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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Forces on objects immersed in fluidized beds

Nguyen, Thi Ha January 1977 (has links)
No description available.
2

Bed porosity in a magnetically stabilized liquid-solid fluidized bed

Villers, Frantz 29 January 1998 (has links)
Graduation date: 1998
3

Residence time distribution of solids in a multi-compartment fluidized bed system

Pongsivapai, Pajongwit 14 January 1994 (has links)
In a conventional well-mixed fluidized bed the solids are almost completely mixed and the residence time for individual particles may vary between zero and infinity. For materials especially sensitive to the processing time, a wide distribution of residence time is extremely undesirable. A multi-compartment fluidized bed was proposed to minimize this problem. The two-compartment fluidized bed system was designed and experimentally investigated with positive results. Residence time distributions were measured with glass bead particles of 379 p.m mean diameter size. Tracer particles were colored glass beads which had exactly the same properties as the particles used for bed material. Two theoretical models were proposed to predict the flow behavior of solids through the two-compartment fluidized bed vessel. The results show the solids flow pattern can be described by the axial dispersion plug flow model and the tanks-in-series model. The parameters of both models can be determined by minimizing the sum of the squared differences between experimental data and model predictions curves. The influence of fluidization velocity, diameter of the orifice connecting the two adjacent compartments, and the height of the overflow exit orifice were investigated. The two-compartment fluidized bed can improve the residence time distribution of solids from a single fluidized bed. The residence time distribution of solids was also improved with decreasing fluidizing gas velocity. Orifice diameter and height of the overflow exit orifice did not influence significantly on particles flow in the two-compartment fluidized bed system. However, a solids mass flow through the partition orifice is predicted reasonably well, within moderate range of variance, by equation developed by de Jong (1965) [12]. / Graduation date: 1994
4

Transient studies in fast-fluidized beds /

Sharma, Arun Kumar. January 2000 (has links)
Thesis (Ph. D.)--Lehigh University, 2000. / Includes vita. Includes bibliographical references (leaves 270-286).
5

Gas-solids mixing in incipiently fluizized beds of nonuniform cross-sectional area

Miller, Kalman Joseph, 1940- January 1963 (has links)
No description available.
6

Aerodynamic and drying characteristics of a vibrated fluidized bed

Gupta, Rahul. January 1979 (has links)
No description available.
7

Entrainment of particles from aggregative fluidized beds

George, Safa Edward January 1976 (has links)
No description available.
8

Fluidized bed particle feeder

Chin, Earle J. January 1979 (has links)
No description available.
9

Pressure drops and densities encountered in transporting small particles in a vertical riser

Thomas, Robert James 08 1900 (has links)
No description available.
10

Forces on objects immersed in fluidized beds

Nguyen, Thi Ha January 1977 (has links)
No description available.

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