Seeking advice on gas flow rate calculation
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The pipe is 110*4.1, with a pressure of 0.22 MPa; can this be considered as gas flow rate?
It is not possible to calculate the flow rate with just these two values; if one really wants to know the flow rate, it can be determined by using an insertable flow meter to measure the velocity.
Thanks. One more question: what are the liquefaction temperatures of nitrogen at 0.8 MPa and of oxygen at 0.2 MPa?
Flow rate, pipe diameter, and flow velocity: knowing any two of these parameters allows the calculation of the third one; this is unrelated to the pressure in the pipe. Flow rate = Flow area * Flow velocity
It is assumed that your pressure condition is gauge pressure. The liquefaction temperature of N2 at 0.8MpaG is -171 degrees, while that of O2 at 0.2MpaG is -171.2 degrees.