Help: Calculating pipe flow velocity
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Dear experts, I need help with calculating the flow velocity in a pipeline. Example: Pipeline diameter is DN350, gas flow rate is 60,000 m3/h, gauge pressure is 2.5 MPa, temperature is 30°C; friction coefficients are to be ignored for now. Could someone please provide the calculation method?
The actual volumetric flow rate divided by the cross-sectional area of the pipe; if you provide the volume under standard conditions, it is approximately 7.4 m/s
This post was last edited by a328958874 on 2020-8-20 at 10:13. It’s really not appropriate to ask such questions. . . Just create an Excel file yourself and enter the data – that’s all. The watermark is really impressive; the flow rate is 7.49
60000*（303/273）/【（2.5+0.1）/0.1】//3600=7.4m/s; the Excel file mentioned on the 3rd floor can also be found on the forum
Is the gas flow rate at operating conditions or under standard conditions? I think if it’s at operating conditions, the velocity can be obtained by simply dividing by the pipe cross-sectional area; if it’s under standard conditions, the operating condition flow rate needs to be calculated first before dividing by the cross-sectional area to get the velocity
There are many similar tables in the forum, or you can create one yourself according to the guidelines
(60000*3600 m3/s)/3.14 (0.35/2)2 m2=? s/m