What would happen?

[Ascuur]

I just was wondering what would happen if i passed hot air through a radiator, would the air on the other side be cold, assuming that their was no liquid in them at all?

[LionWaffles]

Probably not, and I wouldn't test it. 

[Ascuur]

1 minute ago, LionWaffles said:

Probably not, and I wouldn't test it. 

I was just thinking that if it did, you could use it to make air that comes out of your case not hot which would keep the ambient temperature down in your room.

[vanished]

A radiator just exchanges heat.  One side will go in hot and come out cooler (but warmer than the cool coming in the other side) and the other side will go in cold and come out warm (but cooler than the warm coming in the other side).

In the case of a PC liquid cooling rad, the fluid coming from the CPU/GPU is the warm inlet, and the air passing through the rad is the cool inlet.  If you make the air hotter than the PC parts, it will heat up (and probably kill) the PC parts.

[LionWaffles]

Just now, Ascuur said:

I was just thinking that if it did, you could use it to make air that comes out of your case not hot which would keep the ambient temperature down in your room.

If it did then that would be a breakthrough  having your room air conditioned while using a machine that radiates heat...

Try it with a cheap radiator if you are going to. (don't want it breaking lol)

[Ascuur]

Just now, LionWaffles said:

If it did then that would be a breakthrough  having your room air conditioned while using a machine that radiates heat...

Try it with a cheap radiator if you are going to. (don't want it breaking lol)

Me and my buddies were trying to think of a new way to "cool" our pc's lol. What if you had pipes of cold water running through the radiator? So hot air blows on cold water which would cool it. Then I think that cold water would get hot eventually.

[LionWaffles]

Just now, Ascuur said:

Me and my buddies were trying to think of a new way to "cool" our pc's lol. What if you had pipes of cold water running through the radiator? So hot air blows on cold water which would cool it. Then I think that cold water would get hot eventually.

Radiator too small

[vanished]

Remember the basic rules of physics and thermodynamics: heat will move from the warmer thing to the cooler thing any time they touch.  The only exception is when you put in considerable effort and expend energy to force the opposite to happen (like an AC unit for example).

[LogicalDrm]

18 hours ago, Ascuur said:

I was just thinking that if it did, you could use it to make air that comes out of your case not hot which would keep the ambient temperature down in your room.

Physics... Not something you can just change by will. Actually Whole Room Watercooling is only option if you are looking for moving hot air from room and PC to somewhere else.

17 hours ago, Ascuur said:

Me and my buddies were trying to think of a new way to "cool" our pc's lol. What if you had pipes of cold water running through the radiator? So hot air blows on cold water which would cool it. Then I think that cold water would get hot eventually.

Basicly way that radiators already work is that hot water from CPU/GPU is transferred to rad which then dissipates the heat. See above for valid solution.