The ways that silencers control fan noise

To fight against noise pollution, you need to work with someone that understands industrial silencer design. Having specialised in this field for years, we know how to create the perfect instruments for your facilities. As a result, you can use our silencers to reduce the sounds coming from various sources. This includes things like generators, compressors, and ductwork.

Industrial fans, regardless of their size, generate noise. They can be among the most predominant sources you can find in plants and other facilities. The intensity and magnitude of the sound shall change depending on several details. These include fan size, rotational speed, and horse power. There is also air flow, static pressure, and the number and type of blades.

Fans tend to deliver a substantial volume of air at low static pressures. However, the rotating motion of the vanes generates a broad band noise spectrum. The sound in mid to high frequency levels is normally heard to be louder. Since this is the case, you need to address it to achieve sufficient noise control.

Treating airborne noise

People tend to use silencers at the discharge and intake of fan installations. This is for the sake of tackling airborne noise.

Fan silencers typically need to have absorptive type designs. The reason is that they can offer superior attenuation in mid and high frequency ranges. We are talking about 500-8,000Hz. You need the most efficient absorptive materials here, especially if you have to deal with frequencies above or below those.

You achieve noise control via absorption. The acoustic energy that flows into your silencer is effectively absorbed into the fibrous substance that lines it. Here it becomes heat energy rather than noise. Some systems can use this heat for secondary processes.

Such silencers tend to have straight through designs. This ensures there is a low pressure drop and nothing to restrict the flow. The latter could cause more noise by increasing air turbulence, so it is vital to avoid it. Ideally air should be able to flow directly into and out of the silencer.

Talk to us about efficient industrial silencer design solutions

At Ventx, we are very careful when it comes to designing silencers. We must ensure that our products will match the application each time. To do this, we use acoustic modelling software. Thanks to it, we can analyse systems to determine the best solution down to tiny details.

So, if you require our industrial silencer design services, please don’t hesitate to contact us. We can help you to reduce the noise from all kinds of fans, whether it is HVAC, drying, conveying, or even combustion systems.