Velocity and mass flow rate profiles of dry powders in a gravity drop conveyor using an electrodynamic tomography system

Describes measurements made on a gravity drop conveyor using two arrays of axially spaced electrodynamic sensors to measure axial velocities close to the wall of the conveyor and velocity profiles both of flowing sand and of plastic beads. The level of correlation obtained using pixels is investigat...

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Bibliographic Details
Published in:Measurement science & technology 1997-04, Vol.8 (4), p.429-436
Main Authors: Green, R G, Rahmat, M F, Dutton, K, Evans, K, Goude, A, Henry, M
Format: Article
Language:English
Subjects:
Applied sciences
Continuous conveyors: mechanical, hydraulic, pneumatic, etc
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
General equipment and techniques
Granular solids
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Material form
Material handling, hoisting. Storage. Packaging
Physics
Rheology
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
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Description
Summary:Describes measurements made on a gravity drop conveyor using two arrays of axially spaced electrodynamic sensors to measure axial velocities close to the wall of the conveyor and velocity profiles both of flowing sand and of plastic beads. The level of correlation obtained using pixels is investigated. The velocity profile is combined with a tomographic concentration profile to estimate the mass flow profile, which is summed over the measurement cross section to estimate the mass flow rate. A calibration of the tomographically determined mass flow rate versus the actual mass flow rate is presented. (Original abstract)
ISSN:0957-0233
1361-6501
DOI:10.1088/0957-0233/8/4/010