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Title: Flow Disturbance Effects On The Performance Of The Elster - Instromet Q . Sonic - Plus Ultrasonic Meter
Author: John Geerligs Jeff Crowe Robert Mcbrien
Source: 2015 International Symposium on Fluid Flow Measurement
Year Published: 2015
Abstract: he objective of this work was to evaluate the effects of flow disturbances on the performance of the Elster - Ins tromet Q . Sonic - plus 200 - mm (8 - inch) ultrasonic meter . The Q.Sonic - plus has a reduced bore with custom machined inlet and outlet tapers that match the meter run piping. Testing was performed with high pressure (5000 to 6000 kPa) natural gas to evaluate the performance of the meter in baseline and single - elbow installations . Due to concern that liquid may collect in front of the reduced - bore meter at low flow rates, meter performance was also measured during the onset of, and recovery from, liquid loading. An 80:20 mix, by weight, of compressor oil and glycol was injected approximately 75 pipe diameters upstream of the flow conditioner. The liquid load ranged from 0.08 % to 0.26% , by weight, of the gas flow

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