0
Research Papers: Flows in Complex Systems

Experimental Study of a New Flow Conditioner on Disturbed Flow in Orifice Plate Metering

[+] Author and Article Information
A. Ahmadi

Department of Mechanical Engineering, Iran University of Science and Technology-Arak Branch, Arak, Markazi 38181-41167, Irana_ahmadi@iust.ac.ir

J. Fluids Eng 131(5), 051104 (Apr 13, 2009) (8 pages) doi:10.1115/1.3114677 History: Received May 07, 2007; Revised March 13, 2009; Published April 13, 2009

The sensitivity to poor conditioned and swirling flow of flow measurements using an orifice plate are subjects of concern to flowmeter users and manufacturers. Measurements of mass flow rate under different conditions and different Reynolds numbers were used to establish a change in discharge coefficient relative to the standard one. The experimental results show that an optimally shaped flow conditioner could attenuate the effects of both swirl and asymmetrical flows. The optimization of the swirler flow conditioner is a main outcome of this work. So far the experimental results show that the cone swirler flow conditioner is the best one for swirling flow.

FIGURES IN THIS ARTICLE
<>
Copyright © 2009 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Sketch of the experimental rig for water

Grahic Jump Location
Figure 2

Sketch of air experimental rig

Grahic Jump Location
Figure 3

Swirler flow conditioner shapes; left to right: (a) four-piece swirler, (b) cone swirler, (c) two-piece swirler, and (d) joint swirler

Grahic Jump Location
Figure 4

Block disturbances (left to right: 1/4 and 1/8 disturbances)

Grahic Jump Location
Figure 5

The positions of disturbance, swirler, and orifice plate

Grahic Jump Location
Figure 6

Change in discharge coefficient with two-piece swirler

Grahic Jump Location
Figure 7

Change in discharge coefficient with joint swirler

Grahic Jump Location
Figure 8

Change in discharge coefficient with four-piece swirler

Grahic Jump Location
Figure 9

Change in discharge coefficient with cone swirler

Grahic Jump Location
Figure 10

Change in discharge coefficient for two-elbow disturbance with cone swirler

Grahic Jump Location
Figure 11

Change in discharge coefficient for different disturbances and cone swirler (air rig)

Grahic Jump Location
Figure 12

Calibration of the cone swirler

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In