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Showing 1 to 20 of 62 for “"Fluidized beds"”.
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Gas Fired Fluidized Beds
… theoretical, have been made of gas combustion in fluidized beds. A mathematical model has been developed which gives a qualitative estimation of the bed temperature profiles in the axial direction. The concept of Effective Thermal Conductivity is discussed, and bed conductivities are re-defined …
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Adsorption in Fluidized Beds
Made available in DSpace on 2014-12-05T17:15:24Z (GMT). No. of bitstreams: 1 5801683.pdf: 2365803 bytes, checksum: b4154f67ac876e9bdb8297aaa2b0cc6d (MD5) Previous issue date: 1958
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Reaction Kinetics in Fluidized Beds
Made available in DSpace on 2014-12-05T17:15:14Z (GMT). No. of bitstreams: 1 0010545.pdf: 4728103 bytes, checksum: 605ca5e31d62bfc89d008e54b1de0a67 (MD5) Previous issue date: 1954
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Mass transfer in fluidized beds.
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Visualizing fluidized beds with X-rays
… X-ray stereography, and particle tracking to fluidized beds of glass beads, ground walnut shell, and ground corncob operating with a variety of flow conditions. 3-D local, time-averaged gas holdup is calculated from CT data, while dynamic features are captured by X-ray stereography. The …
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Entrainment of solids from fluidized beds
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Chemical Engineering, 1953.
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Eulerian-Eulerian Modeling of Fluidized Beds
Fluidized bed reactor technology has been widely adopted within the industry as vital component for numerous manufacturing, power generation and gasification processes due to its enhanced mixing characteristics. Computational modeling of fluidized bed hydrodynamics is a significant challenge that …
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The behaviour of freely bubbling fluidized beds
Gas fluidized beds have provided fascinating and infuriating problems for both the academic and industrial engineer. Although fluidization phenomena have been the subject of many hundreds of papers we still cannot dispense with experimentation in order to predict bed behaviour even for relatively …
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The entrainment of solids from fluidized beds
Thesis: B.S., Massachusetts Institute of Technology, Department of Chemical Engineering, 1953
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Numerical Simulation of Liquid-Solid Circulating Fluidized Beds
Liquid-solid circulating fluidized bed (LSCFB) reactors are obtaining extensive attraction in the extraction process of functional proteins from industrial broth. A typical LSCFB is comprised of a riser, a downcomer, a liquid-solid separator, a top solids-return pipe and a bottom solids-return pipe. …
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Hydrodynamics and heat transfer in shallow fluidized beds
The use of shallow fluidized beds for heat exchange has been suggested because they give high bed-to-surface heat transfer rate and require very low bed pressure. However, in comparison with research on deep fluidized beds, only relatively few studies have been devoted to heat transfer in shallow …
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Numerical Modeling and Prediction of Bubbling Fluidized Beds
… velocity and segregation for bubbling fluidized beds. The computational fluid dynamics (CFD) code Multiphase Flow with Interphase eXchange (MFIX) is used to study a two-stage reactor geometry with a binary mixture. MFIX is demonstrated to accurately predict pressure drop versus inlet …
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An experimental investigation of convective instabilities in fluidized beds
… the construction and operation of a water fluidized bed in which convective instabilities can be studied quantitatively. The apparatus is made in such a way that bed width, distributor thickness and distributor pressure drop can be varied independently. The apparatus is rectangular with one …
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Hydrodynamic Characterization of 3D Fluidized Beds Using Noninvasive Techniques
<p>Fluidized beds are useful processing systems that are employed by many industries for their relatively unique operating properties. Low pressure drops, uniform temperature distributions, and high heat/mass transfer rates occur through the action of vertical gas injection into a column of solid …
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Some aspects of combustion of coal in fluidized beds
… the mechanism of combustion of carbon in shallow fluidized bed combustors. Burning rates and temp eratures of electrode carbon spheres and burn -out times of hatch charges of char particles were measured experimentally over a wider range of variables than reported hitherto. Bed temperature, …
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Some Aspects of the Performance of Rotating Fluidized Beds
… has been published on how to design a rotating fluidized bed combustor and that most work had concentrated on fluidization conditions. This thesis describes investigations into the design, construction and operation of rotating fluidized bed combustors. Experiments to determine the fluidization …
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Particle-to-wall heat transfer in circulating fluidized beds
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1992.
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Development and testing of scaling laws for fluidized beds
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
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