Most people who own generators are merely satisfied with the fact that the generators give them power in emergency situations or during power blackouts. Generators are undoubtedly important, but what about the noise they produce?
People are a bit disappointed by the generator’s noise. Generator noise usually ranges between 60 and 100 decibels, and it is caused by a mix of engine vibration, fan noise, alternator noise, exhaust noise, and induction noise.
After learning where generator noise comes from, this article will explain how to make your generator quiet as cricket for camping. The methods that I described are helpful and make camping enjoyable for everyone.
Now, before we dive into it, let’s find out why generators make such a loud noise.
Also Read: How to Power a Refrigerator by Generator?
- Why Do Generators Make So Much Noise?
- 6 Ways – How to Make Your Generator Quiet as a Cricket for Camping
Why Do Generators Make So Much Noise?
In their simplest form, generators are engines, so they’re loud. The generation of energy by motorized devices creates noise, and generators are no different. Generators feature moving parts and combustion engines, which also create noise.
Generating an electric current typically involves converting mechanical energy into electrical energy using petrol engines. In modern models, electricity is delivered directly or charged directly through electromagnetic induction.
The engine and exhaust are the two most important sources of generator noise.
Mechanical energy is generated by the generator’s engine. Pistons, which are connected to alternators, are powered by gasoline. The intricate workings of a generator engine do not need to be discussed in detail here.
A generator engine’s sound is important to us. There’s a kinetic (vibration) sound that originates from the generator’s waste energy. The generator transmits these vibrations to surrounding structures, through its feet into the ground.
Besides emitting waste gases, the exhaust of the generator also emits sounds. Sound is produced by gas under high pressure inside the engine. It can sound like sputtering or popping as it escapes through the exhaust.
Engine impact sounds are produced by the engine, while generator exhaust sounds are produced by the generator.
What Is The Decibel Level Of A Generator?
An average generator’s decibel level varies considerably depending on numerous factors, but it generally falls between 60dB and 100dB. Backup generators tend to be quieter than portable generators because the fixed generators tend to be heavier and larger, producing fewer noise emissions.
The noise level of a generator is influenced by many factors. You will, however, need to quiet your generator if you consider it to be too loud.
6 Ways – How to Make Your Generator Quiet as a Cricket for Camping
how to make a generator quiet for camping? Well, these tips will make your generator as quiet as a cricket.
1. Place It on a Sound-Absorbing Mat
You can easily reduce generator noise by getting a soundproof mat, which is a simple solution. The vibrations are immediately absorbed by this pad, significantly reducing that annoying buzzing sound.
It is easy to install, and no mess or complicated setup is necessary. It can also be transported easily, so you can bring it along on camping trips or use it in the garden.
Rubber, foam, thick carpets, or even blankets will work well as sound-absorbing materials. Mass-loaded vinyl is another excellent soundproofing material that can be used as a mat and can do an amazing job of absorbing noise.
2. Get a New Muffler
Even if your generator has an existing muffler, it may not be the optimal one. The silencer mufflers come in a variety of types, each with its own internal components.
The purpose of a muffler is to reduce exhaust pressure. There are bends and holes inside the muffler. Air pressure in this “maze” is reduced by going through it, which reduces noise emissions.
It is possible to greatly reduce generator noise by switching out your existing muffler for a silencer. Noise emissions can be reduced by up to 15dB, depending on the muffler.
The manufacturers of many generators manufacture backup mufflers for their models. However, universal silencer mufflers can be purchased quite easily if that’s not an option. You will need to check the diameter to make sure it fits.
Mufflers from cars or motorbikes can be used as a temporary solution. But such exhaust systems will not be able to help much if they aren’t the right size.
3. The Exhaust Pipe Should Be Redirected
This will solve your problem quickly if you do not have any materials to construct a soundproof enclosure. It won’t be able to stop vibrations caused by generator engine noise, either, since it only works with airborne noise.
The generator exhaust should be pointed away from you. If possible, position the generator so the end that faces you is facing away from you.
This can be done by pointing it directly up or at any angle. However, in terms of quieting a generator, it is not the best solution since it does not use any strategies that actively reduce sounds.
It’s best to go with this method only when you lack noise-reducing materials and are in a hurry.
4. Move Your Generator At a Distance
The generator can also be moved away from your house in order to make it quiet. Taking sound theory into account, sound intensity increases as the square of the distance from the source decreases. Basically, the sound gets quieter as you move away from the source.
If you own an RV or a house, you should move your generator. While this suggestion has some limitations, such as the size of the backyard or the size of the camping plot, it is a good place to start.
You might also want to purchase an extension cable so that you can use the generator.
5. Build a Soundproof Generator Box
Building a soundproof generator box is one of the most effective solutions. The baffle box absorbs or dampens sound waves close to where they originate.
You’ll need these materials to build a soundproof box for your generator:
- Mass loaded vinyl
- Foam mats or acoustic foam
- Green Glue
Your generator must be enclosed in a box large enough to cover it. A layer of mass-loaded vinyl should be stapled or screwed to the inside, and gaps should be filled with green glue. Make sure to use screws with wide heads. Add as many support points as you need to sustain the heavy layer of MLV.
Finally, apply some acoustic foam on top. Green glue can block the open structure of the foam, so stay away from it. Spray adhesive is a better option.
Air must flow in and out of the foam through holes. It will overheat and fail if you do not do so.
You can use a generator box to reduce the noise your generator makes.
6. To Quiet Exhaust, Use Water
It may appear surprising, but you can muffle the sound of your generator exhaust by simply adding water to a hosepipe! Not only is it effective, but it is also quite affordable.
Put one end of the hose in the water and the other end on the generator exhaust while placing the hosepipe in the bucket.
In order to prevent water from getting into your generator, you can cut a small hole in the hosepipe. You can muff the sound of your generator with the water because it absorbs vibrations.
The only thing you need is a bucket and hose, and you should have access to water in your area and your water muffler is ready.
7. Install a Sound Deflector
The last one is installing a sound deflector. A sound deflector can make a big difference if you store your generator in a closed space, such as an outbuilding or a shed, and you intend not to move it anytime soon.
This won’t soundproof anything, so keep that in mind. A sound deflector’s sole purpose is to deflect sound, which means there’s a lower chance of you being affected. Therefore, the amount of airborne noise should also be reduced.
There are several different sound deflector options available, and these are great temporary solutions until you find a permanent one. This option could be combined with several others to maximize its effectiveness.
These are your 7 best tips for getting your generator as quiet as cricket and reducing its noise levels. You have lots of options to choose from, so no matter what your budget is, whether you want something temporary or permanent, and whether you’re an expert or just starting out, you can find something useful.
The purpose of this article is to give you a good understanding of how to make your generator as quiet as cricket for camping. If you found this article helpful, please pass this along to anyone you know who likes camping. Do not forget to leave a comment below