If you use a fan at home to keep cool on hot days, you’ll know how noisy they can be. Industrial fans are larger, spin faster, and deal with a much higher volume of air or other gases. As a result, they can generate dangerous sound levels. It can get even worse when you consider that ducts and air handling units can amplify the sounds. In many cases, it is a good idea to use in-line silencers or other types to reduce the noise.
Two options
Fan silencers are the best option because they deal with sound close to the source. You can install them on the inlet or discharge side of fans. In fact, sometimes it is best to have one on each side to minimise the noise.
Interestingly, there are actually two different ways the silencers can work. The first features materials to absorb sound, turning the waves into heat. They can also have a maze-like design. This works to reflect and dissipate noise. These models are known as passive fan silencers because they work without needing any kind of power.
The second option uses an interesting phenomenon to tackle noise. They actually work to cancel out the sound waves by emitting sounds with the opposing amplitude. When the waves meet, the interference destroys them. These models are known as active fan silencers; they need a power source to ensure they can continuously generate the opposing sounds.
Generally, most companies choose passive in-line silencers or other models for industrial fans. They tend to be more reliable because there is no chance of malfunction or power loss. Plus, they can provide long term service with very little maintenance or upkeep. Even better, there is more versatility on the engineering side of things, so you can design them to suit various needs.
Things to keep in mind
Getting help from an expert like Ventx is vital if you have noisy industrial fans. While silencers may seem simple, it takes a lot to design them. Plus, they must be engineered precisely to achieve the best results.
Working with a specialist, you can consider all of the important details. The main two are acoustic requirements (how much do you need to reduce the sound?) and the maximum permissible pressure loss. In addition, you should think about the operating conditions, such as temperature, airstream specifics, and the setting. Plus, there will likely be size and weight restrictions to factor in.
An interesting thing to look at is the length of the silencer. In many cases, if you can accommodate them, you’ll get better results with longer silencers. As you increase the length, you also boost the chance to absorb, reflect, and dissipate more noise. However, it’s important to keep in mind that this can increase the pressure loss too.
Talk to us about in-line silencers for noisy fans
Noise is a serious hazard in many workplaces. The louder it is, the higher the risk of workers suffering health issues or having accidents. It can have a direct impact on wellbeing and performance. In the worst cases, it can lead to legal problems, staffing trouble, and harm the environment too.
Ventx is the perfect team if you need some help. We combine our knowledge of acoustics and engineering to deliver effective solutions for our clients. Most importantly, we’ll ensure they are engineered precisely after creating a model to calculate the level of noise. Whatever industry you are in and equipment you use, we’ll support you.
So, speak to us today about in-line silencers or other models. We’ll create the perfect design for every setting, ensuring efficiency and performance.
