CpTn_lAw wrote:Can someone here explain to me why a 3 bars combustion is louder than a 20 bars pneumatic (of the same size) ?
I've never understood why a combustion is louder...
This is just an educated guess but I'd think....
In a combustion, when you pull the "trigger" and create a spark, you're igniting a pretty accurate fuel/air mixture. This mixture has to combust, turning certain gases into other gases, producing byproducts and exhaust. It's a very inefficient process, and two big byproducts of this combustion are heat and noise. This is because not all of the energy can be used in the form of gases expanding and creating pressure (which is useful for launching spuds), so some of that excess energy escapes as heat and noise.
Basically, I think the answer is, because of the combusting, expanding hot gases, and inefficient combustion process, a lot of noise is produced that isn't produced by simply letting lots of compressed air out of a tank - like in a pneumatic.
BLB, confirm or rip apart my idea please?