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3 x 120mm or 2 x 180mm for 360 rad - Page 2

post #11 of 14
Thread Starter 
Ok, understood thank you so much for the time to answer my doubts
There's something i can't undestand, and that's due to my native language not being english ... what's a fan shroud ?
post #12 of 14
Quote:
Originally Posted by Pedros View Post
Ok, understood thank you so much for the time to answer my doubts
There's something i can't undestand, and that's due to my native language not being english ... what's a fan shroud ?
Here's a good visual example of a fan shroud.

Basically it's the outer frame of a fan, but no internal parts. When you put it on a radiator as a spacer between the fan and the fins of the rad you create a zone of pressure which helps to eliminate the dead spot formed by the hub of the fan.
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post #13 of 14
A fan shroud allows for a "space" or gap between the fan itself and the object one wishes to cool, the benefit is that the air flow/laminar flow of the fan blades themselves do not hit the object prematurely causing turbulance and reducing effective pressure. 120mm fans tend to work best at in and around 25-35mm from the target to cool.

Very common to see peeps take old crappy 120mm fans, gut them for the fan housing, and use the fan housing as a shroud... (probably want to file/sand) rough edges though.
Edited by Soggysilicon - 1/23/11 at 4:14am
 
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Yukikaze
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post #14 of 14
Thread Starter 
Ohhh nice ... very nice, thank you all for the explanation
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