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Flow Measurement

Hot Wire Anemometer Principle

S Bharadwaj Reddy
Principle of Hot wire Anemometer When an electrically heated wire is placed in a flowing gas stream, heat is transferred from the wire to the gas and hence the temperature

Flowmeter Characteristics

S Bharadwaj Reddy
Experts claim that over 75 percent of the flowmeters installed in industry are not performing satisfactorily. And improper selection accounts for 90 percent of these problems. Obviously, flowmeter selection is

Flow Meter Calibration

S Bharadwaj Reddy
You can calibrate flow measurement devices by three methods: Wet calibration using actual fluid flow Measurement check of physical dimensions and use of empirical gables relating flow rate to these

What is a Thermal flow meter ?

S Bharadwaj Reddy
Wind chill is a phenomenon common to anyone who has ever lived in a cold environment. When the ambient air temperature is substantially colder than the temperature of your body,

Laminar Flow Meter Working Principle

S Bharadwaj Reddy
A unique form of differential pressure-based flow measurement deserves its own section in this flow measurement chapter, and that is the laminar flowmeter. Laminar flow is a condition of fluid

Why Pressure & Temperature Compensation required for Orifice Flow Meters ?

S Bharadwaj Reddy
When we derived a formula for predicting flow rate from pressure dropped by a  orifice or venturi tube or, we had to make many assumptions, chief among them being a total

Different Flow Elements

S Bharadwaj Reddy
Other pressure-based flow elements exist as alternatives to the orifice plate. The Pitot tube, for example, senses pressure as the fluid stagnates (comes to a complete stop) against the open

Insertion flow meters

S Bharadwaj Reddy
When the pipe carrying process fluid is large in size, it may be impractical or cost-prohibitive to install a full-diameter flowmeter to measure fluid flow rate. A practical alternative for

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