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Title: An Investigation Of The Effectiveness Of Flow Conditioners
Author: James S. Humphreys, John m. Hobbs
Source: 1986 International Symposium on Fluid Flow Measurement
Year Published: 1986
Abstract: Examples of the five most common flow conditioners, the Zanker, Mitsubishi Heavy Industries Rectifier, etoile, AMCA and tube bundle, have been tested and compared in conditions of fullydeveloped, asymmetric and swirling flow. The configurations chosen as the sources of asymmetry and swirl were a right-angle swept bend and two such bends, adjacent and in mutually perpendicular planes, which are the most common of the disturbed-flow configurations considered by the Standards. The test package comprised a previously-calibrated orifice plate of diameter ratio, 0.8, chosen to present the greatest challenge to the effectiveness of the conditioners. The package was equipped with a single pair of corner pressure taps and four pairs of flange taps. The maximum separation between the disturbances and the conditioners was three pipe diameters and the separation between the conditioners and the orifice plate was varied between 2 and 12 diameters.

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