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Sealed 750D water chilled/TEC case. - Page 2

post #11 of 42
Thread Starter 
With the chiller cooling water to 4-5c I shouldn't need a high flow rate. Flow must be high enough to avoid freezing in the cooling block attached to the peltier. The system will be dialed in for full load, never to be used when idle. For a momebt lets say that this computer will never move, it will spend its life as a piece of furniture lol. If and when I decided to turn the pelltiers on will they cool the 4c incoming fluids below 0c?
post #12 of 42
Thread Starter 
Also lets assume this computer will never move and be a stationary piece of furniture next to my tv, always on the chiller. Will the peltiers do what I am seeking and when turned on drop temps further. Also I do not need high flow rate as the incoming will already be at 4-5c. Fast enough flow to avoid freezing inside the chiller block on the peltier, slow enough to drop the temps of the through flow. These would only be run at full load and setup for such. Thanks guys thumb.gif
post #13 of 42
As you want the peltier to work no it won't make any difference to your water temp if the water is 4*c and your peltier hot side is 40*c with a 30*c delta you would be actually heating the water going threw it.. Just stick to the water chiller
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post #14 of 42
Thread Starter 
But if I follow suit and liquid cool the hot side to cool it down, way down. Willing to get a larger chiller if needed for that task, could use the water after it finishes the loop to chill the hot side or a dedicated loop if need be. Really want to play with this thing.
post #15 of 42
The peltier puts out 2x the heat it can take you can't use the peltiers cold water to cool the hot side go look at other peoples water chillers because you have no idea how a peltier heat pump works
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post #16 of 42
Thread Starter 
On its own loop, something like this possibly. I guess it would all really depend how low I want to get the cold side of the peltier. I could position the rad in the case but only if the water coming off the hot side of the peltier is cooler than the ambient air, which it is not. I could add another rad in the case to cool it further below ambient. I could also just take the water from the rad that's last in the loop inside the case and just plum it to the hot side which seems like overkill, but could allow me to do what I want with one peltier and I would not require an outside rad at all. Just curious but what happens if you stack
2 peltiers on top one another?
post #17 of 42
Thread Starter 
If the chiller can handle watts created by the computer plus peltier watts it will be fine. I agree that if the chiller does not remove the required btu's then yes I would be in trouble. This is all to get that last little bit because I can. End goal sub 0.
post #18 of 42
no a peltier would drop 0.5*c max if the water from your chiller is 4-5*c you would need more then 1 peltier to do that also you need a lot of radiators on the hot sides of the peltiers or verrrrry big heat pipe cooler with 300watt cooling or more

im building a tripple 250watt peltier chiller cooling 200watt and im just about lower then dew point but i have to cool over 600watts of heat out put from the 3tec's plus my cpu why i need 2 360rads 2 240 rads with high airflow fans but could do with more rads but no room for them,

so i doubt you adding peltiers to your pc will help you'll waist power big heat out put for no reason and probably will heat up you chilled water more then cool it oh and did you know peltier are un efficient my chiller uses 400watts of 12v to cool 200 watt of heat plus all the stuff ive payed for to build it thumb.gif so yea is it worth waisting lota of money and making your chilled water warmer just to show off and look like an idiot when you tell them it waists yoru power makes your water warmer and dose nothing at all ?

wants sub zero? buy phase change unit peltiers wont help you there
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post #19 of 42
Thread Starter 
I am assuming a 65 degrees delta so cooled to 30c on just a ambient loop built and tuned for 30c full load might work. This would not add heat to the chiller and in theory it would be running near its most efficient point like your setup. With 65 degree delta the cold side should have the ability to go down to -20c, like yours would if kept close to 30c. In the water they will never reach that temperature. The only difference is that I will start at 5c. The chilled water makes the cold side run colder, just like warmer water makes a cold side run warmer. Your setup would be more efficient because your cooling ambient water, Your cold side has a larger temperature difference between it and the water. What I am proposing does not but there would be the difference. If tuned correctly the cold side is capable of -20c. If i feed it 5c there is still 25c potential difference. Could be totally off I just got home from nights. zzzz
post #20 of 42
Thread Starter 
http://www.penguinslab.com/peltier.htm
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