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Custom 62mm TEC Water block - Page 63  

post #621 of 680
I'd have to wonder how that thing can keep a 350w TEC cool. After my experiences it takes a lot of cooling power to keep just 90w TECs at a decent temperature.
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theonering
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post #622 of 680
for one thing, surface area. like with water blocks, it is vastly important in air heatsinks. those fins allow alot of air flow to take away heat. another point is that a 1" think chunk of copper actually is not as good at getting rid of heat as a .5" thick chunk of copper (note that i said thickness, not overall size). also, if memory serves my TEC is designed to run at a max of 15v, the highest my modded psu will go is about 14. In the picture it's running at 12. I also insulated all the way around the TEC very tightly.

regardless, it works and I'm not insanely concerned with the how.
post #623 of 680
Nah I'm just curious because I'm pumping about 180w into an aluminum heatsink that is almost twice the footprint and has at least 4 times the airflow and it's probably 40C ish. So not optimal for TEC cooling. Perhaps I just always have the knack to have hot stuff.
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theonering
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post #624 of 680
it's probably because of the aluminum. copper is much better

the guy i got found out about the heat sink from used a copper cold plate and had the cold side in a completely sealed case and got his case temps down to 9C with nothing running.
Edited by quijonsith - 11/23/09 at 4:33pm
post #625 of 680
Not in a heatsink it isn't...Copper has a higher conductivity but it doesn't have a tendency to release its heat as fast as aluminum it's why the TRUE copper is maybe like 1-3C better. Anyways this thread is starting to go off topic so I'll cease to comment for now, and good luck with your cooler.
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post #626 of 680
Firstly... its about 9 am here where i live... and i started reading this thread about... 10 hours ago... i have not stopped. you kept me up all night. and i cannot say that im displeased! you have done Marvelous work! you have an interest and you are taking that interest as far as your imagination will take you.
That makes you a GREAT person! And a GREAT innovator!

Okay so i live in canada. i also am really interested in TEC's its gonna be winter up here soon... and i was thinking.... if i had one of your TEC blocks with a POWERFULL TEC, and set my computer outside with my dual 360 rads in a Bucket full of Ice, And Water.... what may i expect to happen
Rock on my good sir.... Rock on!
post #627 of 680
You would need to insulate the entire motherboard if you put it outside most likely. So much condensation.
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post #628 of 680
Quote:
Originally Posted by oliverw92 View Post
You would need to insulate the entire motherboard if you put it outside most likely. So much condensation.
No not necessarily...
So long as you have the standard case fans etc blowing in and out...
you will need to insulate the CPU, as a precaution, if nothing else....
he said he will put his PC outside....the ambient will be low - even with an average humidity (which he wont have if it's really cold - cold air cannot hold much moisture.) the frost point (dew point at minus temps.)
will be very low.
he will have to watch it when he brings it back in....but it will be turned off then - just need a dam good drying.

PS You will need to prevent the coolant in the rads from freezing - that would also apply to the water in the bucket.

And depending on what your expecting you might not need a powerful TEC either. The sheer volume of copper in Ultra's block will make it pretty efficient at low ambients.
Edited by zipdogso - 11/28/09 at 9:22am
post #629 of 680
Good point about the cold air.
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post #630 of 680
my question is whether the Cold ambient would allow the TEC Block to perform better.
from what i have picked up... the colder you can keep the HOT Side, the Colder the COLD Side will be?
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