Kinglet Posted July 27, 2014 Share Posted July 27, 2014 After face palming at the dyson "bladeless" fan, I wondered if anybody here knows any real bladeless fan designs. Even google only gave me results for the dyson "bladeless" fan.Share any bladeless fan designs that you know! Link to comment Share on other sites More sharing options...
Kryten Posted July 27, 2014 Share Posted July 27, 2014 Define 'fan'. If all you want is air movement, a pulsejet would do, although it wouldn't be very refreshing. Link to comment Share on other sites More sharing options...
Kinglet Posted July 27, 2014 Author Share Posted July 27, 2014 Define 'fan'. If all you want is air movement, a pulsejet would do, although it wouldn't be very refreshing.I would prefer refreshing non-lethal air movers but other concepts should also be posted Link to comment Share on other sites More sharing options...
N_las Posted July 27, 2014 Share Posted July 27, 2014 Maybe something like this, but with air instead of water: http://en.wikipedia.org/wiki/Magnetohydrodynamic_drive Link to comment Share on other sites More sharing options...
Kryten Posted July 27, 2014 Share Posted July 27, 2014 Maybe something like this, but with air instead of water: http://en.wikipedia.org/wiki/Magnetohydrodynamic_drive That needs conductive fluid; you'd have to turn the air to plasma in order for it to work. So, also not terribly refreshing. Link to comment Share on other sites More sharing options...
vger Posted July 27, 2014 Share Posted July 27, 2014 If you figure out a way of building a fan that doesn't require blades (or a ridiculous amount of energy), you've probably also made a tremendous breakthrough in hover technology. Link to comment Share on other sites More sharing options...
Bioman222 Posted July 27, 2014 Share Posted July 27, 2014 Now, this would be really loud, but what if you were to use sound to move air? Link to comment Share on other sites More sharing options...
vger Posted July 27, 2014 Share Posted July 27, 2014 Now, this would be really loud, but what if you were to use sound to move air?You can get a pretty good blast of air if you sit in front of the aperture of a subwoofer. Link to comment Share on other sites More sharing options...
Camacha Posted July 27, 2014 Share Posted July 27, 2014 I guess that you could call a piston compressor bladeless. With a long enough or adequately shaped tube or multiple compression chambers it should be virtually pulseless too. Link to comment Share on other sites More sharing options...
cantab Posted July 27, 2014 Share Posted July 27, 2014 http://en.wikipedia.org/wiki/IonocraftThese things will act as fans, though I can't imagine the draft would be very strong. Link to comment Share on other sites More sharing options...
magnemoe Posted July 27, 2014 Share Posted July 27, 2014 I would prefer refreshing non-lethal air movers but other concepts should also be posted Lots of way to get air to move without fans, you can use other types of moving parts who would set air in movement, downside is that they would probably be more noisy or more bulky. pistons is just one, airfoils who flaps is another. An ring who generate air movement like the first thought who strike you about the dyson will not work as I see it, it will work with salt water or other conductive stuff. Link to comment Share on other sites More sharing options...
GoSlash27 Posted July 27, 2014 Share Posted July 27, 2014 Positive displacement blowers don't have blades, but rather lobes. Likewise, centrifugal blowers have vanes. How loosely are we defining "blades"?Curious,-Slashy Link to comment Share on other sites More sharing options...
goldenpeach Posted July 27, 2014 Share Posted July 27, 2014 you're welcome Link to comment Share on other sites More sharing options...
N_las Posted July 27, 2014 Share Posted July 27, 2014 you're welcomeThose have blades. Link to comment Share on other sites More sharing options...
sal_vager Posted July 27, 2014 Share Posted July 27, 2014 An air compressor doesn't use blades and the compressed air can be piped to where you want it and released, if released at a lower or equal rate to the compressor charging the air reservoir you'll have a constant flow of cooling air, especially as it'll be colder as it expands.That's probably your only realistic option. Link to comment Share on other sites More sharing options...
lajoswinkler Posted July 27, 2014 Share Posted July 27, 2014 Piston compressing air which blows at you through a valve. Not terribly efficient, and quite noisy, too. Link to comment Share on other sites More sharing options...
