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First time Peltier User

post #1 of 5
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If I buy a 275W peltier can I cool it with a high end air cooler or will I require water? If it cant be cooled by air can an 80W one be cooled by air?

Finally with something like a 275W peltier will I see better results than water or about the same?
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post #2 of 5
No way a 275w peltier running at full power can be cooled by air. Don't forget you are also cooling a load. Therefore, a CPU + 275w TEC is 350-400w of heat. Another thing you must realize is TEC performance drops as it gets hotter. Again, with the 80w TEC.... You need to account for the heat load as well. Also, what are you planning to cool with a 80w TEC? CPUs and GPUs need at least a 200w unit.

TEC are a method of pumping heat. You need to then move that heat somewhere. Water is then needed to move that heat away from the source and cooled. It is TEC + watercooling. The best you can get with water is ambient temperature. Great TECs can get around -50C. However, you need a big dedicate PSU, special waterblocks, a large radiator, and all the other parts of a watercooling rig.
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post #3 of 5
http://www.overclock.net/peltiers-te...e-1-basic.html

should give a basic idea of what your dealing with when cooling with a tec.

keep in mind the cooler your hot side of the tec, the cooler your cold side will be.


that's why water is generally recomended as cooling since its more efficient that air at pulling away heat.
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post #4 of 5
Quote:
Originally Posted by Larethian View Post
If I buy a 275W peltier can I cool it with a high end air cooler or will I require water? If it cant be cooled by air can an 80W one be cooled by air?

Finally with something like a 275W peltier will I see better results than water or about the same?
I don't know anything about it, but one of the pelt guys here has an interesting thread on cooling one with air...Ultimate Air Cooling - Overclock.net - Overclocking.net
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post #5 of 5
there's no doubt it could work.

in fact, as heat increases (to a degree) tec's do become more "efficient" but the problem with air is that its easy to overcome to cooling potential of the hs with a powerfull tec.

and's that why you'll generally only see (at best) a 10-20 degrees below core temp with an air cooled tec.

with water, you can get to below zero with the right hardware.

the minute you start saturating the air hs with heat and the tec isn't being cooled anymore... the tec will start to heat itself and as it continues to pump more watts into the system the heat has no more to place to go but into the processor.

that's why air cooling is generally not recomended. but done right. there's no reason why one wouldn't be able to effectively cool a tec with one.
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