Heat Transfer between Wall and Fluidized Bed
نویسندگان
چکیده
منابع مشابه
Bed Voidage and Heat Transfer in Non-Newtonian Liquid-Solid Fluidized Bed
The presence of particles in liquid-solid fluidized beds enhances the bed heat transfer, because the movement of the particles leads to an increased turbulence in the system. Moreover, the violent movement of the particles has a positive effect on fouling of the heat transfer surface. The aim of this investigation was to perform systematic measurements of bed voidage and heat transfer coeff...
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We performed experiments to establish the scaling of convective heat transfer at the wall of circulating fluidized beds. In these units, the suspension condenses into clusters separated from the wall by a gas film of order the mean particle diameter. Because of the relatively high solid volume fraction and heat capacity of these clusters, Lints and Glicksman [AIChE Symp. Ser. 89 (1993), pp. 297...
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A computer model for a hot gas-fluidized bed has been developed. The theoretical description is based on a two-fluid model ( TFM) approach in which both phases are considered to be continuous and fully interpenetrating. Local wall-to-bed heattransfer coefficients have been calculated by the simultaneous solution of the TFM conservation of mass, momentum and thermal energy equations. Preliminary...
متن کاملbed voidage and heat transfer in non-newtonian liquid-solid fluidized bed
the presence of particles in liquid-solid fluidized beds enhances the bed heat transfer, because the movement of the particles leads to an increased turbulence in the system. moreover, the violent movement of the particles has a positive effect on fouling of the heat transfer surface. the aim of this investigation was to perform systematic measurements of bed voidage and heat transfer coefficie...
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The purpose of this study is numerical modeling of temperature variation of phases in a two phase regime in fluidized bed dryers including particles belonging to Group D of geldart classification. The mass transfer between phases is not taken into consideration in this modeling which has been assumed in three- dimensional, unsteady, and two-phase regime.To verify the modeling we consider the do...
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1964
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.67.9_1316