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The Velocity of Dynamic Waves in Fluidised Beds

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Two Phase Flows and Waves

Abstract

A simple expression for the velocity of dynamic waves in fluidised suspensions that has been derived solely in terms of the equilibrium fluid-particle interaction force parameters, is shown to be in close agreement with direct measurements made under incipient fluidisation conditions; further support is provided by the extensive minimum bubbling point data reported for both gas and liquid fluidised systems and other reported observations of fluidisation quality.

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References

  1. T.B. Anderson and R. Jackson, A fluid mechanical description of fluidised beds - comparison of theory and experiment, Ind. Engng. Fundam., 8 (1969), pp. 137.

    Article  Google Scholar 

  2. J.M. Coulson and J.F. Richardson, Chemical Engineering, 3rd edn, 2, Pergamon Press, Oxford (1978).

    Google Scholar 

  3. M.E. Crowther and J.C. Whitehead, Fluidisation of fine particles at elevated pressure, in Fluidisation, Cambridge University Press, Cambridge (1978), pp. 65–70.

    Google Scholar 

  4. J.M. Dallavalle, Micromeritics, 2nd edn, Pitmans, London (1948).

    Google Scholar 

  5. J.A.H. De Jong and J.F. Nomden, Homogeneous gas-solid fluidisation, Powder Techn, 9 (1974), pp. 91–97.

    Article  Google Scholar 

  6. M.M. El Kaissy and G.M. Homsy, Instability waves and the origin of bubbles in fluidised beds, Int. J. Multiphase Flow, 2 (1976), pp. 379–395.

    Article  MATH  Google Scholar 

  7. P.U. Foscolo and L.G. Gibilaro, A fully predictive criterion for the transition between particulate and aggregate fluidisation, Chem. Engng. Sci., 39 (1984), pp. 1667–1675.

    Article  Google Scholar 

  8. P.U. Foscolo and L.G. Gibilaro, Fluid dynamic stability of fluidised suspensions: the particle bed model, Chem. Engng Sci., 42 (1987), pp. 1489–1500.

    Article  Google Scholar 

  9. D. Geldart, Types of gas fluidisation, Powder Technol., 7 (1973) pp. 285–292.

    Article  Google Scholar 

  10. L.G. Gibilaro, I. Hossain and P.U. Foscolo, Aggregate behaviour of liquid fluidised beds, Can. J. Chem. Engng., 64 (1986), pp. 931–938.

    Article  Google Scholar 

  11. L.G. Gibilaro, R. Di Felice, P.U. Foscolo and S.P. Waldram, Fluidisation quality: a criterion for indeterminate stability, Chem. Engng. J., 37 (1988), pp. 25–33.

    Article  Google Scholar 

  12. L.G. Gibilaro, E. Di Felice and P.U. Foscolo, On the minimum bubbling voidage and the Geldart classification for gas-ffuidised beds, Powder Technol., 56 (1988), pp. 21–29.

    Article  Google Scholar 

  13. L.G. Gibilaro, R. Di Felice, I. Hossain and P.U. Foscolo, The experimental determination of one-dimensional wave velocities in liquid fluidised beds, Chem. Engng. Sci., 44 (1989) pp. 101–107.

    Article  Google Scholar 

  14. N.J. HASSETT, The mechanism of fluidisation, Brit. Chem. Engng., 11 (1961), pp. 777–780.

    Google Scholar 

  15. K.V. Jacob and A.W.Weimer, High-pressure particulate expansion and minimum bubbling of fine carbon powders, AIChE.J., 33 (1987), pp. 1698–1706.

    Article  Google Scholar 

  16. S.N.P. Mutsers and K. Rietema, Gas-solid fluidisation in a centrifugal field. The effect of gravity upon bed expansion, Powder Technol., 18 (1977), pp. 249–256.

    Article  Google Scholar 

  17. P.N. Rowe, A rational explanation for the behaviour of Geldart type A and B powders when fluidised, AIChE. Annual Meeting, Miami Beach, Nov. 2–7 (1985), paper no. 58f.

    Google Scholar 

  18. P.L. Slis, TH.W. Willemse and H. Kramers, The response of the level of a liquid fluidised bed to a sudden change in the ffuidising velocity, Appl. Sci. Res., A8 (1959), pp. 209–217.

    Article  Google Scholar 

  19. G.B. Wallis, One-dimensional waves in two-component flow (with particular reference to the stability of fluidised beds), United Kingdom Atomic Energy Authority, Report AEEW-R162 (1962).

    Google Scholar 

  20. G.B. Wallis, One-dimensional two-phase flow, McGraw-Hill, New York (1979).

    Google Scholar 

  21. R.H. Wilhelm and M. Kwauk, Fluidisation of solid particles, Chem. Engng. Prog., 44 (1948), pp. 201–218.

    Google Scholar 

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© 1990 Springer-Verlag New York Inc.

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Gibilaro, L., Foscolo, P., Di Felice, R. (1990). The Velocity of Dynamic Waves in Fluidised Beds. In: Joseph, D.D., Schaeffer, D.G. (eds) Two Phase Flows and Waves. The IMA Volumes in Mathematics and Its Applications, vol 26. Springer, New York, NY. https://doi.org/10.1007/978-1-4613-9022-0_4

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  • DOI: https://doi.org/10.1007/978-1-4613-9022-0_4

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4613-9024-4

  • Online ISBN: 978-1-4613-9022-0

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