We installed an OMEGA turbine flowmeter on a pipeline with a

We installed an OMEGA turbine flowmeter on a pipeline with a K-factor of 12243 Pulses/Gallon. The frequency of the signal from this flowmeter is 1800Hz. Calculate the average velocity in (m/s) for this pipe if the pipe diameter is 1 in.

Solution

No. of pulses per unit time = 1800 =f

flow rate= f/k = 1800/12243 = .147gallon/s

1 gallon = .003785m^3/s

flow rate = .000556m^3/s

diameter = d = 1in = .025m

area = .00049

average velocity = flow rate / area

= .000556/.00049 = 1.134 m/s