Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/43129

OpenURL Link
Title
Characterization of the gas pulse frequency, amplitude and velocity in non-steady dense phase pneumatic conveying of powders
Author/Creator
Williams, Kenneth C.;  Jones, Mark G.;  Cenna, Ahmed A.
Institution
The University of Newcastle. Faculty of Engineering & Built Environment, School of Engineering
Description
Current modelling techniques for the prediction of conveying line pressure drop in low velocity dense phase pneumatic conveying are largely based on steady state analyses. Work in this area has been on-going for many years with only marginal improvements in the accuracy of prediction being achieved. Experimental and theoretical investigations undertaken by the authors suggest that the flow mechanisms involved in dense phase conveying are dominated by transient effects rather than those of steady state and are possibly the principal reasons for the limited improvement in accuracy. This paper reports on investigations on the pressure fluctuation behaviour in dense phase pneumatic conveying of powders. The pressure behaviour of the gas flow in the top section of the pipeline was found to exhibit pulsatile oscillations. In particular, the pulse velocity showed variation in magnitude while the frequency of the oscillations rarely exceeded 5 Hz. A wavelet analysis using the Daubechie 4 wavelet found that the amplitude of the oscillations increased along the pipeline. Furthermore, there was significant variation in gas pulse amplitude for different types of particulate material.
Relation
Particuology Vol. 6, Issue 5, p. 301-306
Publisher Link
http://dx.doi.org/10.1016/j.partic.2008.03.007
Date
2008
Publisher
Elsevier
Keyword(s)
pneumatic conveying;  powders;  dense phase;  pulsatile flow;  transient flow
Resource Type
journal article
Identifier
http://hdl.handle.net/1959.13/43129
Identifier
ISSN:1674-2001
Reviewed
Reviewed
10 Visitors 12 Hits 0 Downloads
Save/E-mail Citation
Citation Format
E-mail Address
Subject
"Particuology"
 
OR