Velocity measurement of pneumatically conveyed solids using electrodynamic sensors
Yan, Y., Byrne, B., Woodhead, Steve and Coulthard, John M. (1995) Velocity measurement of pneumatically conveyed solids using electrodynamic sensors. Measurement Science and Technology, 6 (5). pp. 515-537. ISSN ISSN 0957-0233 (Print) ISSN 1361-6501 (Online) (doi:10.1088/0957-0233/6/5/013)Full text not available from this repository.
Theoretical and experimental studies of cross correlation techniques applied to non-restrictive velocity measurement of pneumatically conveyed solids using ring-shaped electrodynamic flow sensors are presented. In-depth studies of the electrodynamic sensing mechanism, and also of the spatial sensitivity and spatial filtering properties of the sensor are included, together with their relationships to measurement accuracy and the effects of solids' velocity profiles. The experimental evaluation of a 53 mm bore sensing head is described, including trials using a calibrated pneumatic conveyor circulating pulverized fuel and cement. Comparisons of test results with the mathematical models of the sensor are used to identify important aspects of the instrument design. Off-line test results obtained using gravity-fed solids flow show that the system repeatability is within +/-0.5% over the velocity range of 2-4 m s(-1) for volumetric concentrations of solids no greater than 0.2%. Results obtained in the pilot-plant trials demonstrate that the system is capable of achieving repeatability better than +/-2% and linearity within +/-2% over the velocity range 20-40 m s(-1) for volumetric concentrations of solids in the range 0.01-0.44%.
|Uncontrolled Keywords:||velocity measurement, pneumatically conveyed solids, electrodynamic sensors,|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)|
|School / Department / Research Groups:||School of Engineering > Internet Security Research Laboratory|
School of Engineering
|Last Modified:||10 Nov 2010 14:48|
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