Gas flow rate
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Given 40 kPa, 3/4 inch pipe, natural gas, find flow velocity
It’s related to your traffic; you can’t determine it this way
No, think about it: can 1 cubic meter be the same as 100 cubic meters?
Flow rate divided by area gives the flow velocity; also make sure to check whether the pressure drop exceeds 40.
30 Nm3/h converts to an actual volume of approximately 1/1.4×30 = 21.4 m3/h = 0.00594 m3/s. The cross-sectional area, assuming a pipe inner diameter of 3/4 inch, is 15.75 mm = 0.01575 m; 3.14/4×0.01575² = 0.000195 m2. The flow velocity is therefore 0.00594/0.000195 = 30.1 m/s
Additional note: 1.4 should be the pressure and temperature correction factor