Kinglet Posted July 28, 2014 Author Share Posted July 28, 2014 Those have blades.I detest these fans. They are just made for marketing. They look pretty, use blades and are called "air multipliers". Not to mention that they are ridiculously fragile. Dyson does not make quality items. He only markets well. Link to comment Share on other sites More sharing options...
Nuke Posted July 28, 2014 Share Posted July 28, 2014 there were ionic air purifiers awhile back. i remember seeing a case mod that hacked one into a pc, the rig was set up without any moving parts. passive coolers on everything, even the hard drives were replaced by battery backed dram drives (this was before ssds). so not only did load everything really fast, it was also noiseless. here it is:http://www.inventgeek.com/Projects/IonCooler/Overview.aspx Link to comment Share on other sites More sharing options...
lajoswinkler Posted July 28, 2014 Share Posted July 28, 2014 I detest these fans. They are just made for marketing. They look pretty, use blades and are called "air multipliers". Not to mention that they are ridiculously fragile. Dyson does not make quality items. He only markets well.They're very loud, too. I was stunned because I thought all the hype must be because of something, I don't know... good. But it was all a good marketing.there were ionic air purifiers awhile back. i remember seeing a case mod that hacked one into a pc, the rig was set up without any moving parts. passive coolers on everything, even the hard drives were replaced by battery backed dram drives (this was before ssds). so not only did load everything really fast, it was also noiseless. here it is:http://www.inventgeek.com/Projects/IonCooler/Overview.aspxSomehow I think this is not a good idea. Link to comment Share on other sites More sharing options...
Nuke Posted July 28, 2014 Share Posted July 28, 2014 i rather like the way they went to so much effort to isolate the hv supply from the rest of the machine. even built a little faraday cage around the thing to keep the noise down. Link to comment Share on other sites More sharing options...
dharak1 Posted July 28, 2014 Share Posted July 28, 2014 What year is that noiseless computer from? He says 2 GB is enough for most people when windows 7 needs at least 2 GB and I use 4 just browsing. Link to comment Share on other sites More sharing options...
Nuke Posted July 28, 2014 Share Posted July 28, 2014 (edited) the cpu they are using is a pentium d 940, which was manufactured from 2005-2008. so its pretty old skool by today's standard. if you built one of these today you would probibly use an ssd instead of the battery backed ram drives. Edited July 28, 2014 by Nuke Link to comment Share on other sites More sharing options...
Sky_walker Posted July 28, 2014 Share Posted July 28, 2014 (edited) I detest these fans. They are just made for marketing.As pretty much every thing ever made by humans. Marketing is what makes thing sale.They look pretty, use bladesNot on the outside, which is the core feature and allows them to produce more consistent flow of air - and that's pretty much the only reason why you might want bladeless fan, so I would say: it fulfils the purpose.Not to mention that they are ridiculously fragileNot particularly. If you treat them like you would treat any other fan - they'll work fine. If you'll start dropping them from heights - they'll break. No magic here. Plastic is plastic. Noone promised you aerospace-grade equipment capable of surviving mach 5 speeds, lol.What year is that noiseless computer from? He says 2 GB is enough for most people when windows 7 needs at least 2 GB and I use 4 just browsing.640K ought to be enough for anybody - that's my reaction to people suggesting how much RAM is "enough" Edited July 28, 2014 by Sky_walker Link to comment Share on other sites More sharing options...
Camacha Posted July 28, 2014 Share Posted July 28, 2014 Not particularly. If you treat them like you would treat any other fan - they'll work fine. If you'll start dropping them from heights - they'll break. No magic here. Plastic is plastic. Noone promised you aerospace-grade equipment capable of surviving mach 5 speeds, lol.Fans get banged around. If your fan can not handle that, you have made a bad fan. Link to comment Share on other sites More sharing options...
Nuke Posted July 28, 2014 Share Posted July 28, 2014 more research:http://en.wikipedia.org/wiki/Air_ioniser Link to comment Share on other sites More sharing options...
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