Flow measurement is the quantification of bulk fluid movement. Flow can be measured using devices called flowmeters in various ways. The common types of flowmeters with industrial applications are listed below:
Obstruction type (differential pressure or variable area)
Inferential (turbine type)
Electromagnetic
Positive-displacement flowmeters, which accumulate a fixed volume of fluid and then count the number of times the volume is filled to measure flow.
Fluid dynamic (vortex shedding)
Anemometer
Ultrasonic flow meter
Mass flow meter (Coriolis force).
Flow measurement methods other than positive-displacement flowmeters rely on forces produced by the flowing stream as it overcomes a known constriction, to indirectly calculate flow. Flow may be measured by measuring the velocity of fluid over a known area. For very large flows, tracer methods may be used to deduce the flow rate from the change in concentration of a dye or radioisotope.
Flowmeasurement is the quantification of bulk fluid movement. Flow can be measured using devices called flowmeters in various ways. The common types...
disciplines—that embraces empirical and semi-empirical laws derived from flowmeasurement and used to solve practical problems. The solution to a fluid dynamics...
waterfalls by flow rate Weir § Flowmeasurement In dust collection systems: the air-to-cloth ratio Bulk velocity Flowmeasurement Flowmeter Mass flow rate Orifice...
The peak expiratory flow (PEF), also called peak expiratory flow rate (PEFR) and peak flowmeasurement, is a person's maximum speed of expiration, as measured...
Albert (2010). Water Measurement with Flumes and Weirs. ISBN 978-1887201544. Akers, Peter (1978). Weirs and Flumes for FlowMeasurement. ISBN 978-0471996378...
with the flow. The actual flow is computed as a function of the water velocity and phase. This technique allows non-intrusive flowmeasurements, at high...
drop in pressure. By measuring pressure, the flow rate can be determined, as in various flowmeasurement devices such as Venturi meters, Venturi nozzles...
upstream of the flow meter can reduce the length of straight pipe required. However, they produce only marginal improvements in measurement accuracy and...
net capital purchases. The second difference is that the free cash flowmeasurement makes adjustments for changes in net working capital, where the net...
The equipment must accurately measure the amount of fuel pumped. Flowmeasurement is almost always done by a 4 stroke piston meter connected to an electronic...
definition of a wet gas flow that is universally accepted. Wet gas is a particularly important concept in the field of flowmeasurement, as the varying densities...
orifice if it has been calibrated with an appropriate fluid flow and a traceable flowmeasurement device. Plates are commonly made with sharp-edged circular...
http://www.processindustryforum.com/article/patented-flow-meter-saw-technology-accurate-flow-measurement-hygienic-applications History of SAW Devices SAW...
Wiktionary, the free dictionary. Flow rate may refer to: Flowmeasurement, a quantification of bulk fluid movement Mass flow rate (ṁ or μ), the mass of a...
used to determine the flow rate of the grain. The measurements need to be timed with the clean grain elevator paddles so measurements are taken of the grain...
flowmeters. Electromagnetic pump Flowmeasurement Magnetohydrodynamics Water metering 3D animation of the Electromagnetic Flow Measuring Principle eFunda:...
float to the top even if there is no flow. The mechanical nature of the measuring principle provides a flowmeasurement device that does not require any electrical...
transfer is one of the most important applications for flowmeasurement. Many flowmeasurement technologies are used for custody transfer applications;...
primary measurement devices. Consequently, viable alternatives to three-phase separators are essential. Industry’s response is the multiphase flow meter...
of flow meter that requires fluid to mechanically displace components in the meter in order for flowmeasurement. Positive displacement (PD) flow meters...
density measurement allows the calculation of flow in volume per time by dividing mass flow with density. Both mass flow and density measurements depend...
temperature. Flowmeasurement Magnetic flow meter Turbine flow meter "How Does an Ultrasonic Flow Meter Work". Lipták, Béla G.: Process Measurement and Analysis...
type of flowmeasurement. The letters "V" (for volume) and "Q" (a conventional symbol for flow rate) are both used as a symbol for urine flow rate. The...
size that produces a high level of background noise in measurements. Ultrasonic thickness measurement is one technique used to monitor quality of welds. A...
Pressure measurement is the measurement of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per...
Density, and Flow Units Used in Mass Flow Meters and Mass Flow Controllers. SEMI. Retrieved March 24, 2024. Spitzer, D. W. (1991). FlowMeasurement: Practical...
level measurements must be taken at both the primary and secondary points of measurement and a submergence correction must be applied to the flow equations...
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