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Exploring a non-dimensional varying exponent equation relating minimum spouting velocity to maximum spoutable bed depth

Authors

  • Wei Du,

    1. Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C., Canada V6T 1Z3
    Current affiliation:
    1. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, P.R. China.
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  • Xiaotao Bi,

    1. Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C., Canada V6T 1Z3
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  • Norman Epstein

    Corresponding author
    1. Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C., Canada V6T 1Z3
    • Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C., Canada V6T 1Z3
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Abstract

The equation equation image was critically examined for spouting both in small conical-cylindrical columns (Dc < 0.5 m) and large cone-base or flat-bottom cylindrical columns (Dc ≥ 0.5 m). For small columns, a data base of 36 points with experimental measurements of both Hm and Um(=Ums at H = Hm) afforded some insights into the components of this equation and to the merits of the equation itself. For large columns, in the absence of verifiable methods of predicting Hm, correlation of Ums/Umf as a function of H/Hm, using the available experimental data on Ums, has not been achieved.

Abstract

L'équation equation image a été examinée de manière critique pour le jaillissement dans de petites colonnes coniques et cylindriques, (Dc < 0.5 m) et de larges colonnes cylindriques à base conique ou à fond plat, (Dc ≥ 0.5 m). Pour les petites colonnes, une base de données de 36 points composée des mesures expérimentales de Hm et Um ( = Ums at H = Hm) a permis de mieux comprendre les composantes de cette équation et la qualité de l'équation elle-même. Pour les colonnes plus larges, en l'absence de méthodes vérifiables pour prédire Hm, la corrélation de Ums/Umf en fonction de H/Hm, à l'aide des données expérimentales disponibles sur Um, n'a pu être établie.

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