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Volume 9 Issue 2
Apr.  2002
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Ping Wu, Li Wang, Xu Feng,  and Xuezi Ni, Surface-particle-emulsion heat transfer model between fluidized bed and horizontal immersed tube, J. Univ. Sci. Technol. Beijing, 9(2002), No. 2, pp. 99-103.
Cite this article as:
Ping Wu, Li Wang, Xu Feng,  and Xuezi Ni, Surface-particle-emulsion heat transfer model between fluidized bed and horizontal immersed tube, J. Univ. Sci. Technol. Beijing, 9(2002), No. 2, pp. 99-103.
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Metallurgy

Surface-particle-emulsion heat transfer model between fluidized bed and horizontal immersed tube

  • 通讯作者:

    Ping Wu    E-mail: pingwu@sas.ustb.edu.cn

  • A mathematical model, surface-particle-emulsion heat transfer model, is presented by considering voidage variance in emulsion in the vicinity of an immersed surface. Heat transfer near the surface is treated by dispersed particles touching the surface and through the emulsion when the distance from the surface is greater than the diameter of a particle. A film with an adjustable thickness which separates particles from the surface is not introduced in this model.The coverage ratio of particles on the surface is calculated by a stochastic model of particle packing density on a surface. By comparison of theoretical solutions with experimental data from some references, the mathematical model shows better qualitative and quantitative prediction for local heat transfer coefficients around a horizontal immersed tube in a fluidized bed.
  • Metallurgy

    Surface-particle-emulsion heat transfer model between fluidized bed and horizontal immersed tube

    + Author Affiliations
    • A mathematical model, surface-particle-emulsion heat transfer model, is presented by considering voidage variance in emulsion in the vicinity of an immersed surface. Heat transfer near the surface is treated by dispersed particles touching the surface and through the emulsion when the distance from the surface is greater than the diameter of a particle. A film with an adjustable thickness which separates particles from the surface is not introduced in this model.The coverage ratio of particles on the surface is calculated by a stochastic model of particle packing density on a surface. By comparison of theoretical solutions with experimental data from some references, the mathematical model shows better qualitative and quantitative prediction for local heat transfer coefficients around a horizontal immersed tube in a fluidized bed.
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