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Old 04-05-2009, 10:43 PM   #1 (permalink)
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Default requirements for running a pelt

how many amps are needed on the 12V rail to run a pelt efficiently?
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Old 04-07-2009, 10:38 PM   #2 (permalink)
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Default Re: requirements for running a pelt

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Originally Posted by Burninator View Post
how many amps are needed on the 12V rail to run a pelt efficiently?
Wattage rating on the Peltier divided by the voltage it requires to run = amps at that voltage.

For example, a 300 watt power supply that runs on 12v Give you an amperage requirement of

300w / 12v = 25amps

The gist of it is, any peltier worth using, draws more power than can be readily provided by a power supply that is running a computer.

You really need a dedicated power supply.
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Old 04-07-2009, 11:20 PM   #3 (permalink)
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Default Re: requirements for running a pelt

ok, thanks for clearing that up. Is running a peltier really practical? how effective is it?
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Old 04-08-2009, 12:04 AM   #4 (permalink)
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Default Re: requirements for running a pelt

Practical? No.

Only effective if done right, and to do it right isn't cheap.
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Old 04-08-2009, 12:25 AM   #5 (permalink)
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Default Re: requirements for running a pelt

hmm. how expensive? lol
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Old 04-08-2009, 12:45 AM   #6 (permalink)
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Default Re: requirements for running a pelt

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Originally Posted by Burninator View Post
hmm. how expensive? lol
Call it a custom made peltier water block hooked up to a dedicated water cooling loop where the hot side is cooled by it's own loop and the cold side cools a second loop to sub ambient.

Figure $100 in peltiers
$100 for power supply
$150 for a custom made block
$200 for a radiator and pump

so figure around $500 bucks for everything if you take into account the loop you already have.
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Old 04-08-2009, 12:51 AM   #7 (permalink)
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Default Re: requirements for running a pelt

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Originally Posted by aspire.comptech View Post
Call it a custom made peltier water block hooked up to a dedicated water cooling loop where the hot side is cooled by it's own loop and the cold side cools a second loop to sub ambient.



so figure around $500 bucks for everything if you take into account the loop you already have.
whoa. much more than i expected. but also a little different. i guess i was thinking just slap a pelt under the water block i already have? lol
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Old 04-08-2009, 01:01 AM   #8 (permalink)
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Default Re: requirements for running a pelt

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Originally Posted by Burninator View Post
whoa. much more than i expected. but also a little different. i guess i was thinking just slap a pelt under the water block i already have? lol
Not a very effective solution.
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Old 04-08-2009, 01:06 AM   #9 (permalink)
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Default Re: requirements for running a pelt

yeah, thats what i was thinking.

is there any simple/cheap way to chill the water in a loop? i noticed that in the morning when the water is nice and cold i get like ~10 lower load temps, which would be sweet to have all the time.
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Old 04-08-2009, 01:12 AM   #10 (permalink)
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Default Re: requirements for running a pelt

You could always look on ebay for a used water chiller...
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