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RESEARCH PAPERS

Acoustical Resonance Measurement of Particle Loading in Gas-Solids Flow

[+] Author and Article Information
A. A. Vetter

Humbug Mountain Research Laboratories, Duarte, CA 91010

F. E. C. Culick

California Institute of Technology, Pasadena, CA 91125

J. Eng. Gas Turbines Power 109(3), 331-335 (Jul 01, 1987) (5 pages) doi:10.1115/1.3240044 History: Received August 01, 1986; Online October 15, 2009

Abstract

The measurement of the frequency of transverse acoustical resonances of a duct can determine the mass loading and size of particles fluidized by a gas phase. A first-order perturbation-iteration acoustical analysis is applied to this two-phase flow measurement, termed the Acoustical Resonance Measurement, in a circular duct. A sample application of pulverized coal fluidized by air in power plant coal piping is examined. The particle loading is determined by measuring the frequency of a single transverse resonance, and the particle size is determined by simultaneously measuring the frequencies of two transverse resonances. The Acoustical Resonance Measurement provides a nonintrusive and real-time measurement of the mass loading and sizing of particles fluidized by a gas phase.

Copyright © 1987 by ASME
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