Pipeline flow calculation problem
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It is known that the diameter of the external pipeline is 65, and the compressed air pressure is 0.8 MPa. Subsequently, 2 parallel circuits of 50 pipes are connected; each pipe consists of only 3 90-degree elbows. With all the valves in the pipelines opened, what is the maximum flow rate (or velocity) for each of the 50 branches? How should it be calculated? There is another question: given that the origin of the material is well-established, what effect does the use of an air tank or not before the pipeline at location 65 have on the flow rate (or speed)?
If gas is used intermittently, an air tank provides a buffer for stability, and it also facilitates drainage and waste removal.
With the valve fully open, is it the venting speed and flow rate, or is there pressure at the outlet? The conditions are not complete
The outlet pressure is to be maintained at 0.7 MPa. Thank you; it would be preferable to have a higher flow rate. Once the pressure is fixed, is the flow rate constant or can it be adjusted?