Bed height effects on fluidized bed hydrodynamics

David R. Escudero, Theodore J. Heindel

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

Characterizing the hydrodynamics of a fluidized bed is of vital importance to understand the behavior of these multiphase flow systems. Minimum fluidization velocity and gas holdup are two important factors used to understand the hydrodynamics of a fluidized bed. Experimental studies on the effects of bed height on the minimum fluidization velocity and gas holdup were carried out using a 10.2 cm diameter cylindrical fluidized bed filled with 500-600 μm glass beads. In this study, four different bed height-to-diameter ratios were used: H/D = 0.5, 1, 1.5, and 2. Minimum fluidization velocity was determined for each H/D ratio using pressure drop measurements. Local time-average gas holdup was determined using non-invasive X-ray computed tomography imaging. Results show that minimum fluidization velocity is not affected by the change in bed height, while local gas holdup does appear to be affected by the change in bed height.

Idioma originalInglés
Título de la publicación alojadaASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2010
Páginas2751-2758
Número de páginas8
EdiciónPARTS A, B AND C
DOI
EstadoPublicada - 2010
Publicado de forma externa
EventoASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels - Montreal, QC, Canadá
Duración: 1 ago. 20105 ago. 2010

Serie de la publicación

NombreAmerican Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
NúmeroPARTS A, B AND C
Volumen1
ISSN (versión impresa)0888-8116

Conferencia

ConferenciaASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting, FEDSM 2010 Collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
País/TerritorioCanadá
CiudadMontreal, QC
Período1/08/105/08/10

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