The statistical character of packed-bed heat transport properties
نویسندگان
چکیده
منابع مشابه
The Statistical Character of Packed-bed Heat Transport Properties
Packed beds are essentially heterogeneous on a pellet scale. For random packed beds this heterogeneity causes a statistical character both on a pellet and bed scale. We discuss experimental results which deal with bed-scale statistics. For packed beds on a laboratory scale, the results indicate that the beclscale statistical behaviour introduces a spread up to a factor of three in correlations ...
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Porous media are heterogeneous systems. The microstructures of the pore spaces influence their transport properties. A quantitative geometrical characterization of the pore space is crucial for accurate prediction of porous media transport. Thus, a 3D simulation of porous media was developed based on randomly packed glass beads. Unconsolidated porous media are reconstructed through Monte Carlo ...
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Values were measured for the effective radial, heat conductivity d,, T and the heat transfer coetbcient at the wall CC, in a packed bed. This was done for superficial velocities of 5-70 cm SC’ and at pressures from l-10 bar. Values for i efr, r and rw were obtained by simultaneous fitting of measured axial and radial temperature profiles. The bed diameter was S cm; it was filled with 6.1 mm Ras...
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ژورنال
عنوان ژورنال: Chemical Engineering Science
سال: 1992
ISSN: 0009-2509
DOI: 10.1016/0009-2509(92)87012-f