You will need 1060CFM flowing through your apartment (ie. out your kitchen window) if:
- ambient = 25*C
- W = 1800W
- ΔT = 3*C
See this link for more info:
A ΔT of 5*C would require 635CFM.
This could work if the 8 fans are operating in parallel and the ventilation resistance isn't too high. Keep in mind that 8 fans will be 9dB louder than 1 fan.Noise calculation (Click to show)
You may want to know the fan laws if you plan on undervolting:Fan Laws (Click to show)
You guys are thinking about this the wrong way. If you're going to be creating a custom box with ducting attached, why restrict yourself to fans that were built for computer cases? Get ONE furnace blower fan, duct it into the box, and then have another duct going out the window. Problem solved.
This man has the right idea. You'll easily spend $100-150+ in fans for this build using computer fans. yes, they maybe quieter, but for not much more money you can get a lot more airflow.
A centrifugal fan could definitely work if the price is right and there is space. However, they are generally not as compact, lightweight, or inexpensive as axial fans.
Edited by nawon72 - 6/30/13 at 3:03am