Knowing the pressure before and after the pipe and the flow rate, can I calculate the flow velocity?
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A friend was working on the design of a valve some time ago; he asked me for the pressure before and after the valve as well as the flow rate, so that I could calculate the diameter of the pipe. I said that those details weren’t enough to carry out such a calculation. He then gave me this table and would like to ask the more experienced folks here: what is the basis for this table?
The volumetric flow rate divided by the cross-sectional area of the pipe interior gives the flow velocity; what he provided is a table recommending optimal flow velocities
Determine the pipe diameter at the rated flow rate based on preliminary calculations using the economic flow rate chart
For specific details, refer to the fluid mechanics section of Principles of Chemical Engineering; for more information, consult the Chemical Process Design Handbook
I thought the same thing, but the problem is that it’s a high-pressure fluid, so the flow rate will definitely be high. If we simply follow what’s indicated on this table, I think there will be serious problems