Pitot Tube Flowmeter Calculations

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A Pitot tube measuring the move of glycerin (78.6 lb/ft3 ) produces a differential stress of 35 inches W.C. at a mass movement charge of 450 kilos per minute.

Calculate the differential strain produced by this identical Pitot tube at a move price of 310 lb/min.

Calculate the mass movement charge at a differential stress of 12.6 ”WC.

If the glycerin density occurs to alter from 78.6 lb/ft3 to 75.1 lb/ft3 , calculate the mass move charge at a differential strain of 24.eight ”WC.

Reply :

Differential stress produced by this identical Pitot tube at a stream fee of 310 lb/min = 16.61 ”WC

Mass movement price at a differential stress of 12.6 ”WC = 270 lb/min

Mass movement fee at DP of 24.eight ”WC, assuming density of 75.1 lb/ft3 = 370.three lb/min

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