How to determine this fan?
Thread Content
The system works as follows: Fan 1 – pipeline – Fan 2 – pipeline – Fan 3. When the first and third fans are determined, what factors should be taken into account when selecting the second fan regarding head pressure, and how is it calculated?
The inlet pressure of the second fan is the outlet pressure of the first fan minus the pressure drop between the first and second fans. The outlet pressure of the second fan should be the inlet pressure of the third fan plus the pressure drop between the second and third fans, which represents the pressure difference across the inlet and outlet.