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Experimental analysis of heat transfer in packed beds with air flow
(2004-07-21)
Heat-transfer studies were carried out in a packed bed of glass beads, cooled by the wall, through which air percolated. Tube-to-particle diameter ratios (D/dp) ranged from 1.8 to 55, while the air mass flux ranged from ...
Experimental analysis of heat transfer in packed beds with air flow
(2004-07-21)
Heat-transfer studies were carried out in a packed bed of glass beads, cooled by the wall, through which air percolated. Tube-to-particle diameter ratios (D/dp) ranged from 1.8 to 55, while the air mass flux ranged from ...
Heterogeneous Two-Region Model for Low-Aspect-Ratio Fixed-Bed Catalytic Reactors. Analysis of Fluid-Convective Contributions
(American Chemical Society, 2014-02-21)
ABSTRACT: A two-region, two-dimensional (2R2D) model aimed at improving the heat transfer description of multitubular catalytic reactors is introduced here. The effects concentrated in the wall thermal resistance (1/hw) ...
Heat transfer in packed beds: experimental evaluation of one-phase water flow
(Brazilian Society of Chemical Engineering, 2004-01-01)
Experimental heat transfer studies were carried out in 50.8 mm diameter packed beds of glass beads percolated by water and heated from the wall. The tube-to-particle diameter ratio (D/d p) ranged from 1.72 to 13.7 and the ...
Heat transfer in packed beds: experimental evaluation of one-phase water flow
(Brazilian Society of Chemical Engineering, 2004-01-01)
Experimental heat transfer studies were carried out in 50.8 mm diameter packed beds of glass beads percolated by water and heated from the wall. The tube-to-particle diameter ratio (D/d p) ranged from 1.72 to 13.7 and the ...
On the Influence of Liquid Distribution on Heat Transfer Parameters in Trickle Bed Systems
(John Wiley & Sons Inc, 2008-05)
The aim of this work is to analyse experimental results on radial heat transfer in a packed bed column with cocurrent downflow of liquid and gas, focused on the influence of radial liquid distribution and column to particle ...
Fluid dynamics of air in a packed bed: velocity profiles and the continuum model assumption
(Brazilian Society of Chemical Engineering, 1999-12-01)
Air flow through packed beds was analyzed experimentally under conditions ranging from those that reinforce the effect of the wall on the void fraction to those that minimize it. The packing was spherical particles, with ...
Fluid dynamics of air in a packed bed: velocity profiles and the continuum model assumption
(Brazilian Society of Chemical Engineering, 1999-12-01)
Air flow through packed beds was analyzed experimentally under conditions ranging from those that reinforce the effect of the wall on the void fraction to those that minimize it. The packing was spherical particles, with ...
Evaluation of structural properties of cylindrical packed beds using numerical simulations and tomographic experiments
(De Gruyter, 2009-12-01)
This contribution is focused on the analysis of the structure of packed beds of spherical particles at relatively low aspect ratios (i.e., particle to tube diameter ratio) as those arising in multitubular fixed bed reactors. ...