flow meter types pdf
Obstruction flow meters are the simples and oldest of the. Hot wire anemometers based on h fv 4.
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Flow Meter Types Pdf - manufacturer factory supplier from China Total 24 Products for Flow Meter Types Pdf LNG Coriolis Mass Flow Meter.
. Thus the mass flow rate of hydrocarbons in the liquid and gas phases will change when the pressure is reduced. Electromagnetic flow meters are of two types insertion type and full bore. So the flow rate can be determined by measuring the pressure drop across the restriction.
Meter must only be used where you can afford the pressure drop without affecting the rest of the system operations. Rotameters are a particular kind of flowmeter based on the variable area principle. For a given small range a smaller size compared to PD meter.
Extremely high accuracy and no pressure drop. Unstabilised liquid hydrocarbons contain some light components that will be transferred from liquid phase to the gas phase when the pressure is reduced. Larger size required to achieve a given flowrate range.
Water coolers shell and tube heat exchangers safety heat exchangers and plate heat exchangers. Acoustic flow meters based on Doppler effect 5. Ultrasound transmission or reflection Thermal convection.
Variable area flow meters Rotameters turbine flow meter target flow meters etc. Pressure drop devices based on Bernoulli Principle a Venturi b Orifice plate c Pitot tube 2. PDF Principles of Mass Flow meters Home Fluid Mechanics Thermofluid Thermal Engineering Engineering Fluid Dynamics Flow Meter Principles of Mass Flow meters December 2015 Authors.
This is also the reason that the next flow meter type was developed. 23 Venturi Flow meter The venturi flow meter while considered an obstruction flow meter is less of an obstruction than the orifice type. This reference design is specifically targeted for gas and fluid meters.
The Flow Nozzle 5. Single-use Coriolis flowmeters are at the high end of the price scale. This variable area principle consists of three basic elements.
Restrictions are and when to use or not use a particular meter. Turbine flow meters where frequency velocity 6. Tity meters like positive displacement meters mass flow meters etc.
Flow meters can be classified into differential pressure meters variable area meter positive displacement meters magnetic turbine ultrasonic vortex and Coriolis. They provide a simple precise and economical means of indicating flow rates in fluid systems. This design fulfils the basic market requirement for the Flow meter.
Inferential type flow meters. It still does have a certain amount of pressure drop but. No straight lengths required.
Positive Displacement Flow meter. Water Flow Meter Types Pdf 10 out of 10 based on 403 ratings. The following points highlight the five main types of devices for measuring of flow in pipes.
Orifice Plate or Orifice Meter 4. LNG Coriolis Mass Flow Meter We are the only Chinese brand who gets ATEX and we get it from TUV SUD the most authoritative institute for ATEX Our meter. Types of Flow Meters and their Applications Flow Measuring Device 1.
Fall under mechanical type flow meters. In differential pressure meters a restriction is used to create a pressure drop. Affected by fluid viscosity.
Electrical type flow meters. One unit per carton. TYPES OF BLOOD FLOW METERS All blood flow meters currently used in clinical and research applications are based on one of the following physical principles.
Coriolis meters are ideal for any application where high accuracy is a key factor for consistent product quality safety and revenue. Full Bore meter is a circular meter where when the flow passes by filling the entire bore area the meter can measure the average velocity inside the meter. Indicator dye or thermal dilution Magnetic Blood Flow Meters.
Electromagnetic flow meter Ultrasonic flow meter. 11 Introduction to flow meter reference design Flow meter based on MC9S08GW64 is a low-cost low-power system. Handbook of Multiphase Flow Metering Page 86 of 113.
If extremely tight accuracies are desired. Types of Flow Meters Coriolis DP Meters Magnetic Meters Multiphase Meters Ultrasonic Meters Vortex Meters Coriolis meters are generally considered the most repeatably accurate flow meters available today. 20 Obstruction flow meters.
Cryogenic flow metering techniques 1. The Pitot Tube 3. The meters track mass flow and offer a very high turn-down ratio.
Low-power low-cost able to run on battery and with automated meter reading AMR. Requires upstreamdownstream straight lengths. Friction pressure drop packed screens 3.
A uniformly tapered flow tube a float and a measurement scale. Free from viscosity effect.
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