Instrumentation > Flow Measurement | Flow Control Network

Application Corner: Measuring under vacuum, part 2

Normally, liquid will flow downward by gravity. However, when a vacuum is applied to a vessel, liquid may flow upward from below — like drinking through a straw.

Courtesy of MCAA

Market Updates: Projected growth in process instrumentation and automation industry; global flowmeter market

Market Updates: MCAA market forecast projects PI&A industry to be $17 billion by 2023; Flow Research study projects global flowmeter market to approach $8.85 billion by 2023

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Quiz Corner: Installation of straight run requirements upstream and downstream of a flowmeter

What is the rule of thumb for the amount of straight run required upstream and downstream of a flowmeter?

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Quiz Corner: Location of differential pressure flow transmitter for liquid service

Where and how should a differential pressure flow transmitter be located for liquid service?

Figure 1. Orifice plate meters. All images courtesy of Emerson Automation Solutions

Using orifice plate flowmeters to their full potential in flow applications

Choosing the right specifications and using diagnostics can enhance the performance of orifice meters.

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Application Corner: Natural gas flow measurement, part 2

Accurate flow measurement entails a larger magnitude of compensation for pressure and/or temperature.

Quiz Corner: Orifice plate flowmeter location

What is the proper tap location for an orifice plate flowmeter?

Application Corner: Natural gas flow measurement

The heating value of actual natural gas at a given location could be different from a typical NAESB natural gas heating value by as much as a few percent.

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The importance of accurate flow measurement in industrial processes

Effective measurement systems are contingent upon understanding the uncertainty and performance required for a given application.

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Quiz Corner: Flow error from expected temperature fluctuations

A flowmeter that measures velocity is designed to measure the flow of a gas whose temperature is controlled within 3°C of its setpoint of 27°C. What is the approximate flow error resulting from the expected temperature fluctuation?

Application Corner: Chemical composition of natural gas

The physical properties of natural gas such as its density, heat content and thermal properties can be different and vary over time.

Figure 1. Built-in diagnostic tools make data collection and analysis easier. All images courtesy of Emerson Automation Solutions

Advanced wiring technologies for Coriolis flowmeters

Two-wire Coriolis flowmeters with diagnostics are now a viable option for many facilities including chemical plants, refineries and power generation stations.

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Using 3D metal printing for flow and pressure sensors

Quality standards will be required for the adoption of additive manufacturing of flow and pressure meters using related corrosion-resistant alloys.

Quiz Corner: Flowmeter selection

Which flowmeter could be used to measure 10 to 100 gallons per minute (gpm) of liquid with a specific gravity of 1.20 and a viscosity of 500 centipoise (cP) in a 3-inch pipe?