The fractal flow conditioner for orifice plate flow meters

Manshoor, B. and Nicolleau, F. C. G. A. and Beck, S.B.M. (2011) The fractal flow conditioner for orifice plate flow meters. Flow Measurement and Instrumentation. pp. 208-214. ISSN 0955-5986

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Abstract

The sensitivity of orifice plate flow meters to the quality of the approaching flow continues to be a cause for concern in flow metering. The distortions caused by pipe fittings such as valves, bends, compressors and other devices located upstream of the orifice plate can lead to non-standard velocity profiles and give errors in measurement. The design of orifice plate meters that are independent of the initial flow conditions of the upstream is a major goal in flow metering. Either using a long straight pipe, or a flow conditioner upstream of an orifice plate, usually achieves this goal. The effect of a fractal flow conditioner for both standard and non-standard flow conditions was obtained in experimental work and also using simulations. The measurement of mass flow rate under different conditions and different Reynolds numbers was used to establish a change in discharge coefficient relative to a standard one. The experimental results using the fractal flow conditioner show that the combination of an orifice plate and a fractal flow conditioner is broadly insensitive to upstream disturbances. The simulation results also show that the device can be used as a part of a flow metering package that will considerably reduce installation lengths. Previous work with orifice plates has shown that a combination of flow conditioner and orifice plate was promising. The results of using a combination of the fractal flow conditioner and orifice plate for non-standard flow conditions including swirling flow and asymmetric flow show that this package can preserve the accuracy of metering up to the level required in the Standards.

Item Type:	Article
Uncontrolled Keywords:	Fractal flow conditioner; orifice plate; low measurement.
Subjects:	T Technology > T Technology (General)
Depositing User:	Mr. Abdul Rahim Mat Radzuan
Date Deposited:	02 Nov 2022 06:42
Last Modified:	02 Nov 2022 06:42
URI:	http://eprints.uthm.edu.my/id/eprint/7950

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