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Unread 07-06-2003, 07:03 PM   #5
sevisehda
Cooling Savant
 
Join Date: May 2003
Location: NY
Posts: 234
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In actualaty someone would have to find either the curve or at least some data points for the fan. Fans are just like pumps when it comes to the interaction between reistance and flow.
2 fans in series will up the pressure gradient which should increase airflow, by how much is anyones guess.

As for increasing air through a radiaor. I've read sucking air through is better than pushing, however I'm sure fan-rad-fan would be even better.

The problem with 2 fans is they make alot of noise because of the interaction of the rotating fan blades. There is alot of turbulence which mkaes plenty of noise and hurts flow. By going fan-rad-fan the radiators fins will straigten the airs flow and reduce the noise, compared to 2 fans on top of eachother.
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