Axial fans adhere closely to classical theory and require less know how than centrifugal fans.
Axial flow fan diagram.
The fan is designed to produce a pressure difference and hence force to cause a flow through the fan factors which determine the performance of the fan include the number and shape of the blades.
Axial flow fans this manual is for installation operation and maintenance of all caldwell axial fans with serial numbers.
The flow is axial at entry and exit.
The inlet and outlet velocities of the air through the blades will be the same for axial fans and different for centrifugal fans v ᵢ and v ₒ.
The different blades can be characterized as shown in the capacity diagram below.
The blades of compressor are of aerofoil section.
Wiring diagram 23 28 af12 751 23 af18 11 24 single phase 230 volt 25.
Fig 3 shows the velocity diagram for the air flowing into the fan inlet and out of it outlet.
Conversion 230 460 volt 29 figure 23.
In a mixed flow fan the air flows in both axial and radial direction relative to the shaft.
The blade profile and variation of pressure and velocity in the stage are shown in the fig.
The shape of your blades and the direction they travel will define the performance characteristics of your fan.
Axial flow fans have developed rapidly since the second world war due to the creation of a range of high strength aluminium alloys.
Conversion 460 230 volt 30.
Mixed flow fans develops higher pressures than axial fans.
Wiring schematic for 575 volt three phase axial fan 28 figure 22.
An axial fan is a type of fan that causes gas to flow through it in an axial direction parallel to the shaft about which the blades rotate.