Are there Peltier cooling devices with separate hot and cold blocks?

[hasu]

All CPU Peltier cooling devices I saw were fabricated as sandwiches with one side cold and the other side hot. Are there peltier cooling device with hot node/side away from cold side, so that we can keep the hot node outside of the case?

 

[BonzaiDuck]

All CPU Peltier cooling devices I saw were fabricated as sandwiches with one side cold and the other side hot. Are there peltier cooling device with hot node/side away from cold side, so that we can keep the hot node outside of the case?

You might want to look at the TEC coolers sold for use in mobile automobile food-coolers or warmers. These latter items are much like an IGLOO ice-chest. I had seen the TEC devices offered up on the web in recent years, or maybe 5 years ago.

 

[PhIlLy ChEeSe]

Google,
You'll see all sorts of configurations with this device. Better off water cooling for the money spent, then if you need open the window in winter..........

 

[hasu]

You might want to look at the TEC coolers sold for use in mobile automobile food-coolers or warmers. These latter items are much like an IGLOO ice-chest. I had seen the TEC devices offered up on the web in recent years, or maybe 5 years ago.

I could not find one with two blocks - one for hot and the other for cold. Do you have a link? Ones that I saw were having two plate sandwiches with one side for cold and the other hot. Basically heat will still be trapped within the case.

 

[hasu]

Google,
You'll see all sorts of configurations with this device. Better off water cooling for the money spent, then if you need open the window in winter..........

This is for an experiment. _May not_ be used with any of my machines.

 

[OVerLoRDI]

Peltiers are pretty awesome idea, but there are a lot of draw backs.

- Power Draw. Very inefficient
- Regulation. To make it really worth while (below ambient) you need to start worrying about condensation. That requires additional hardware or electrical know how to build a regulation circuit that will adjust the power to the Peltier to keep it above the dew point, given the current ambient temperatures
- Cooling. Peltiers work by using energy to create a delta in temperature on one side to the other. The cold side will be really cold. The hot side will be really hot and require additional cooling, which is usually water cooling and a lot of it.

 

[aigomorla]

I could not find one with two blocks - one for hot and the other for cold. Do you have a link? Ones that I saw were having two plate sandwiches with one side for cold and the other hot. Basically heat will still be trapped within the case.

i think your looking for a tec chiller... to transport the hot side over to a radiator outside away from the cold side..

I had one made by custom by martin a while back ago.

the hotside and cold side could be moved to its respected location via coolant.

 

[hasu]

i think your looking for a tec chiller... to transport the hot side over to a radiator outside away from the cold side..

I had one made by custom by martin a while back ago.

the hotside and cold side could be moved to its respected location via coolant.

Hmm.. what I have is TEC1-12706, is it possible to take it apart and re-assemble it somehow to make hot plate away from the cold?

 

[DrMrLordX]

hasu, your inquiries seem related to some confusion regarding the operation of a TEC.

TECs (aka Peltier coolers) are, at their very core, composed of a bunch of circuit elements known as thermocouples wired together. Each thermocouple is composed of two parts, and each part of made of a distinct material. That is why you will see thermocouples referred to as being, say, p-type/n-type bismuth telluride or what have you. The reference describes (in brief) the materials used to create the thermocouple. Anyway, when you run voltage/current through the circuit, the thermocouples exhibit what is known as Peltier effect: the transportation of heat through each thermocouple from one side to the other. It is Peltier effect that creates a "hot side" and "cold side".

If you were to try to break a TEC into two parts, you would be effectively breaking apart the thermocouples themselves. Physical contact is required for the two parts of the thermocouple to function. Without that, you get no Peltier effect. So, no, you can not simply take a TEC apart and move the "hot side" and "cold side" into different locations. Maybe someday we'll be able to exploit quantum teleportation effects to facilitate the flow of heat across space and time, but for now, we can not do that.

Examples such as aigomorla's are about as good as you're going to get. Traditionally, TECs have required cooling to keep the hot side temperatures low enough that the cold side can produce desirable results. Water loops are often used for that purpose.