An experimental procedure was developed for determining both the density and flow rate of a gas from measurements of pressure drops caused by an abrupt flow area contraction in a cylindrical pipe. Experiments were carried out by varying the density and flow rate of a light gas mixture of air and helium, spanning a Reynolds number range from to . From experimental results, a procedure was then proposed for evaluating the density from pressure change measurements in the scope of light gas extraction experiments.
Issue Section:
Technical Briefs
1.
Vauquelin
, O.
, and Mégret
, O.
, 2002, “Smoke Extraction Experiments in Case of Fire in a Tunnel
,” Fire Saf. J.
0379-7112, 37
, pp. 525
–533
.2.
Gysling
, D. L.
, 2007, “An Aeroelastic Model of Coriolis Mass and Density Meters Operating on Aerated Mixtures
,” Flow Meas. Instrum.
0955-5986, 18
, pp. 69
–77
.3.
Rabalais
, R. A.
, and Sims
, L.
, 2002, “Ultrasonic Flow Measurement: Technology and Applications in Process and Multiple Vent Stream Situations
,” UR-234, www.gesensing.com/products/resources/whitepapers/ur234.pdfwww.gesensing.com/products/resources/whitepapers/ur234.pdf.4.
Way
, J.
, and Libby
, P. A.
, 1970, “Hot-Wire Probes for Measuring Velocity and Concentration in Helium-Air Mixture
,” AIAA J.
0001-1452, 8
, pp. 976
–978
.5.
McCaffrey
, B. J.
, and Heskestad
, G.
, 1976, “A Robust Bidirectional Low-Velocity Probe for Flame and Fire Application (Brief Communications)
,” Combust. Flame
0010-2180, 26
, pp. 125
–127
.Copyright © 2008
by American Society of Mechanical Engineers
You do not currently have access to this content.