Centrifugal fans are capable of generating relatively high pressures.
Forward curved centrifugal fan diagram.
These fans are for low to medium static applications.
Typical centrifugal fan and covers the common terminology of these components.
Sometimes centrifugal fans are called radial flow type fans.
Forward blade backward blade and radial blade.
The characteristic curve of.
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.
Forward curve sometimes referred to as a squirrel cage fan forward curve fans are used in most residential and light commercial hvac equipment.
The video below discusses small low pressure centrifugal fans which can move air quickly at a pressure between about 100 and 2 000 pascals.
Generally centrifugal fans have three types of blade.
They are suitable for high pressure applications as compared with axial flow fans.
Figure 1 centrifugal fan figure 2 axial fan each fan system has different types of wheels or impeller types.
Wheel types centrifugal fans may be classified into three basic types according to blade configuration.
They are the most budget friendly and the least efficient blade design.
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.