Bed-to-wall heat transfer characteristics in a circulating fluidized bed

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The bed-to-wall heat transfer coefficients were measured in a circulating fluidized bed of FCC particles (<(d)over bar (p)> = 65 mu m). The effects of gas velocity (1.0-4.0 m/s), solid circulation rate (10-50 kg/m(2)s) and particle suspension density (15-100 kg/m(3)) on the bed-to-wall heat transfer coefficient have been determined in a circulating fluidized bed (0.1 m-ID x 5.3 m-high). The heat transfer coefficient strongly depends on particle suspension density, solid circulation rate, and gas velocity. The axial variation of heat transfer coefficients is a strong function of the axial solid holdup profile in the riser. The obtained heat transfer coefficient in terms of Nusselt number has been correlated with the pertinent dimensionless groups.
Publisher
Springer
Issue Date
1996-09
Article Type
Article
Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.13, no.6, pp.627 - 632

ISSN
0256-1115
URI
http://hdl.handle.net/10203/70372
Appears in Collection
CBE-Journal Papers(저널논문)
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