SAIMC


SAIMC: Johannesburg branch

May 2019 SAIMC

What is flow measurement, why is it important and how do we measure it?

Those were the questions asked of members at the March Technology evening, hosted at WIKA Instruments and presented by Sagadevan Kanniappen.

Cheryl Hird (left) thanks Sagadevan Kanniappen after the presentation.
Cheryl Hird (left) thanks Sagadevan Kanniappen after the presentation.

Flow is the movement of bulk fluid from point A to point B. The reasons for measuring it are quite simply to optimise profit and control accuracy. This can be done by various methods such as DP using primary elements, Vortex, Coriolus and electromagnetic flowmeters, to name just a few. Some of these methods overlap so, it is important to choose the correct instrument for the application.

Sagadevan went on to explain the measurement of flow by using primary elements.

These are not off-the-shelf items, making analysis of the specific application very important. The specific types of primary flow elements, such as orifice plates, meter runs, flow nozzle, Annubar, and Pitot and venturi tubes, were discussed and explained in detail, which led to some lively discussions and questions by members.


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