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Custom Cabinet enclosure with AC ventilation questions.

post #1 of 4
Thread Starter 
I recently installed a window air conditioner in my office which had little airflow from the central air. Being that it was the last vent in the ducting it got rather warm. Following the significant drop in temperatures I noticed amazing scaling on my CPU, it seemed that every 1c drop in ambient was worth about 2c on my cpu temperatures. This got me thinking, considering the overkill nature of my Air Conditioner (12000 BTU for a 10x10 room) I may be able to use the air conditioner creatively.

If I were to build/buy a cabinet with a intake fan directly in front of the vent on the air conditioner and an exhaust fan to exhaust the air into the room not only would I kill the heat at the source, I would drop my ambient to 22c. I have 3 computers I would put into the cabinet, my gaming rig, server, and PfSense router. My thought is that once sealed, not only would it hide the computers from sight, it would also give me a significant cooling advantage.

What are your thoughts on this idea? I think condensation will not be a problem on the computer components as if it were to form it would form on the outside of the cabinet. Also the unit I have is very efficient, yearly estimated cost running full blast 24/7/365 is only 80 dollars.

Thanks for your help.
post #2 of 4
Sounds like a good idea to me......mind you if you look at my sig you'll see I'm biased. biggrin.gif

I used to use a window ac unit in a completely sealed recirculating chamber/cabinet to get down to minus 30c.

And yes your theory is good, condensation will tend to form on the outside of the cabinet and of course on the ac unit cold rad.

Your components will always be above the temp of the surrounding air and so not attract condensation.

Good luck and keep us posted if you decide to go ahead thumb.gif
post #3 of 4
Wouldn't you get dew inside the case? I remember one year in winter my room got super cold and ran the TV and after turning it off a few hrs later I woke up to dew on the screen.

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Dionysus
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Dionysus
(11 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k msi mpower EVGA GTX 760 Corsair Vengeance 8GB 
CoolingOSKeyboardPower
h100i windows 7 Gear Head Corsair RM850 
CaseMouseMouse Pad
Corsair C70 G602 corsair 
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post #4 of 4
Quote:
Originally Posted by JBizz View Post

Wouldn't you get dew inside the case? I remember one year in winter my room got super cold and ran the TV and after turning it off a few hrs later I woke up to dew on the screen.

Sent from my SGH-M919 using Tapatalk

It's a different scenario, I'm assuming you were sleeping in the same room as your TV?....the fact that you are breathing out water vapor was creating a humidity in the room that could not be sustained by the low temp.....so the water vapor will deposit out....it will preferentially deposit out on cold surfaces and those that can conduct away the heat that is generated as it condenses, glass has a slightly higher thermal conductivity than most everyday objects, that's why your mirrors steam up in the bathroom....additionally you would see the condensation better on the tv screen as it doesn't get absorbed.

The pc build is different, there is nothing generating moisture in there, in fact the ac units evaporator acts as a de-humidifier removing water vapor from the air that is circulated into the case.
Edited by technogiant - 10/21/13 at 11:29pm
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