under industrial fluidized-bed conditions - A camera-probe based fuel tracking system

摘要

This work presents and applies a camera-based fuel tracking system for quantification of the motion of individual fuel particles at the surface of bubbling fluidized beds operated under hot conditions. In particular a bubbling fluidized bed with a cross section of 1.44 m(2) operated at 800 degrees C is investigated. Mixing of wood pellets and wood chips is investigated by feeding batches of fuel and applying multi particle tracking to the videos recorded by a specially designed camera probe. The influence of the bulk solids cross-flow and fluidization velocity on the mixing of fuel particles is analyzed.