Dust extract fan noise reduction : food industry
- sweet manufacture
A sweet factory received complaints of noise disturbance due to
a loud "hum" sound that was keeping local residents
awake at night. The source was a dust extract fan that exhausted
air through the factory wall. A normal industrial noise control
silencer would not have provided enough reduction in the fan noise
- a very high noise reduction was needed. So, we purpose-designed
a silencer specifically for this fan. Because the "hum"
was the most noticeable and annoying feature of the fan noise, we
designed the silencer specifically to provide a very high noise
reduction at the "hum" frequency.
The silencer was a highly successful noise control solution, reducing
the "hum" by a massive 25 dB, making the fan inaudible
at the nearest house.
Fan hums, drones and whines are a very common cause of industrial
noise nuisance. A purpose-designed silencer is a noise control solution
that can be fitted to any type of fan, providing the twin benefits
of high noise reduction and very low flow resistance. Low flow resistance
is important to avoid impairing fan suction or extraction performance.
To achieve a high noise reduction, common types of industrial silencer
usually have acoustic absorbent splitters located within the airflow,
and this can create a very high flow resistance, increasing the
load on the fan and lowering the fan airflow. A purpose-designed
silencer avoids this problem - it can provide a higher noise
reduction than a standard silencer, and with considerably lower
flow resistance.
Some more fan noise control examples are shown on the Industrial
Noise Control - Noise Nuisance and the Industrial Noise Control - Noise
at Work pages of this web site with costs.
To find out how we can help you to control fan noise / find a solution
to a fan noise nuisance problem, or to receive our company brochure
or a quotation, please click on contact us for fan noise reduction and control.
Advanced Noise Solutions Ltd
could help you save £ thousands on noise
nuisance solutions
Fan Noise Reduction
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