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ducting cold air to my hsf?? help me out!

post #1 of 27
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hye guys... i live in canada and around this time of year its contantly -10c or below... i wonder if put a tupe from my heatsink fan to outside my window and seal off the window so the cold air doesnt come into my room... so like i would duct the air from outside (-10c) to my hsf would taht work? condensation?
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post #2 of 27
Quote:
Originally Posted by the_teflon_don
hye guys... i live in canada and around this time of year its contantly -10c or below... i wonder if put a tupe from my heatsink fan to outside my window and seal off the window so the cold air doesnt come into my room... so like i would duct the air from outside (-10c) to my hsf would taht work? condensation?
I wouldn't do it unless you had a dehumidifier inline with the tube. You'll be sucking in cold air but there is a lot of water in that cold air since it's snow.
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post #3 of 27
Thread Starter 
so u mean put a dehumidifier in the tube?

if i had a wc setup abnd i placed the rad outside my window... at lets say
-40c (which happens here sometimes) wouldi get subzero temps? would i need to watch out for condensation?
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post #4 of 27
Cold air does not hold very much water. There would probably be more danger in him cooling down the humidity in his ambient air and causing condensation, but I doubt that would even be a problem.

With the whole WC setup you'd probably have to worry about your water freezing, that would be the more dangerous scenario as it would stop the flow of water to your blocks and you would likely overheat, possibly damaging hardware.
    
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post #5 of 27
the_teflon_don that is a very good idea and many have done similar things in the past.

While condensation should be a concern, it's not the cold air outside you have to worry about. The winter air outside is by default very dry (unless it's snowing or raining), that's why people use humidifiers in the winter and dehumidifiers in the summer in their homes.

Where condensation might come into play is, if you duct enough cold air into your PC that it drops component temperatures below the room dew point. In that case, the water vapor in the room's air might condense on your PC components.

As for your watercooling idea, yes you can get sub zero temps however you would have to substitue the coolant for something else since water freezes below 0C. You would also definitely have to condensation proof your PC in this case.
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post #6 of 27
Yeah, can you imaging leaving your radiator outside while the computer is off, the water freezing and making the pump break because its trying to push a solid through the tubing. Ick, I don't even want to think about it!

What do you think those non-conductive water substitutes freeze at?
    
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post #7 of 27
Thread Starter 
ok, but about ducting the air from outside to my hsf... obviously my room isnt that cold... but outside is... so if i would do it right now (-20c) will i have condensation probs? how would i fix them?
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post #8 of 27
You'd need to use an antifreeze/water mixture. As for the exact %, I am not an expert at waterchilling so I'm not sure.

First is the room your computer in humid? Here's an easy way to test, put something outside for about an hour and bring it into the room your computer will be in. How quickly does water condense on its surface? How much water condenses? Obviously your computer components will not run at such a low temperature but it gives you a decent idea at what you have to deal with.

As for condensation proofing an entire PC, that will be difficult. Potentially you would have to cover everythign in your PC (aside from the HDD) in dielectric grease! An easier thing to do is put a dehumidifier in the room to remove the water vapor in the air. It's impossible to remove 100% but you should be able to remove enough to not worry about condensation.
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post #9 of 27
you might just run the duct in from the back of your case and have the outputs into your room so the computer is usable. True, it will be cooler in your room, but you'll get lower temps, but you might get condensation on the outside of your case like ice in a soda glass...but the condensation will not go into your case as long as it's sealed up with a directional air flow (no extra holes feeding air to the ram or side case fans...just one in, and one out)
post #10 of 27
Thread Starter 
ok... im trying to think here... ok heres my game plan

first i will do the put something outside for a few hours than pull it inside to see for the condensation...

for the ducting i will duct the cold air from outside to my delta 220 cfm fan attached to the xp-120... right next to it i will have another 220 cfm delta throwing the air out of my case... hopefully the air wont have enough time to condense and when it does it will be out of my case!

one problem... since the air will be sub zero whats going to happen?
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