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Tuesday, July 28, 2020 | History

1 edition of Flow Conditioner Location Effects in Orifice Flowmeters found in the catalog.

Flow Conditioner Location Effects in Orifice Flowmeters

Flow Conditioner Location Effects in Orifice Flowmeters

  • 159 Want to read
  • 9 Currently reading

Published by Diane Pub. .
Written in English


The Physical Object
FormatPaperback
Number of Pages57
ID Numbers
Open LibraryOL11098900M
ISBN 100788111213
ISBN 109780788111211

with Vortab flow conditioner 6 x Pipe ID 1 x Pipe ID Recommendations shown are for general reference only as actual application conditions can vary and multiple effects are possible. FCI flow meter performance guarantees are only available following completed AVAL software-based application evaluations. Flow Profile. A flow meter’s performance is dependent upon the flow profile of the media entering the instrument. The desired flow profile is referred to as a fully developed flow profile where the profile is symmetrical in the pipe, and the center line velocity, when in turbulent flow, is times the average velocity. This flow profile.

The Dall tube is a shortened version of a Venturi meter, with a lower pressure drop than an orifice plate. As with these flowmeters the flow rate in a Dall tube is determined by measuring the pressure drop caused by restriction in the conduit. The pressure differential is typically measured using diaphragm pressure transducers with digital readout. The variable orifice flow control has an angled arrow drawn through the symbol to indicate that it is variable or adjustable in some fashion (Figure 2). The amount of flow through the orifice can be varied by opening or closing the adjustment. The larger the orifice size, the more flow will pass. Pressure Difference across the Flow Control.

Jennifer L. Scott has written: 'Flow conditioner location effects in orifice flowmeters' -- subject(s): Flow meters, Testing Asked in Nouns Is creek a common noun or a proper noun? Endress+Hauser Digital Solutions celebrates 20 years of innovation years of innovation. Read the full story. 03/03/ - 03/04/ I Basic-Instrumentation School This introductory course will start by providing maintenance and engineering personnel with a basic understanding of wiring, signals, instrumentation technologies.


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Flow Conditioner Location Effects in Orifice Flowmeters Download PDF EPUB FB2

Excerpt from Flow Conditioner Location Effects in Orifice Flowmeters Tests sponsored by Gas Research Institute were conducted with orifice flowmeters of two nominal sizes: mm (4 in) and 52 mm (2 in).Author: Jennifer L.

Scott. Flow Conditioner Location Effects in Orifice Flowmeters Unknown Binding – January 1, See all formats and editions Hide other formats and editions The Amazon Book Review. Technical Report: Flow conditioner location effects in orifice flowmeters.

Technical note. Get this from a library. Flow conditioner location effects in orifice flowmeters. [Jennifer L Scott; Charles F Sindt; Michael A Lewis; National Institute of Standards and Technology (U.S.)]. CROSS-REFERENCECHART Figure No.

BetaRatio Flow Cond. * Table No. Test Config TapLocation** 6 X ZAN 2 FIG.3 X 7 X ZAN 3 FIG.3 X 8 X ZAN 4 FIG.3 X 9 X ZAN 5 FIG.3 X 10 X X X X ZANSUMM. FIG.3 X 11 X ETl 6 FIG.3 X 12 X ETl 7 FIG.3 X 13 X ETl 8 FIG.3 X 14 X ETl 9 FIG.3 X 15 X X X ETlSUMM.

FIG.3 X 16 X FT6 10. For other tests with the orifice meter, a 90 degree elbow or a reducer was located upstream of the orifice plate and flow conditioner. Two beta ratios (, ) were more» tested in the 52 mm orifice meter in baseline configuration and with an elbow at 17D and a flow conditioner at 12D.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. An orifice meter consists of a flat plate that has a sharp-edged hole accurately machined in it and placed concentrically in a pipe as shown in Figure As liquid flows through the pipe, the flow suddenly contracts as it approaches the orifice and then suddenly expands after the orifice back to the full pipe diameter.

