For 20,000 Nm3/h of acetylene gas at a delivery pressure of 0.3 MPaG, what should the pipe diameter be?
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Information provided by Party A: Acetylene gas at a flow rate of 20,000 Nm3/h, with a delivery pressure of 0.3 MPaG. What should be the pipe diameter? The figures I calculated differ significantly from what they imagined; therefore, I’d like to see everyone’s calculation results.
According to Section 4 of the Chemical Engineering Handbook, \"Fluid Flow Data\", the flow velocity at this pressure is less than or equal to 5 m/s; therefore, 5 m/s is taken as the value. The transport temperature is set at 20 degrees Celsius. The calculated inner diameter of the pipe is 620 mm, so a DN650 pipe should be used in practice.
I use DN300 pipes for 55,000 Nm3 of hydrogen
Your pressure is likely above 2.2 MP.