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Prediction of minimum spouting velocity of spouted bed by CFD-TFM: Scale-up

Authors

  • Wenqi Zhong,

    Corresponding author
    • Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, P.R. China
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  • Xuejiao Liu,

    1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, P.R. China
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  • John R. Grace,

    1. Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
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  • Norman Epstein,

    1. Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
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  • Bing Ren,

    1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, P.R. China
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  • Baosheng Jin

    1. Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, P.R. China
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Author to whom correspondence may be addressed.

E-mail address: wqzhong@seu.edu.cn

Abstract

Numerical simulations based on a three-dimensional (3D) Eulerian–Eulerian multiphase model (two-fluid model, TFM) were carried out to study the minimum spouting velocities of scaled up spouted beds. The spouted bed with a diameter of 0.152 m from the experiments of He et al. was scaled up by factors from 2 to 8, resulting in diameters from 0.304 to 1.216 m. The effects of the static bed height, particle diameter, particle density and fluid inlet diameter on the minimum spouting velocity in different size beds were numerically investigated. A new empirical correlation is proposed for predicting the minimum spouting velocity in both small and large beds.

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