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Title: Application Rules For Vortex Shedding Flowmeters, Making A Selection Easy
Author: Frank Albers, Camille Limpens
Source: 2000 North Sea Flow Measurement Workshop
Year Published: 2000
Abstract: Since the early nineties vortex shedding flowmeters are used in the process industry as a cost effective alternative or replacement for orifice flowmeters, with the aim to have an improved performing flowmeter at a lower operating cost Often performance was not as successful as targeted for. Incorrect application of vortex flowmeters resulted in a number of cases in plant startup difficulties, resulting in e.g. extra costs to rectify the situation and deferred production. Examples of this were situations whereby the Reynolds number or flow velocity was too low, flashing/cavitation of liquids occurred or fluid pulsation or external induced mechanical vibration levels were too high. Moreover the up- and downstream pipe configuration or positioning errors at installation affected the meter factor. Concluding one can say, wrong selections were made because of limited application and engineering knowledge in relation to the behaviour of vortex flowmeters.

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