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RESEARCH PAPERS

Analysis of Venturi Performance for Gas-Particle Flows

[+] Author and Article Information
F. D. Shaffer

United States Department of Energy, Pittsburgh Energy Technology Center, Pittsburgh, PA 15236

R. A. Bajura

Energy and Water Research Center, West Virginia University, Morgantown, WV 26506

J. Fluids Eng 112(1), 121-127 (Mar 01, 1990) (7 pages) doi:10.1115/1.2909359 History: Received October 22, 1987; Online May 23, 2008

Abstract

In recent years, use of the venturi for measurement of gas-particle flows has received considerable attention. The technology for the venturi as a single-phase flowmeter has matured to the point that application is routine. Much more research, however, is required to establish the venturi as an acceptable gas-particle flowmeter. The first part of this paper consists of a discussion of the basic principles of venturi pressure-flow performance for gas-particle flows. This is followed by a description of the experimental calibration of a venturi for measurement of gas-particle flows with particle-to-gas mass-loading ratios up to 35. Next, a modified Stokes number is presented and shown to improve correlation of venturi pressure-flow data. Finally, the predictions of a model presented by Doss are compared with the pressure-flow data of the venturi calibration performed in this work. The Doss model provides good predictions of venturi differential pressures for particle-to-gas mass-loading ratios less than ten but tends to overpredict the differential pressure, by as much as 45 percent, for particle-to-gas mass-loading ratios above 10.

Copyright © 1990 by The American Society of Mechanical Engineers
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