Use of silencers
In air conditioning ducts, generally due to the function of the fan, whether oxy or centrifugal fans, unpleasant noise is dispersed in the ventilated medium, depending on various factors such as fan type, fan distance from location, sex and type. The channels and branches, the gender of the surrounding walls and other factors are different, but in any case, the presence of these sounds will create a disturbing environment for the inhabitants. In the world today, channel silencers are used to solve this problem. These specially designed silencers, in addition to minimizing the impact on airflow, eliminate much of the noise generated by air conditioners.
The gender and design of these silencers
The design and design of these airborne silencers are such that they absorb the sounds produced at different frequencies and provide ambient sound conditions in the human hearing range (from 1 to 2 Hz). In this regard, the design of a suitable sounder that can provide these conditions in the environment is of particular importance, so that if the design is incorrect, the sounder will not only be able to absorb sound but also as a factor in creating sound It will make a lot.
The basis of silencer work
The basis of sound absorption in silencers is based on the absorption of waves in porous materials. As such, the sounder has parallel rows of sound absorbing material that absorb the moving waves along the channel after colliding with these sound absorbing walls. To increase the efficiency of this absorption, perforated metal sheets with high sound absorption coefficient are used. These perforated sheets, while directing the waves to the absorbent material, greatly dampen the waves themselves.