ONICON F-2600 - Manual (Page 122)

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F-2600 & F-2700 Vortex Flow Meter Manual 02/15 - 0808-7 / 19204 Page B-1
APPENDIX B FLOW METER CALCULATIONS
In-Line Flow Meter Calculations
Volume Flow Rate
Q
V
=
f
K
Mass Flow Rate
Q
M
= Q
V
ρ
Flowing Velocity
V
f
=
Q
V
A
Where:
A = Cross sectional area of the pipe (ft^2)
f = Vortex shedding frequency (pulses / sec)
K = Meter factor corrected for thermal expansion (pulses / ft^3)
Q
M
= Mass flow rate (lbm / sec)
Q
V
= Volume flow rate (ft^3 / sec)
V
f
= Flowing velocity (ft / sec)
ρ = Density (lbm / ft^3)