CoolIT Freezone review

[danrok]

From the front page:
http://www.aoaforums.com/frontpage/content/view/2814/1/

Comments?

[Samuknow]

To get this straight. Looks like the cold side removes the heat from the water and the heat from the hot side of the TEC is removed by the monster heat sink to the outside of the case. According to the review it seems to work. I assume that the TECs are low enough power to run from your computer power supply. Does not seem the the TECs would be very high power.

I have as well as others, kicked this idea around before. It just does not seem to be efficient.

[Gizmo]

TECs are not very efficient, no matter how they are implemented. Typically, you dissipate as much power moving the load as you have in the load itself; if you have a 25w load, the TEC will also require 25w to move it, resulting in a net 50w of heat that have to be removed.

[Samuknow]

That is where I am confused. Most CPUs put out over 100 watts when over clocked. 100 watt TEC added to your PSU plus the pump and other hardware.

[noob]

Not much on tech specs at their website.

While tec's are fun to play with, and their USB chillers look better than similar I have made in the past, I wouldn't use them for serious cooling.

Mainly you only really get a few degrees lower than water, for a huge extra power jump.

[Samuknow]

I have seen a few reviews that boast some nice cooling. Apparently it is about 250 watts worth of TEC cooling. That means 250 + the wattage that your cooling released in heat.

[Áedán]

Yeah, peltiers are pretty inefficent in the heat pumping. There's a measure called "Coefficient of Performance" (COP for short). Basically it is used to measure how much heat is pumped for a unit of energy put in. A peltier has a COP of less than 1. That means for 1W of energy you put in, it pumps less than 1W of heat. Phase change systems can manage a COP over 3, meaning that they'll pump 3W of heat for every 1W of power put in.