Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: A Test Certificate On The Impact Of Piping And Flow Dynamic Effects On Flowmeter Accuracy In Gas And Liquid Flows
Author: E. Van Bokhorst, M.C.A.M. Peters
Source: 2002 International Symposium on Fluid Flow Measurement
Year Published: 2002
Abstract: Each commercially available flowmeter is normally provided with a calibration certificate. This certificate is based on stationary flow conditions and does not include any flow dynamic effects. Well-known installation dynamic effects like flow pulsations, valve noise and mechanical pipe vibrations can have a considerable impact on flowmeter accuracy in gas as well as in liquid flows. Several investigations have been published in the past on the impact of flow dynamic effects on differential pressure, turbine, and vortex and Coriolis flowmeters 1,2,3,4. Recent publications indicate that ultrasonic flowmeters may also be influenced by low-frequency pulsations 5. Further ultrasonic noise of control valves is well known as a potential source of errors on this type of flowmeter. The impact of mechanical pipe vibrations on vortex and Coriolis flowmeters can result in large errors if vibrations occur in the operating range of the flowmeter. Investigations on several commercially available flowmeters of this type have reported these phenomena for vortex and coriolis flow meters International standards like ISO, AGA and API available for several flowmeters sometimes refer to flow and piping dynamic effects like flow pulsations, transients or pipe vibrations, though they do not specify allowable amplitudes or frequencies.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.