The characteristics of gas-solid flow and wall heat transfer in a fluidized bed reactor

Choi, Hang Seok; Meier, Dietrich GND

Numerical study using computational fluid dynamics has been carried out to investigate the heat transfer characteristics of a laboratory fluidized bed reactor. The fluidized bed reactor of vTI (Johann Heinrich von Thünen-Institute)-Institute of Wood Technology and Wood Biology is modeled. For the simulation of multiphase flow and thermal fields, an Eulerian–Eulerian approach is applied. The flow and thermal characteristics of the reactor are fully investigated for the wide range of superficial gas velocities and two different particle diameters. In particular, the contributions of the gas bubble and emulsion phase flows on the wall heat transfer are scrutinized. From the predicted results, it is fully elucidated that particular nearwall bubble motions mainly govern the wall heat transfer

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Choi, Hang Seok / Meier, Dietrich: The characteristics of gas-solid flow and wall heat transfer in a fluidized bed reactor. 2012.

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