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

Industrial Fan Silencer for Fan Noise Reduction


You are almost certainly not going to become searching for loads of “peace and quiet” around the shop floor, but you as well as your employees and colleagues are functioning there for hours at a time. You could even have to have to possess a conversation, or just hear yourself feel. Industrial fans can add to the noise level, but thankfully, it is possible to achieve fan noise reduction by way of an industrial fan silencer. Get much more facts about fan silencers


Calculating Noise Levels

Without having finding too technical here, you'll find three units of measure associated to industrial fan noise levels, like:


Fan Sound Pressure (Lp)

Fan Sound Power (Lw)

Decibels (intensity of sound (dB))

The Air Movement and Control Association (AMCA) gives testing standards for fan Lw levels, that are derived through calculations ideal accomplished by your application engineer and/or an acoustical engineer. In line with a June 2017 write-up in Processing Magazine, common industrial noise levels from a fan application can range from about 70-120 dB. You will also uncover an in-depth discussion of fan sound measurement and calculation within the post, titled Understanding Fan Acoustics.


Your fan manufacturer should be in a position to offer you a robust begin by delivering you with all the expected sound power and pressure levels their fan will provide primarily based on its surrounding circumstances. Then, based in your application, we'll generally recommend a fan silencer to manage any application-specific industrial fan noise reduction requirements. Place just, we can hear the distinction.


Safety: How Loud is Also Loud?

Every single person features a unique interpretation and level of tolerance for excessive noise. You might not be satisfied until your music is “turned as much as eleven” although your pal could be blasted out of your room at 5.


But, as outlined by the Occupational Health & Safety Administration (OSHA), you will find some noise level thresholds that employers must listen for, measure, adjust, protect and/or moderate based on length of exposure.


Based on OSHA’s website, “OSHA has established permissible noise exposure limits to help avoid the standard threshold shifts in operating. 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 for a full explanation.)


For an interesting and fun way to feel about and compare sound levels, check out the infographic in this World’s Loudest Noises short 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'll find other factors and solutions to consider, but we'll 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 have to have to also consider velocity, pressure and temperature control, as well as material handling specifications and corrosion resistance.


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

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