The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering

نویسندگان

  • Pierre Sauriol
  • Heping Cui
  • Jamal Chaouki
چکیده

An experimental approach is proposed to investigate the gas-solid structure in the vicinity of a sparger nozzle in a fluidized bed. The local hydrodynamics were studied under injection velocities ranging between 0 and 100 m/s and three orientations. A fiber-optic probe was used to measure the instantaneous local particle holdup near the tip of the sparger nozzle. Under the investigated conditions, the local gas-solid structure was influenced by the nozzle orientation and injection velocity and varied according the measurement position. Four distinct zones were identified from the local particle holdup data, with the boundaries corresponding to characteristic jet lengths. Strong discrepancies were found with existing correlations. Further studies are required to achieve better jet length estimation and dynamic analysis of the gassolid structure.

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تاریخ انتشار 2016