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This scale-up calibration process is repeated regularly in accordance with NIST quality procedures. Flow meter calibration end users have the option to pay NIST to supervise calibrations; these calibrations qualify as NIST calibrations. [7]
A Coriolis water meter is a precision instrument used to measure the mass flow rate and density of fluids, including water, by utilizing the Coriolis effect. Unlike traditional mechanical meters with moving parts, Coriolis meters use oscillating tubes through which the fluid flows.
A mass flow meter of the Coriolis type. A mass flow meter, also known as an inertial flow meter, is a device that measures mass flow rate of a fluid traveling through a tube. The mass flow rate is the mass of the fluid traveling past a fixed point per unit time.
The Coriolis principle for flow measurement requires the oscillating section of a rotating pipe to be exploited. Oscillation produces the Coriolis force, which traditionally is sensed and analyzed to determine the rate of flow. Modern coriolis meters utilize the phase difference measured at each end of the oscillating pipe. [11]
Furthermore, a direct measure of the density of the fluid is obtained. Coriolis measurement can be very accurate irrespective of the type of gas or liquid that is measured; the same measurement tube can be used for hydrogen gas and bitumen without recalibration. [citation needed] Coriolis flowmeters can be used for the measurement of natural ...
There is a scarcity of theoretical models available to predict the errors reported by Coriolis meter in aforementioned conditions. Figure (8) showing Coriolis meter. Flow conditioners make no effect on meter accuracy while using wet gas due to the annular flow regime, which is not highly affected by flow conditioners.
The cost of MPFMs today remains in the range of US$100,000 – US$500,000 (varying with onshore/offshore, topside/subsea, the physical dimensions of the meter and the number of units ordered). Installation of these MPFMs can cost up to 25% of the hardware cost and associated operating costs are estimated at between US$20,000 and $40,000 per ...
For gas metering, gas orifice meters and ultrasonic flow meters are most common. [34] Coriolis meters are in use for liquid measurements, but can also take gas measurement applications. [35] For the application of allocation measurements, multiphase flow meters have been adopted, especially for subsea production systems. These equipments are ...
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