With respect to calibration of flowmeters, the Law of Similarity is the foundation for flow measurement standards. Effects of flow conditioning on Orifice meter Select values of upstream meter tube length, and flow conditioner location, to be used for the performance evaluation.

Install the flow conditioner at the desired location. An orifice plate is a thin plate with a hole in it, which is usually placed in a pipe.

When a fluid (whether liquid or gaseous) passes through the orifice, its pressure builds up slightly upstream of the orifice: 85–86 but as the fluid is forced to converge to pass through the hole, the velocity increases and the fluid pressure decreases.

A little downstream of the orifice the flow reaches C d {\displaystyle C_{d}}: = coefficient of. 40 J. Brennan et al - Choosing flow conditioners and their location Choosing flow conditioners and their location for orifice flow measurement J.

BRENNAN, C. SINDT, M. LEWIS and J. SCOT]- Three different tube bundles, a zanker, and an etoile flow conditioner have been tested in a mm orifice by: 8.

Orient the Conditioning Orifice Plate so the pressure taps are centered between any two (of four) orifice bore holes. In additi on, the pressure taps should be located at 90° to the plane of the last elbow. Review “Location and orientation” on page 4.

Size: 1MB. The location of the flow conditioner with respect to the orifice plate appears to influence meter performance more significantly than the type or location.

The concentric orifice plate flow meter has a sharp (square-edged) concentric bore that provides an almost pure line contact between the plate and the fluid, with negligible friction drag at the boundary. The beta (or diameter) ratios of concentric orifice plates range from to The maximum velocity and minimum static pressure occurs.

Flow Conditioning and Effects on Accuracy for Fluid Flow Measurement - American School of Gas Measurement Technology AGMSC Page 2 Someone using an orifice meter would choose this third option is because there are several flow conditioners on the market that easily outperform the tube bundle flow straightener.

Discover Book Depository's huge selection of Jennifer L Scott books online. Free delivery worldwide on over 20 million titles. Flow Conditioner Location Effects in Orifice Flowmeters (Classic Reprint) Jennifer L Scott. 07 Dec Paperback. Flow Conditioner Location Effects in Orifice Flowmeters (Classic Reprint) Jennifer L Scott.

Flow conditioners design and their effects in reducing flow metering errors of Fractal Flow Conditioner for Orifice Plate Flowmeters. a location for. Daniel Senior Orifice Fitting Demonstration. which allows the meter to cancel out the effects of swirl and cross flow.

The Flow Meter boasts a OIML accuracy class and requires only five diameters of straight run and no flow conditioner. • All volumetric flow meters can be flow conditioned: Orifice, Ultrasonic, Venturi, Coriolis Vortex, Turbine, Cone, Mag, etc.

• Every meter type responds differently to the effects of swirl and flow profile distortion. • Volumetric flow meters are looking for ‘good flow’. A restriction orifice (RO) is used to limit the flow through the pipe to a set flow by choking the flow at its sonic velocity.

A flow orifice (FO) is usually used to determine the flow through the. Orifice Plate. Orifice plate flow meters are differential pressure sensors for flow rate. Can be used with gases, liquids, corrosive, and high temperature fluids. Applications include steam flow, boiler feedwater, and fluid flow rates in building water lines.

Designed for use wherever there is an application for a conventional flow orifice plate. Scott JL, Sindt CF, Lewis MA () Flow conditioner location effects in orifice flowmeters.

NIST technical note National Institute of Standards and Technology, Boulder, Colorado Google Scholar.It is recommended that location 1 be positioned one pipe diameter upstream of the orifice, and location 2 be positioned one-half pipe diameter downstream of the orifice.

Since the pressure at 1 will be higher than the pressure at 2 (for flow moving from 1 to 2), the pressure difference as defined will be a positive quantity.