- Title
- Industrial applications of pneumatic conveying models
- Creator
- Williams, K. C.; Jones, M. G.
- Relation
- Innovation in Bulk Materials Handling & Processing 2008. Innovation in Bulk Materials Handling & Processing 2008 Conference (Sydney 26-27 November, 2008)
- Relation
- http://www.informa.com.au/conferences/transport/logistics/bulk-materials
- Publisher
- Informa
- Resource Type
- conference paper
- Date
- 2008
- Description
- Determining the internal structure of material flow within a particulate system can provide important physical information of the flow process, however currently there is limited instruments provide this capability. However, recent research work has shown that Electrical Capacitance Tomography (ECT) can provide a non-invasive imaging capability for multiphase flows. This capability is achieved through detection of different dielectric permittivity levels obtained from the various particle concentration levels. This paper represents the ECT analysis on the dense flows of a flyash powder within a 53mm ID pneumatic conveying pipeline. A twin plane, 12 electrode ECT system was used in the experiments. The twin plane ECT system provided a pixel resolution of approximately 1.5 mm which was able to provide important information on the internal structure of the particulate flow, with the twin planes providing a velocity determination capability. Images of material pulse events were captured with analysis indicating that material expansion also occurred due to particle migration during the growth and decay of the pulses. Analysis of bulk density levels between 850 to 70 kg/m³ showed decreasing density structure from the bottom to the top of the pipe. The particulate velocity distribution across the pulse exhibited increasing material velocity for less dense bulk density levels.
- Subject
- particulate systems; material flow; Electrical Capacitance Tomography; bulk density levels; material velocity
- Identifier
- uon:5923
- Identifier
- http://hdl.handle.net/1959.13/44934
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