Generators are basically an engine with an alternator and inverter. The most common type generator engine is a 4-cycle gas engine similar to those on your lawnmower. The generator has three basic points of noise generation: Exhaust, crankcase, and generator/alternator whine.
There are ways to reduce the noise. The amount of noise reduction is only limited by how much money that you want to spend. It is important to recognize that the sound level of the generator can limit your ability to use it. You need to be aware that the noise will be heard from as much as 200 feet away. This will annoy neighbors who may have their windows open or are trying to sleep.
The noise also advertises the generator and may draw thieves (which we will cover later). I am currently testing a reasonably priced means of securing and quieting the generator. Check out the Generator Security section for more information.
Many people have attempted to reduce exhaust noise by adding an automotive muffler. My tests have yielded no identifiable reduction of noise. In addition, I have found that if you are successful and quieting the exhaust noise (without negatively affecting the engine’s performance due to increased back pressure) the noise from the crankcase and generator are almost as loud. So, the most viable answer to reducing the noise emanating from the generator is to build an enclosure for it.
Check back for the results of my prototype tests. I will be mass producing them and selling them through our store at
www.simplesurvivalgear.com .
Generator Noise
