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Engineering Conferences International Symposium Series

May 13-17, 2007 - Vancouver, Canada

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The Fluidization Pattern of Density-Segregating Two-Solid Beds Bruno Formisani, Università di Calabria, Italy Rossella Girimonte, Università di Calabria, Italy Tiziana Longo, Università di Calabria, Italy ABSTRACT: An experimental work is presented meant to clarify the specific role played by density differences between components in the segregating fluidization process of two-solid beds. The overall behaviour of such systems is characterized by substituting the traditional concept of “minimum fluidization velocity” of the binary mixture with the “velocity interval of fluidization” of the bed, which is limited by its “initial” and “final” fluidization velocity”. The dependence of these characteristic velocities on parameters such as component densities and mixture composition is illustrated by several series of experiments. The experimental results are analysed in the light of the fundamental theory, so as to establish quantitative relationships for their prediction. The evolution of the axial profile of component concentration at varying fluidization velocity is also discussed. Bruno Formisani, Rossella Girimonte, and Tiziana Longo, "The Fluidization Pattern of Density-Segregating Two-Solid Beds" in "The 12th International Conference on Fluidization - New Horizons in Fluidization Engineering", Franco Berruti, The University of Western Ontario, London, Canada Xiaotao (Tony) Bi, The University of British Columbia, Vancouver, Canada Todd Pugsley, University of Saskatchewan, Saskatoon, Saskatchewan, Canada Eds, ECI Symposium Series, Volume RP4 (2007). http://services.bepress.com/eci/fluidization_xii/24

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