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Custom 62mm TEC Water block - Page 65  

post #641 of 680
Man you are a dreamer. Take it one step at a time and don't get lost in your dreams.
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post #642 of 680
That's a lot of surface area
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post #643 of 680
Quote:
Originally Posted by flak-spammer View Post
Man you are a dreamer. Take it one step at a time and don't get lost in your dreams.
you are right! cannot let them get me too starstruck...
post #644 of 680
Generally all TECs are made from the same material which has certain limits.
Virtually all TECs have the same material limits i.e. All couples from the material have a voltage of 0.1227 per couple - who ever makes the TEC. The general working temps are also the same. References to maximum temp limits are hard to come by but Kryotherm publish as standard the working limits as -50ºC to 80ºC. It can be safely assumed this is fairly average across the board.
TECs do run hotter than 80ºC but the couples have started to breakdown, so I suppose it reasonable to assume they may go slightly below -50ºC.

Your fanciful -100ºC is not even attainable with single stage phase there is no way in the world you wil get near it with a TEC.

Like I said -50ºC may only be attainable at CPU idle if indeed you can get there
and like Ultrasonic said if you get -50ºC under load you really should be in line for a medal.

.
Edited by zipdogso - 11/30/09 at 3:03am
post #645 of 680
Quote:
Originally Posted by zipdogso View Post
Like I said -50ºC may only be attainable at CPU idle if indeed you can get there
and like Ultrasonic said if you get -50ºC under load you really should be in line for a medal.

.
Ah. Thank you my good sir. with that information, my Imagination now has laws of physics that it must abide by... And also i now have a Goal to work towards

anyone ever try making a 2 phase Phase change unit where one phase is TEC Chilled Coolant?
post #646 of 680
Quote:
Originally Posted by zipdogso View Post
Generally all TECs are made from the same material which has certain limits.
Virtually all TECs have the same material limits i.e. All couples from the material have a voltage of 0.1227 per couple - who ever makes the TEC. The general working temps are also the same. References to maximum temp limits are hard to come by but Kryotherm publish as standard the working limits as -50ºC to 80ºC. It can be safely assumed this is fairly average across the board.
TECs do run hotter than 80ºC but the couples have started to breakdown, so I suppose it reasonable to assume they may go slightly below -50ºC.

Your fanciful -100ºC is not even attainable with single stage phase there is no way in the world you wil get near it with a TEC.

Like I said -50ºC may only be attainable at CPU idle if indeed you can get there
and like Ultrasonic said if you get -50ºC under load you really should be in line for a medal.

.
is that the junctions limits or the ceramics substrate ?
    
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post #647 of 680
Thread Starter 
Well spereira88 it sounds like you need to get a job that pays some serious cash ! for all your cooling gear!
post #648 of 680
or any job that gets my situation stable enough to indulge in my hobbies and interests. ultra, im not familiar with where you live but, in the colder season, do the ambient temps get sub zero?
post #649 of 680
Quote:
Originally Posted by spereira88 View Post

anyone ever try making a 2 phase Phase change unit where one phase is TEC Chilled Coolant?
It is not worth the effort - Phase change is phase change - TEC is TEC.

A single stage Phase change will cool below what a TEC can there is no sensible reason for using a TEC to cool the first stage. And the phase change stages don't work like you think you don't cool the coolant then pass on to the next stage - It is the gases themselves that are cascaded.

Anyway...go for it and don't dream too hard...
if it fails don't come back here saying TECs are no good - they are great if used within their constraints. We need to stop this now we are diluting Ultra's thread.
If you have anymore specific questions please start a new thread...

Quote:
Originally Posted by Demonkev666 View Post
is that the junctions limits or the ceramics substrate ?
As far as I am aware the one and only reason for the ceramic wafers is to provide electrical insulation. Without them it would be hard to use these things.

Quote:
Originally Posted by spereira88 View Post
ultra, im not familiar with where you live but, in the colder season, do the ambient temps get sub zero?
Actually tonight after a chilly day it is 0ºC here in South London/Surrey. Winter must of started ! LOL
Edited by zipdogso - 11/30/09 at 4:33pm
post #650 of 680
Thread Starter 
Quote:
Originally Posted by spereira88 View Post
or any job that gets my situation stable enough to indulge in my hobbies and interests. ultra, im not familiar with where you live but, in the colder season, do the ambient temps get sub zero?
um sometimes it's a few degrees C below zero in the morning but never by the time i get home from work. (it doesn't snow here)
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