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Extreme TEC chiller experiment with Antec - Page 7

post #61 of 89
Quote:
Originally Posted by ZytheEKS View Post

TECs have a DT/Qmax curve. Divide the amount of heat you need to cool by the amount of peltier modules you have, then find where it is on the graph and you'll the peltiers performance. Peltiers cool very differently than rads. The cooling capacity does stack, but not the delta temperature you will achieve.

Thanks! Learn something new everyday here thumb.gif
post #62 of 89
Thread Starter 
Quote:
Originally Posted by ZytheEKS View Post

TECs have a DT/Qmax curve. Divide the amount of heat you need to cool by the amount of peltier modules you have, then find where it is on the graph and you'll the peltiers performance. Peltiers cool very differently than rads. The cooling capacity does stack, but not the delta temperature you will achieve.

So I had the same line of thoughts when looking at the TEC's from the post above. If we say that the GTX 980 GPU will dumb 300W of heat (OC of course), then divided with ten gives 30W.
When looking at the curves for the two TEC types at 30W of Qc then the smaller one gives around 45 degrees Delta T and the bigger gives around 50 degrees.

So I'm thinking that the difference between the two types of TECs in this low watt segment is very small to perhaps non (since the bigger TECs will also dumb more heat and rise the temperature on the hot side a bit. Though I got enough cooling I believe).
And the price difference I almost 3 times more (due to tax here in DK) mad.gif

I'm hoping that someone can confirm my above hypothesis? thumb.gif
post #63 of 89
Quote:
Originally Posted by Fruergaard View Post

So I had the same line of thoughts when looking at the TEC's from the post above. If we say that the GTX 980 GPU will dumb 300W of heat (OC of course), then divided with ten gives 30W.
When looking at the curves for the two TEC types at 30W of Qc then the smaller one gives around 45 degrees Delta T and the bigger gives around 50 degrees.

So I'm thinking that the difference between the two types of TECs in this low watt segment is very small to perhaps non (since the bigger TECs will also dumb more heat and rise the temperature on the hot side a bit. Though I got enough cooling I believe).
And the price difference I almost 3 times more (due to tax here in DK) mad.gif

I'm hoping that someone can confirm my above hypothesis? thumb.gif

The bigger one says it's about 55c dT @ 30watts, while drawing around 18 amps, while the other one has 45c dT while drawing 11.5amps. These numbers I'm getting from the 12v lines. With the smaller units you'll also have more even cooling with the blocks you ordered. That seems like the all around best option here, given the cards you've been dealt. Of course these numbers are purely theoretical, so keep that in mind when you test the end result.

-Z
Edited by ZytheEKS - 10/16/14 at 3:02am
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post #64 of 89
Thread Starter 
Quote:
Originally Posted by ZytheEKS View Post

The bigger one says it's about 55c dT @ 30watts, while drawing around 18 amps, while the other one has 45c dT while drawing 11.5amps. These numbers I'm getting from the 12v lines. With the smaller units you'll also have more even cooling with the blocks you ordered. That seems like the all around best option here, given the cards you've been dealt. Of course these numbers are purely theoretical, so keep that in mind when you test the end result.

Thanks, I do believe that too, and will order these so hopefully they arrive when I'm done with my exams.

And I will keep in mind that I may not get 45 degrees in difference, but this is an experiment to find out thumb.gif
post #65 of 89
Quote:
Originally Posted by Fruergaard View Post

Thanks, I do believe that too, and will order these so hopefully they arrive when I'm done with my exams.

And I will keep in mind that I may not get 45 degrees in difference, but this is an experiment to find out thumb.gif

Looking forward to the results. thumb.gif These DIY chillers are always a nice change of pace on the build logs.

-Z
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post #66 of 89
what are differences between chiller, tec, peltier and phase?
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post #67 of 89
Quote:
Originally Posted by cdoublejj View Post

what are differences between chiller, tec, peltier and phase?


TEC == peltiers Peltiers can either be direct die, that is set between a waterblock and a CPU, or between two waterblocks and create a chilled coolant loop. Both have their own pros and cons.

Phase change chillers are essentially air conditioning units, except instead of cooling the air they cool the liquid in their loop. Some people build phase change that goes directly over the CPU. Again, both have their own pros and cons.

TECs are silent, while phase change requires compressors so they're typically a bit on the noisy side. Phase change, on the flop side, is immensely more efficient than pelteir modules.

-Z
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post #68 of 89
Quote:
Originally Posted by ZytheEKS View Post

TEC == peltiers Peltiers can either be direct die, that is set between a waterblock and a CPU, or between two waterblocks and create a chilled coolant loop. Both have their own pros and cons.

Phase change chillers are essentially air conditioning units, except instead of cooling the air they cool the liquid in their loop. Some people build phase change that goes directly over the CPU. Again, both have their own pros and cons.

TECs are silent, while phase change requires compressors so they're typically a bit on the noisy side. Phase change, on the flop side, is immensely more efficient than pelteir modules.

-Z

phase all requires a warm up time before the PC is booted no?
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post #69 of 89
Quote:
Originally Posted by cdoublejj View Post

phase all requires a warm up time before the PC is booted no?

I would imagine it would vary depending on the compressor and refrigerant used, but I'm not an HVAC specialist and have no formal experience with phase change so I can't say for sure.

-Z
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post #70 of 89
I apologize if this is daft or just grossly wrong but would something like this work, even for just a 5C overall difference in a big loop?


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