Post Rad Chiller Concept

[zoson]

2 pictures that really was not clear what it was about ( 1 showed a TEC/heatsink with 2 tubes going to it - water cooling perhaps !!! the other just showed the same unit in situ.) and 40 words which weren'nt particularly clear either...you know what you were talking about but did'nt clarify it to anyone else. A link to the thread you were referring to would of been nice...But on the face of it since your query had nothing to do with this thread you should of started a new one - and clarified yourself a bit better - we aren't flipping mind readers....



Yes...now you have given up a given us a clear indication of your thoughts...

well done FLAK...

To do what you thought but it still wouldnt be great... you would need to use a large TEC undervolted - this would give you a Dt at 50w which would get you a small measure of cooling but you would still have 100w maybe a bit more coming off the hotside - roughly one can always assume the heat coming off the hotside will be 2 to 2.25 times the cooling on the coldside. It is pretty tricky to cool any TEC of a size worth using with a passive heatsink but on that point a fan will AWAYS greatly improve things.

If you read the first few pages of the thread, this model here is EXACTLY what this thread was originally about.

Right, I am planning to have a fan on it. The heatsink is actually fairly large... It's a Swiftech MCX462... Over 450g of copper/aluminum pins. Their site rates it at .29c/W with a 20dBA fan. I had originally thought that I would take a 80W 16v Peltier and just plug it directly into my PSU's 12v rail, to get some better efficiency... But you guys seem to indicate I would be better off taking like a 226W 16v and running it at 7v(12v/5v rail molex thing)?

What I don't understand, is that people used this particular heatsink with 226W 16v pelts undervolted to 12v right on top of CPU's at sub zero temps... This is the EXACT heatsink I have, just it doesn't have the pelt or coldplate.
http://www.swiftnets.com/products/mcx462plusT.asp
Which they rate at:
# Heat dissipation capacity: 70 Watts continuous thermal load to ambient temperature with 80CFM fan.
# Maximum continuous thermal load: 100 Watts

Anyway, I wasn't looking for a huge amount of cooling. Just a little more at high loads.