I would counter that a small fan spinning at high rpm makes more (annoying) noise than a large fan spinning at a lower rpm.
You’re basically trading energy to move higher volume of air. The fan can move smaller amount of air at higher speed, but larger amount at a gentle breeze feels nicer and helps with circulating the air in the room better.
You could achieve it by taking that exact motor and slapping a bigger fan onto it, but that looks less cool and probably produces more noise? Maybe there’s some efficiency differences if the motor is better at spinning fast, but as a spherical cow in vacuum it should be similar.
Threeme2189@sh.itjust.works 1 week ago
666dollarfootlong@lemmy.world 1 week ago
But due to it being hidden maybe it can be isolated easier?
GTG3000@programming.dev 1 week ago
Yeah, the fan being completely shrouded in plastic will dampen a lot of noise. And for the price, the fan is probably well balanced and somewhat optimised. From what I recall, the dyson bladeless fans are near silent.
rethnor@lemmy.zip 1 week ago
So it’s like a lever, you aren’t just magically getting more volume at the same speed without more power, it just slows down when interacting with the outside air, ie conservation of momentum
Alcoholicorn@mander.xyz 1 week ago
It’s cheaper to make electric motor spin fast with low torque than slow with high torque, a ceiling fan of the same cfm needs a bigger motor than a standing fan.