Sound Guidance: Do You may need an Industrial Fan Silencer?

Industrial Fan Silencer for Fan Noise Reduction


You are likely not going to become in search of many “peace and quiet” on the shop floor, but you and your employees and colleagues are functioning there for hours at a time. You might even have to have to possess a conversation, or simply hear your self believe. Industrial fans can add for the noise level, but fortunately, you may achieve fan noise reduction by way of an industrial fan silencer. Get much more info about engine silencer


Calculating Noise Levels

With out having also technical here, you will discover three units of measure related to industrial fan noise levels, such as:


Fan Sound Pressure (Lp)

Fan Sound Power (Lw)

Decibels (intensity of sound (dB))

The Air Movement and Control Association (AMCA) supplies testing standards for fan Lw levels, which are derived through calculations greatest accomplished by your application engineer and/or an acoustical engineer. As outlined by a June 2017 post in Processing Magazine, typical industrial noise levels from a fan application can range from about 70-120 dB. You can also come across an in-depth discussion of fan sound measurement and calculation within the write-up, titled Understanding Fan Acoustics.


Your fan manufacturer needs to be able to offer you a strong start by providing you together with the expected sound power and pressure levels their fan will deliver based on its surrounding situations. Then, primarily based on your application, we will often advocate a fan silencer to handle any application-specific industrial fan noise reduction needs. Place just, we can hear the distinction.


Safety: How Loud is As well Loud?

Each and every person includes a distinctive interpretation and level of tolerance for excessive noise. You could not be happy until your music is “turned as much as eleven” when your friend might be blasted out on the area at 5.


But, in line with the Occupational Health & Safety Administration (OSHA), there are some noise level thresholds that employers must listen for, measure, adjust, protect and/or moderate based on length of exposure.


According to OSHA’s website, “OSHA has established permissible noise exposure limits to help avoid the standard threshold shifts in working. If the noise level exceeds 85 dBA on a time-weighted average, a hearing conservation program is required. The actual exposure limits are given in Table 1. (Review OSHA’s occupational noise exposure 1910.95 to get a full explanation.)


For an interesting and fun way to consider about and compare sound levels, check out the infographic in this World’s Loudest Noises article from The Air Conditioning Company. Be prepared - it is noisy!


Fan Silencer for Industrial Fan Noise Reduction

An open fan inlet or outlet is a common culprit behind excessive noise levels. An inlet and/or outlet silencer can adequately reduce the noise levels for many of these applications. You will find other factors and solutions to consider, but we are going to address those in future posts.


Factors in selecting inlet fan silencers include the kind of fan (centrifugal or axial), the configuration of your ductwork, the allowable drop in pressure, and of course, how much industrial fan noise reduction is required. At the discharge from the fan, you’ll need to have to also consider velocity, pressure and temperature control, as well as material handling requirements and corrosion resistance.


Once you assess all of these factors, you can be ready to select the optimal fan silencer for industrial fan noise reduction.   

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