Is it necessary to take the square root when using an online differential pressure transmitter for boiler air and powder to measure wind speed?
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Dear teachers, regarding the online measurement of the air velocity in the powder tube of the boiler’s air-powder system (in m/s), a differential pressure transmitter is used for this purpose. Is it necessary to perform a square root calculation on the data from the transmitter or the DCS?
In a differential pressure flow meter, there is a square root relationship between the differential pressure and the flow rate.
It is usually a pitot tube flow meter, and the differential pressure value requires square root calculation.
For the flowmeter in the differential pressure throttling device, the signal needs to be squared; either a DCS or a transmitter can be used, one of the two.
Only one of the transmitter or the DCS needs to have its value taken to the square root; it is not possible to take the square root of both the transmitter and the DCS.