Predicted influences of changes in particle size distribution in pulverized coal on attenuation of sound-Reference-Cited by-同舟云学术

Predicted influences of changes in particle size distribution in pulverized coal on attenuation of sound

Published:2001-05-01 Issue:2 Volume:215 Page:133-146
ISSN:0954-4089
Container-title:Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering
language:en
Short-container-title:Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering

Author:

Wang Q¹,Attenborough K¹,Woodhead S²

Affiliation:

1. The University of Hull Department of Engineering UK

2. The University of Greenwich; Chatham Maritime School of Engineering Kent, UK

Abstract

Scattering theory predictions of the changes in the attenuation of sound at frequencies between 100 Hz and 100 kHz due to changes in the (spherical) particle size distributions in airborne particulate suspensions with characteristics typical of pulverized fuel flows are considered. These predictions are compared with a criterion for the detectability of insertion loss changes, assuming a sensor separation of 100 mm. It is concluded that, for such a separation, at frequencies greater than 30 kHz and concentrations greater than 0.5 kg/kg, it is feasible to monitor changes in the fraction of particles with radii above 37.5 μm by measuring cross-pipe sound attenuation.

Publisher

SAGE Publications

Subject

Industrial and Manufacturing Engineering,Mechanical Engineering

Link

http://journals.sagepub.com/doi/pdf/10.1243/0954408011530389

Reference9 articles.

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3. PARTICLE IRREGULARITY AND AGGREGATION EFFECTS IN AIRBORNE SUSPENSIONS AT AUDIO- AND LOW ULTRASONIC FREQUENCIES

4. Wave propagation through an assembly of spheres: IV. Relations between different multiple scattering theories

5. Comparison of multiple scattering theories with experimental measurements in emulsions

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