Results 141 to 150 of about 569 (182)
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SPOUTED AND SPOUT-FLUIDIZED BEDS FOR GRAM DRYING
Drying Technology, 1989ABTRACT The objectives of this work are to analyze the drying performance of conical-cylindrical spouted bed (CSB) dryers for three different grains (rice, corn and wheat), and to compare the drying efficiency of CSB dryers with that of spout-fluid bed (SFB) dryers.
Maria L. Passos, +3 more
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Interactions of spout jets in a multiple‐spouted bed
The Canadian Journal of Chemical Engineering, 2013A three‐dimensional (3D) computational fluid dynamics (CFD) model, coupling with two‐fluid model (TFM) approach is adopted to investigate the interactions of spout jets and to evaluate the effects of baffles in a multiple‐spouted bed. For two typical flow patterns, that is single spouting and double‐spouting, characteristics of flow patterns, solid ...
Dailin Chen +4 more
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Chemical Engineering & Technology, 2003
Spouted beds are commonly thought of as being solely of use for processes involving coarse particles (of the order of 1 mm and above). The latest advances on conical spouted beds are discussed in this review. This contact method is especially useful for applications where a vigorous movement of the solid is required, for example, in the handling of ...
M. Olazar +3 more
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Spouted beds are commonly thought of as being solely of use for processes involving coarse particles (of the order of 1 mm and above). The latest advances on conical spouted beds are discussed in this review. This contact method is especially useful for applications where a vigorous movement of the solid is required, for example, in the handling of ...
M. Olazar +3 more
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Local Bed Voidage in Spouted Beds
Industrial & Engineering Chemistry Research, 2000The effect of operating conditions (base angle, gas inlet diameter, stagnant bed height, particle diameter, and gas velocity) on longitudinal and radial profiles of bed voidage has been studied in the spout, annulus, and both the fountain core and periphery of spouted beds, by means of an optical fiber probe.
Martin Olazar +4 more
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Numerical and experimental study on spout elevation in spout‐fluidized beds
AIChE Journal, 2011AbstractThe effect of elevating the spout on the dynamics of a spout‐fluidized bed, both numerically and experimentally is studied. The experiments were conducted in a pseudo‐two‐dimensional (2‐D) and a cylindrical three dimensional (3‐D) spout‐fluidized bed, where positron emission particle tracking (PEPT) and particle image velocimetry (PIV) were ...
Buijtenen, van, M.S. +5 more
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Coal combustion in spouted and spout-fluid beds
2010This study of coal combustion was carried out in a half-column spout-fluid bed combustor, in which Forestberg coal, a sub-bituminous Alberta coal, was burned in inert beds of sand. The combustor consists of a half cylindrical stainless steel column of 0.152 m I. D.
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Spouting behaviour of binary mixtures in square-based spouted beds
Particuology, 2019Abstract From experiments, the influence of the physical characteristics of different binary mixtures of solids on the spouting regime of a pyramidal square-based spouted bed reactor is assessed. The applied methodology permits a more precise evaluation of the effects of the tested variables (diameter, density, sphericity) on the response variables ...
Moliner, Cristina +5 more
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Spouted bed and spout‐fluid bed behaviour in a column of diameter 0.91 m
The Canadian Journal of Chemical Engineering, 1992AbstractHydrodynamic measurements were obtained in a half‐column of diameter 0.91 m equipped with a conical base using particles of diameter 3.3 to 6.7mm with operation both as pure spouted beds and in the spout‐fluid bed mode. Comparison of the experimental results for minimum spouting velocity with equations in the literature generally gave ...
Y‐L. He, C. J. Lim, J. R. Grace
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The Canadian Journal of Chemical Engineering, 1962
AbstractThe first commercial spouted bed driers have been installed in Canada and one has been used to dry three types of peas, lentils and flax. The data obtained from this drier have been compared and correlated with previous drying studies in various laboratory spouted bed driers.
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AbstractThe first commercial spouted bed driers have been installed in Canada and one has been used to dry three types of peas, lentils and flax. The data obtained from this drier have been compared and correlated with previous drying studies in various laboratory spouted bed driers.
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Determination of Minimum Spouting Velocities in Conical Spouted Beds
The Canadian Journal of Chemical Engineering, 2004AbstractMinimum spouting velocities in conical spouted beds have been obtained from pressure drops versus the superficial gas velocity curves, based on both increasing and decreasing the superficial gas velocity. It has been shown that the minimum spouting velocity from decreasing the superficial gas velocity is lower than from increasing the ...
Zhiguo Wang +3 more
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