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Bubble Swarm Rise Velocity in Fluidized Beds.

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    0459872 - ÚCHP 2017 RIV GB eng J - Journal Article
    Punčochář, Miroslav - Růžička, Marek - Šimčík, Miroslav
    Bubble Swarm Rise Velocity in Fluidized Beds.
    Chemical Engineering Science. Roč. 152, OCT 2 (2016), s. 84-94. ISSN 0009-2509. E-ISSN 1873-4405
    R&D Projects: GA ČR(CZ) GA15-05534S
    Institutional support: RVO:67985858
    Keywords : bubbling fluidized bed * gas-solid * bubble swarm velocity
    Subject RIV: CI - Industrial Chemistry, Chemical Engineering
    Impact factor: 2.895, year: 2016

    New formulas are suggested for the swarm speed of cap-shaped gas bubbles collectively rising within a gas-solid fluidized bed. Their derivation stems from comparing the added mass of a single bubble and a swarm of bubbles. For different flow conditions, there are different trends in the dependence of the added mass on the bubble concentration (voidage). This variance translates into different predictions of the suggested swarm speed formulas. This difference is explained in terms of the geometrical configuration of bubbles inside the bed.
    Permanent Link: http://hdl.handle.net/11104/0260040

     
    FileDownloadSizeCommentaryVersionAccess
    2016 cap in FB.pdf122 MBPublisher’s postprintrequire
     
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