Everyone, please help with the calculation problems
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In our plant, the gas flow rate at the fourth stage is 60,000 Nm3/h with a pressure of 1.85 MPa; the pipeline diameter is DN300. Please calculate the flow velocity.
The pressure difference between the pipe inlet and outlet should also be required.
For ls, I don’t think a pressure difference is necessary; the pressure remains constant. As long as there is flow rate and the DN value is known, it can be calculated using the formula v=4q/（π*d^2)
Friend upstairs, the gas flow rate is given in terms of gauge value; it needs to be converted into a flow rate or volume at the current pressure.
After calculation, under the current pressure, the flow velocity inside the pipe is 12.75 m/s. 60000/18.5/3600/(0.785*0.3^2)
Without temperature, the calculation will also be incorrect