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FLOW MEASUREMENT & MEASUREMENT OF LIQUID LEVEL - Coggle Diagram
FLOW MEASUREMENT & MEASUREMENT OF LIQUID LEVEL
PRIMARY DEVICES ( QUANTITY METER )
SIMPLE, ECONOMIC AND
EXTREME ACCURATE
MEASURE THE AMOUNT OF FLUID IN TERMS OF MASS OR VOLUME THAT FLOWS PAST AS A GIVEN POINT IN A DEFINITE PERIOD OF TIME
NUTATING DISC METER
The most common and accurate type of positive displacement meters. The simple and reliable operating principle allows water to flow into the chamber , which causes the disc to nutate
DOMESTIC WATER SYSTEM
SlLIDING - VANE - TYPE METER
Is vane type positive displacement flow meter, creating high accuracy measurement and low pressure loss by decreasing rotation resistance. It is less subject to temperature and viscosity, and possible the stable measurement with always high accuracy.
LOBED - IMPELLER METER
A Type of positive displacement meter in which a fluid stream is separated into discrete quantities by rotating, meshing impellers driven by interlocking gears.
METERING OF GAS AND
REFINED PETROLEUM PRODUCTS
SECONDARY DEVICES (RATE METER)
MEASURE ANOTHER PHYSICAL QUANTITY WHICH RELATED TO FLOW
VARIABLE HEAD METER
PITOT TUBE
ALSO KNOWN AS PITOT PROBE, IS A FLOW MEASUREMENT DEVICE USED TO MEASURE FLUID FLOW VELOCITY. THE PITOT TUBE WAS INVENTED BY THE FRENCH ENGINEER HENRI PITOT IN THE EARLY 18th CENTURY AND WAS MODIFIED TO ITS MODERN FORM IN THE MID 19th CENTURY BY FRENCH SCIENTISTS HENRY DARCY
BETTER KNOWN AS AIR SPEED INDICATOR
A technique used in any process requiring the transport of a material from one point to another
Type of flow:
Laminar flow & Turbulent flow.
If Re < 2000 = laminar flow.
if Re > 4000 = turbulent flow. If 2000<= Re <= 4000 = Critical zone between laminar & turbulent
ESSENTIALLY IN MANY APPLICATIONS SUCH TRANSPORTATION OF SLURRIES MATERIAL (CEMENT) , COMPRESSED NATURAL AIR GAS IN PIPELINES, WATER AND GAS SUPPLY SYSTEMS TO DOMESTIC CONSUMERS
