Steam main issue
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Dear experts: There is a DN200 steam main at the site of this facility; the steam pressure is 1.3 MPa and the temperature is 220°C, so it is superheated steam. The maximum steam consumption of this facility is 13 t/h. Now we need to modify this device, and it still requires 11 t/h of steam. Can the required steam still be supplied from the aforementioned DN200 main pipe?
It depends on the capacity of the steam supply system; after the modification, your steam consumption will be 24 t/h!
If the steam supply unit has sufficient capacity, a DN200 pipe is more than sufficient.
This post was last edited by ylb913 on 2015-10-11 at 19:53. Calculation of volumetric flow rate: 24000 kg/h = 24000/18*22.4 = 29867 Nm3/h. 29867/(13+1)*(273+220)/273 = 3853 m3/h. 3853/3600 = 1.07 m3/s. Calculation of pipe cross-sectional area: 0.1*0.1*3.14 = 0.0314 m2. Calculation of flow velocity: 1.07/0.0314 = 34.1 m/s. This flow velocity is acceptable.