Results 181 to 190 of about 8,155 (206)
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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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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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2010
Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all ...
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Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all ...
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1974
Publisher Summary The full benefits of fluidization, although with coarse and uniform-sized particles, are not always realized because of the growth of large bubbles in the bed causing a tendency toward slugging. This limitation of fluidized beds can be overcome if the gas enters the bed through a small opening at the center of a conical base instead
Kishan B. Mathur, Norman Epstein
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Publisher Summary The full benefits of fluidization, although with coarse and uniform-sized particles, are not always realized because of the growth of large bubbles in the bed causing a tendency toward slugging. This limitation of fluidized beds can be overcome if the gas enters the bed through a small opening at the center of a conical base instead
Kishan B. Mathur, Norman Epstein
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Local Bed Voidage in Conical Spouted Beds
Industrial & Engineering Chemistry Research, 1998Local bed voidages have been experimentally determined by means of an optical fiber probe in conical spouted beds of different geometry (angle, inlet diameter) and working under different operating conditions (particle diameter, stagnant bed height, and air velocity).
María J. San José +3 more
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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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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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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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Fountain confined conical spouted beds
Powder Technology, 2017Abstract Particle entrainment is a serious problem in spouted bed contactors when operation is carried out using beds made up of ultrafine particles, irregular ones and fine and coarse particle mixtures. Accordingly, the conventional conical spouted bed has been modified by inserting a fountain confiner in the contactor, and a study has been carried ...
Haritz Altzibar +6 more
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Coal combustion in spouted and spout-fluid beds
1986This 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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