Calculation of pressure drop during detailed fan design
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I don’t know how to handle this, as I’m not aware of all the fittings used for import and export. Could someone give an example?
I remember there were calculation examples in the textbook on chemical engineering principles. Calculating the fan pressure drop is also quite simple; it is basically done using Bernoulli’s equation, with the only difference being that the head value needs to be converted when selecting a fan. It needs to be converted to a standard gas head pressure.
The fan inlet usually consists of a shut-off valve, an air intake filter, and pipes; if it is not drawing air from the atmosphere, a filter can be used temporarily for operation. For outlets, there is usually one shut-off valve and one check valve; some may also have flow control mechanisms. I would like to remind the original poster that the Bernoulli equation can be applied to compressible fluids only when the pressure difference between two selected cross-sections is less than 20% of the pressure at the inlet, that is, (p2-p1)/p1