Sierra InnovaMass 240i Series, Instruction Manual, Page: 97 / 115

97
Appendix B: Flow Meter Calculations
Inline Flow Meter Calculations
Volume Flow Rate
Mass Flow Rate
Flowing Velocity
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)

= Density (lbm / ft^3)
Insertion Flow Meter Calculations
Flowing Velocity
Volume Flow Rate
Mass Flow Rate
K
f
Q
V


V M
Q Q

c
f
K
f
V

A
Q
V
V
f

A V Q
f V


A V Q
f M
