View Full Version : parallel fan stacking
Has anyone tried stacking fans in parallel, like a 'Y'? 2 fans sucking air in air at the top and blowing it out the bottom. Would this produce better results then stacking the fans in series?
Random Nonsense
08-31-01, 01:30 PM
if you mean a Y shaped duct, 2 fans on the uper part, with one opening, you should double the CFM! surprised no on else thought of it! great idea!
Crazy Jayhawk
08-31-01, 01:57 PM
You might not get exactly double the CFM, but you'd certainly get more air and it'd more faster too. Think about how air moves faster when forced through a smaller opening. Bernoulli's principle at work. :)
Random Nonsense
08-31-01, 02:02 PM
yup, it should be near to double thouh, a bit less due to friction losses
6 lbs of s..t, in a 5 lb bucket
http://www.ecom-answers.com/Nidecs.jpg
no, very poor performance from 4 Nidec 7 in. 240 CFM fans in parallel
I wound up stacking them in 2 pairs
same results with 2 120mm Panaflos
look at the P-Q curve for your fan
unless it is HIGH speed, and thick bodied, it will NOT take much backpressure
stack 'em
be cool
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