Mufflers & Silencers For Generators: How To Reduce Engine Noise 2020
There is no doubt that generators are extremely useful in homes, offices, commercial premises, factories, hospitals and even at construction sites.
They come in very handy whenever there is a need for mobile power. Further, in case of blackouts and power outages, these generators come in very handy.
There is a growing demand for generators. They come in different sizes, shapes, capacities, and configurations. They are run on diesel, petrol, gas and even electricity.
They help in lighting up homes, offices and other commercial premises where power may not have reached due to various reasons. Generators are extremely useful especially in natural disasters like storms, earthquakes, and floods when the conventional sources of power could be disturbed quite badly.
While there are quite a few positives as far as generators are concerned, there are also some downsides to it. Noise pollution is certainly a big problem with many generators. Furthermore, some generators are also notorious for being the major source of CO2 emissions.
In this article, we will show you how to quieten your generator.
- 1 The Importance Of Silencers Or Mufflers
The Importance Of Silencers Or Mufflers
While the emission of sound pollution from generators cannot be completely stopped, we can reduce it and keep it to a bare minimum. This is where the role and importance of mufflers and silencers come into play.
They are being used for many decades and perhaps even centuries for dealing with the menace of sound pollution emanating from generators. We will get started by understanding the basic definition of muffler or silencer. To put it simply, these are devices which are attached to the exhaust pipe of generators to quiet the sound.
They play an important role in suppressing and reducing the noise that the generator produces. It would be interesting as to how these devices help in reducing the sound levels. They could be very vital, important and useful, especially in situations where the generators may have to run for hours and perhaps days at length.
What Is The Sound Level Of Generators?
While we all know that generators are quite noisy, we may not be able to know how loud they really are. This has to be measured with the help of decibels. It would be pertinent to point out here that most generators have a sound level of around 70 to 100 decibels at 23 feet. This is based on the standard industry measurements. It is just an estimate and there are other factors that could also influence the noise levels of generators. It would depend on the model, make, the size, capacity, thus, the decibels cannot be painted with the same brush.
Your choice of mufflers and silencers would depend on the make, model, size and capacity of generators that you are using.
Buy A Less Noisy Generator
As mentioned above, it would not be possible to completely eliminate noise when the generator is running. However, if you ask experienced professionals, they would vouch for buying a generator that is less noisy. Yes, such quality generators are priced higher, but the value for money that they offer has to be factored in.
Sound pollution is harmful to our health and therefore this point should be kept in mind while choosing a generator. But it is quite possible that not all of us would have the wherewithal to buy an expensive generator. It is therefore quite obvious that we will have to fall back upon mufflers and silencers to take care of the noise pollution emanating from the generators.
What Is The Need For Silencing?
When you silence your generator and cut down on noise as much as you can, you are offering quite a few benefits. To begin with, the people who are in and around the vicinity of the generators would be able to concentrate better on their jobs. Rather than being bothered by the noise of these machines. You also could be disturbing your neighbors because of the noise made by these machines.
It could also be a health problem and could lead to increased levels of stress, tension, and other such problem, especially in cases where the generators have to be used for a long period of time.
There have been instances where regular exposure to sound pollution could lead to increased blood pressure levels and also various neurological problems. It also could be a cause for depression in some persons.
Hence, reducing the noise of silencers is not a choice but a critical necessity. The role of mufflers and silencers is very critical, to say the least.
How Does A Muffler Help?
When you do your research and then choose the right muffler or silencer, you can reduce the sound levels by around 10-15 decibels.
However, you would be better off having some reasonably good understanding as to how these mufflers and silencers work to keep sound out of bounds for those who are working around the generators.
These devices trap the sound emanating from generators and release them slowly. This reduces the noise of generators but quite a few notches.
Some Common Types Of Mufflers And Silencers
There are many types of mufflers that could be used for reducing noise from generators. Plywood is considered to be one of the cheapest yet effective ways to reduce the noise levels emanating from your generators.
You could place plywood around the generators and this alone could bring down the noise levels by as much as 10 decibels. This certainly will make the noise bearable not only for you, your family but also your neighbors.
You should choose plywood scraps that are big enough to go beyond your generator. You should create a box-like construction which will push the noise to the ground instead of dispersing it.
If you are looking for a solution that is more complete and comprehensive, you could go in for a silencer box. This is basically a silencer box that has to be installed over the generators. It works the same way as that of a plywood construction but it is more thorough and complete.
It requires some bit of woodworking but it can reduce the sounds from generators effectively and efficiently. You have to build an outer and inner box on your frame and fill it with insulation materials.
You could use foam as an insulation material. This is a good and thorough option to reduce sound levels by around 16 to 18 decibels.
How To Keep Noise Levels Down?
While the above two methods could help to bring down levels quite a bit, you could also look at a few more tips. We are sharing a few of them and we hope it will be useful to you in more ways than one.
This might look like a benign solution, but at times we tend to overlook this fact. You may have to spend some extra money to have the generator installed in some open space and away from the home and neighbors.
If you keep your generator in a room or closed space of around 23 feet you can be sure that it will produce around 70 to 80 decibels of sound.
This can be reduced quite a bit if the generator is located in an open space. Keep and exhaust facing away from the home. If you are unable to move your generator away from your home, this could be a good option. You could make the exhaust pipe a bit longer and taller and ensure that the sound gets released at a higher altitude. Try and deflect sound as much as possible.
This is another simple, time-tested and proven way by which you can keep sound away from your home and neighbors. You could keep the generator mounted behind a shed.
Alternately could have it mounted behind a solid object and this will certainly absorb quite a bit of sound. If you have a garden or backyard, you could try and mount the generator behind a cluster or trees or other such natural obstacles. This could help a lot in reducing noise levels significantly.
Always install your generator on a strong base. You should try and avoid putting them up on concrete or wooden floors. It will create quite a bit of noise because of the vibration. Instead, you would do better to install in a sandy or grassy place. But it should be even and firm. Grass absorbs quite a bit of vibration and sound.
It would not be a bad idea to build a good platform consisting of sand and other materials which have good insulating properties.
In fine, while noise pollution coming out from generators is quite a big nuisance, there are many ways and means by which you can handle it. While you could buy an expensive generator, using home-made solutions could also help in reducing this problem quite a bit.
You also could take the help of professionals should believe that you may not be able to handle it on your own.