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Overclock.net - Overclocking.net > Cooling > Peltiers / TEC | |
Idea for a TEC setup
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LinkBack | Thread Tools |
04-20-09
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#1 (permalink) | |||||||||||||
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4.0 GHz
 
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Idea for a TEC setup
So I have been thinking about doing a TEC setup for quite some time now. I have this idea to use my existing watercooling loop, but to make a new chiller res for it. Thing is that I don't want to get the temps below sub ambient because I do not want to have condensation happen at all. Now I understand that this is really inefficient as it would be ambient on idle, but not ambient at load, and this is where I want to throw my idea into motion.
Suppose I were to design an algorithm that monitors the temp and once it passes a certain threshold temperature, basically about maybe 2 degrees C over ambient, I increase the power to the TEC, but also don't just increase it linearly rather have a feedback to check for a low value at ambient. This way it keeps the temp of the water within ambient temperatures regardless of cpu load. I also understand that this won't keep the CPU temp at a constant value, but rather in between a threshold which would still be pretty consistent. This could even be implemented (possibly better) as an on die TEC setup. Tell me what you guys think.
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If you ain't rubbin', you ain't dubbin'  Low Life or No Life.  #3160 LC9Z Buy my motherboards! Please?
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04-21-09
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#2 (permalink) | |||||||||||||
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Intel Overclocker
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Interesting idea but I'd say the problem is your going to end up with temperatures that fluctuate a lot. Even if you did a feedback loop temp sensor on the cold side of the TEC and coded it to increase or decrease the PWM (easiest way to change the perceived voltage) duty cycle based on being +-5C from ambient. It would still mean that your temps have a good 15C or so that they can swing. Also if the TEC isn't powerful enough it'll peter out when you get to the higher loads. So I don't know if you have a detailed plan of what you are going to do but it should work, it's just going to require a lot of effort.
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04-21-09
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#3 (permalink) | |||||||||||||
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4.0 GHz
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Well I was thinking about doing it for a design project for class but we are going with our original design for a DC motor controller.
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If you ain't rubbin', you ain't dubbin' Low Life or No Life. #3160 LC9Z Buy my motherboards! Please?
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