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Fluid Dynamics

, Volume 9, Issue 6, pp 882–889 | Cite as

Mass transfer between bubbles and the continuous phase in a fluidized bed of variable cross section

  • Yu. P. Gupalo
  • Yu. S. Ryazantsev
  • Yu. A. Sergeev
Article

Abstract

A study is made of mass transfer in an inhomogeneous fluidized bed whose cross section varies over the height. The field of the liquid phase around a bubble is constructed, conditions are obtained for the existence of a region of closed circulation of the liquid phase, and the boundaries of this region are determined. A solution is given to the problem of convective diffusion of the substance to the region of closed circulation, and the mass-transfer coefficient between a bubble and the continuous phase is determined as a function of the flow parameters. By the same token, the results of [1] are generalized to a fluidized bed of variable cross section. It is shown that in this case the mass transfer is improved.

Keywords

Mass Transfer Liquid Phase Continuous Phase Flow Parameter Closed Circulation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

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    Yu. P. Gupalo, Yu. S. Ryazantsev, and Yu. A. Sergeev, “Mass transfer between bubbles and the continuous phase in a fluidized bed,” Izv. Akad. Nauk SSSR, Mekhan. Zhidk. i Gaza, No. 4 (1973).Google Scholar
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Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • Yu. P. Gupalo
    • 1
  • Yu. S. Ryazantsev
    • 1
  • Yu. A. Sergeev
    • 1
  1. 1.Moscow

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