Cooling fans in parallel and series operation
Release time:2018-3-19 Browse times: 9535
Parallel operation
Parallel fan and individual fan operation curve
Parallel and series operation
Parallel operation is the parallel use of two or more fans. The volume of air generated by the parallel connection of two fans is only twice the air volume of a single fan in free space conditions. When the parallel fan is used in the case of higher system impedance, the higher the system impedance, the more the parallel fan can increase. The lower the air volume. Therefore, the parallel application is used only with low system impedance, ie the fan operates with almost complete free air supply.
Series operation
Series fan and individual fan operation curve
Series operation is using two or more fans in series. The static pressure generated by the two fans in series can be doubled under the condition of zero air volume, but in the case of free space, the air volume cannot be increased. Adding a series fan increases air flow in systems with higher static pressure. Therefore, systems operating in series with high system impedance can achieve the highest results.
