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Title: Experimental Evaluation Of Selected Orifice Flowmeter Upstream Installations
Author: James A. Brennan, Charles F. Sindt, Michael A. Lewis
Source: American Gas Association 1990
Year Published: 1990
Abstract: There are two standards for orifice flow measurement that are the primary references used in the gas industries around the world. These standards differ significantly on some installation specifications. The differences can profoundly affect the design, cost, and measurement accuracy of meter stations. Revisions to the standards currently are being completed. A new flow equation has been developed, and serious consideration given to changing some of the installation specifications. New experimental test results are the basis for changing the installation specifications on pipe roughness and flow conditioner location. These two parameters are being studied both individually and collectively. Results from tests on orifice flowmeters ranging from 3 to 24 inches are presented.

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