The shape of your blades and the direction they travel will define the performance characteristics of your fan.
Axial flow fan diagram.
The different blades can be characterized as shown in the capacity diagram below.
Fig 3 shows the velocity diagram for the air flowing into the fan inlet and out of it outlet.
The blade profile and variation of pressure and velocity in the stage are shown in the fig.
In a mixed flow fan the air flows in both axial and radial direction relative to the shaft.
Wiring diagram 23 28 af12 751 23 af18 11 24 single phase 230 volt 25.
Axial flow fans this manual is for installation operation and maintenance of all caldwell axial fans with serial numbers.
These permit running at the rotational speeds necessary to produce worthwhile pressure.
Mixed flow fans develops higher pressures than axial fans.
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.
Conversion 230 460 volt 29 figure 23.
The flow is axial at entry and exit.
Conversion 460 230 volt 30.
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.
The blades of compressor are of aerofoil section.
The axial flow compressors can be of impulse type or reaction type.
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.
16 17 b the difference in the shape of axial flow turbines and axial flow compressor is illustrated.