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 Post subject: Anybody tried 1 of these fans?
PostPosted: Thu Aug 12, 2004 12:03 am 
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Just wondering if anybody has used 1 yet and if they noticed any decrease in temps when using it.


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PostPosted: Thu Aug 12, 2004 1:53 am 
Boy in Black
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Nope, but I just wanted to post my opinion on the design. I really feel it's a gimick design, and hardly functional. The first thing to note is the keyword "working Principle". Just having the diagram showing "compression" between the two fans is plain foolish. I also don't understand the theory of having the fans going in two different directions...this is directly importional to the desired result (can't have "compression" as long as the air is moving correctly, now would I WANT compression). The correct idea to state would be that the two spinning in different directions and having a flipped-pitch on each fan is that the air doesn't impact the blade tip to make sound. In theory, there's a boundry layer or turbulance to act as a buffer. That's theory though. Some jet engines use this idea on their inlet fans to keep the noise down...among other things.

But, besides my own outlook on the freak of nature, they're claiming some decent specs. 3000 RPM, 40+ CFM, and at 22db's is pretty nice for around $20. I'm just wondering where or how they are measuring this, as it's not made clear. But it also says Sleeve type bearing, so I can only assume that it will grow loud with some hours put on it. I've just never had a sleeve fan stay quiet.

Just my outlook. Sounds funky.


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PostPosted: Thu Aug 12, 2004 8:41 am 
Willamette
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seems a bit strange....i wouldnt get it...the description and thoery seem flaky


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PostPosted: Thu Aug 12, 2004 3:02 pm 
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yeah, it looked pretty gimmicky to me, just wondering if anybody had actually tried it and seen any temperature drops between using it and a comparable regular fan.


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