Hydrodynamic interaction between a coarse gas-emitting particle and a gas fluidized bed of finer solids (Articolo in rivista)

Type
Label
  • Hydrodynamic interaction between a coarse gas-emitting particle and a gas fluidized bed of finer solids (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/S0032-5910(03)00080-9 (literal)
Alternative label
  • Roberto Solimene, Antonio Marzocchella, Piero Salatino (2003)
    Hydrodynamic interaction between a coarse gas-emitting particle and a gas fluidized bed of finer solids
    in Powder technology (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Roberto Solimene, Antonio Marzocchella, Piero Salatino (literal)
Pagina inizio
  • 79 (literal)
Pagina fine
  • 90 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 133 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Dipartimento di Ingegneria Chimica, Universita` degli Studi di Napoli Federico II Istituto di Ricerche sulla Combustione, C.N.R. P.le Tecchio, 80125 Naples, Italy (literal)
Titolo
  • Hydrodynamic interaction between a coarse gas-emitting particle and a gas fluidized bed of finer solids (literal)
Abstract
  • The paper addresses phenomena associated with the hydrodynamic interaction between a gas-emitting coarse particle and a gas-fluidized bed of finer solids. The study is relevant to segregation of particles undergoing fast decomposition (e.g. solid fuel pyrolysis) in fluidized beds. Hydrodynamic patterns associated with gas-emission from a coarse particle into a gas-fluidized bed have been characterized by means of 2D experiments by simulating the gas-emitting particle as a porous cylinder. Formation of endogenous bubbles around the gas source was highlighted. The momentum exchange between bed solids and the gas-emitting particle was characterized by means of experiments carried out in a cylindrical fluidized bed. The gas-emitting particle was simulated by a porous sphere connected to a gas source and continuously weighed. Gas-emission from the sphere induced momentum transfer from the fluidized suspension to the sphere resulting into a lift force opposed to gravity. Quantitative assessment of the lift force was based on analysis of data obtained with different gas-emitting sphere sizes, gas superficial velocities and flow rates of emitted gas. (literal)
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