FRP fan is our common wind turbine equipment used in life are more common, however, we use fiberglass fans, you will find, glass blower will be noise, the inspection found major noise FRP fan from leaves . Here, we take a look at the source of the noise of it. FRP fan blade noise is mainly due to the rotation of the blade, eddy, turbulence, caused by resonance, etc., the following describes how these aspects Why will generate a lot of noise. FRP rotating fan blades will produce friction with the air, or shocks occur. Will produce the blades rotate with the air friction or impact occurs, the faster the speed, the higher the frequency of air access solution, its noise is more acute. The faster the speed, the higher the frequency of air access solution, its noise is more acute. Increasing the width or thickness of the glass fiber reinforced plastic fan blade, this phenomenon is even more pronounced. During the glass blower operation, the back wing will move its vortex, the vortex generation will not only reduce the efficiency of the fan, and will generate a lot of noise. To reduce this phenomenon, the installation angle of the blade can not be too large, and require a smooth curved blades, do not suddenly changed so much. FRP fan duct and the inner surface of the housing seams should be smooth, avoid rough, causing tearing sound, so FRP fan duct and the inner surface of the housing to be smooth at the seams as possible, avoid rough, causing tearing sound. And because successive pipeline will resonate, make small voice becomes large, resulting in more noise. At design time, you can sometimes add soundproofing material in the wind outside, this may be to reduce the effect of noise. 

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