Wheel types centrifugal fans may be classified into three basic types according to blade configuration.
Forward curved centrifugal fan diagram.
A forward curved centrifugal fan works best when high pressures against lower volume flows are required.
The most important thing to know is that backward curved blades are the most efficient whereas forward curved blades are one of the least efficient types of fans.
Forward blade backward blade and radial blade.
Typical centrifugal fan and covers the common terminology of these components.
The characteristic curve of.
They are suitable for high pressure applications as compared with axial flow fans.
Radial or straight blade each type has its own application range and limits.
Generally centrifugal fans have three types of blade.
Centrifugal fans are capable of generating relatively high pressures.
The graph below illustrates the optimum working area the volume flow is plotted along the x axis and the system pressure is plotted on the y axis.
Figure 1 centrifugal fan figure 2 axial fan each fan system has different types of wheels or impeller types.
They are the most budget friendly and the least efficient blade design.
Sometimes centrifugal fans are called radial flow type fans.
The centrifugal fans with forward curved blades 2l 90 o are designed due to the small dimensions and good static pressure characteristics of fans and such a recommendation refers to the fans.