Topic: Acoustic Insulation for Mining Rigs (Read 375 times)

I believe, Ivanko88. 
Sometimes you don't need complicated things to get the desired results.

But of course it will be good to see this test, because it will certainly help more users.

The noise most miners make is consistent.

Get two layers of plasterboard inside a dedicated room, with a 2.5cm air gap between, and then observe the results.

it actually is that simple.

and as for new houses and acoustic problems, thats because they are dealing with different noise frequency ranges outside... such as a car beeping, a lawnmover, radio sets, neighbours shouting... the noise miners make is a different frequency range.

anyway when I have time I will make a video using my Decibel meter from inside the miner room, then outside the plasterboard setup, then outside the entire room.

I have a mixture of miners, S17+, Ebang, Avlon, GPU...

It's not that simple.

I understand that it works in most cases and for what it is intended for. But if it were that simple, many of the new constructions of houses would not have as many acoustic problems as they do (where neighbors hear each other from one side to the other). 

You wont need 4 boards ontop of each other... and even still lets say you did, they are 1.25cm thick. so you lose 5cm one wall 5cm the other wall... negligible....
Its a much better idea than overpaying for these materials the companies like to claim "Took 10 years of NASA super conductor research" which then lets them justify the £200 per sqm price tag.

£5 sqm plasterboard beats any of that overhyped rubbish.

If you did a setup of bedroom wall - 2cm airgap - 12.5mm plasterboard - 2cm air gap - 12.5mm plasterboard. you will most likely be more than happy... and you can add more miners to the room as you please without having to spend silly money on custom materials

Furthermore, acoustics is a very scientific field, different materials effect different pitches and the rest of it.

The only disadvantage of this technique is that it shrinks the space of the room. Especially if you have to place more than 4 boards on top of each other.

But if you want to make it extremely cheap, you always have the egg cartons, which don't seem like it, but even have an interesting soundproofing effect.

Instead of all these special materials and boxes etc, the better and most cost effective way is to use plasterboards and build room inside room...and if its not enough dbi reduction? then put another set of boards, until you get the rating you need...

in the UK its £10 for 1.2m x 2.4m board... you can do avg whole room for £100 - £150.

https://www.wickes.co.uk/Knauf-Plasterboard-Square-Edge---12-5mm-x-1-2m-x-2-4m/p/104123

minimizing the sound generated from the mining rig will be important .
read an article sometime back today on some locals from a new Zealand town complaining and protesting against a new mining company.

There is insufficient time to map out several solutions, but there are a couple of things I would do first.

Measure the acoustic spectra.  Audio analysis software which runs on a cellphone will do it adequately.  The microphone is adequate, and most cellphones have enough CPU to do a 4096 or better FFT.  Once you know how much energy you have, and at what frequencies, you can start to design an enclosure

My guess is that you will have little energy at 120 or even 360 Hz, because most sound enclosures are targeting motors and motor generators and hydraulic pumps. 

My guess is that the bulk of your energy will be above 1 kHz.  Looking at the noise of my server, next to me, which is not as loud and has slower fans, etc. it has bimodal peaks at 1500 Hz and 3800 Hz.  So I would pick materials and an enclosure to maximally attenuate those frequencies.  My guess is that a polyurethane foam works well.  Like to stuff used in packing material.  In fact I would start with used packing foam sheets, because they are free.  I am talking about the stuff which has hills and valleys cut into it.

Good luck.  If you have more questions, ask.  I have taught acoustics at the university level.

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The main things to keep in mind is that:
a) for all intents and purposes the spaces between the sound baffles are air ducts and air flow through them must be calculated. Those 90-deg bends will introduce considerable resistance to the airflow so include that.

b) remember that you are calculating the airflow rate as in CFM or M³/min. The air velocity should be kept very low as velocity is what drastically increases airflow resistance through ducts and around corners.

There should be scads of calculators found online. Just search for "calculating HVAC duct airflow"

Exactly. This aspect has to be carefully calculated in order to get a suitable location for the situation we have.

The graphic shows an exhaust fan that pulls in cool air while exhausting the hot air. Just no true indication of the size which of course all depends on the heat load.

No more!
It's not enough to just add cool air to the cabin. Because sooner or later the air ends up getting stale, and fresh air can come out instead of hot air.

The air must be circulated. You have to force the hot air out. And the best way to do it is to force the entry of air, in the place where the hot air is. This will cause the hot air to move downwards or to the opposite location so that it comes out the right place.

Bearing in mind that we are working with two important elements: air circulation; acoustic conditioning. It is necessary to balance the two things in order to make the structure viable.


In large halls, in addition to the acoustic element no longer being so important, the cooling is done using air extractors.

Yes it does but -- in confined space forced air systems the layout shown is correct. What they are doing by feeding the cooler air upwards at one end of the enclosure is sweeping the hot air from above and forcing it downwards at the end to give a more or less circular airflow inside the enclosure to avoid creating dead spots. They are also relying on the motor fan to provide horizontal airflow towards the inlet side of the box where it hits the wall and moves up to mix with the cooler inlet airflow.

Note that the design is only for small(ish) enclosed layouts - not large layouts with aisles of server/miner racks. Once you dealing with rooms full of gear the airflow's are radically different.

Simple fact, you can't enclose normal miners.
They need air flow, and air flow doesn't go through sound proof walls.

Even liquid cooled miners require some heat outlet.

... and 'STRUCTURE OF RIG" is wrong.
Hot air goes up ...

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I will post about this problematic as soon as possible.

I know that we can do something about noise

Since this is certified material, prices are not low. Depending on the models, the plates are between 1 and 2 square meters.
The price per square meter can be around 80~150$.

The final cost will depend on the area you want to isolate. If it is a small rig, maybe a plate will be enough.

Do you have price information for these insulators since the company website is not listing them? I'm guessing most of these are going for $15 for 12pcs given that's what other insulators are selling for in retail, but depending on the quality some of these could be more expensive.

You might be able to double-insulate say a small enclosure containing 3 or 4 miners for a few hundred bucks.

I will post in on this.

I will limit it to a one miner setup an s17 pro

it does 55th at 1850 watts with vanish firmware.

and it does 50th at 1750 watts.

this allows slower fans.

if you are willing to lower hash to 36th it will do 900 watts and have slow fans.
it is under 60db. I would argue it is the way to go .

I lean a piece of plywood against my garage wall.


   / l
  /. l and i am under 50db I added a movers blanket and I am at 45db