Hot face cooling for Peltier module

[sicetaitsimple]

What you want to do (40 ° C) is impossible.

Even with a graphene radiator?

[GuyGadeboisTheBack]

What you want to do (40 ° C) is impossible.

Even with a graphene radiator?

[Forhorse]

You can also cool the coolant with another shovel (at least 2 in fact), it makes a pyramid but deported.
You can also circulate chilled water (a correctly dosed antifreeze allows you to have a cooling liquid that remains liquid even at -20 ° C) by having the production of cold (by pelletier modules ...) away from the place you're looking to cool down.
In short, the idea being to evacuate calories, whether the liquid is upstream, downstream, or in the middle of the circuit providing this function does not change much.

[eclectron]

You can also cool the coolant with another shovel (at least 2 in fact), it makes a pyramid but deported.
You can also circulate chilled water (a correctly dosed antifreeze allows you to have a cooling liquid that remains liquid even at -20 ° C) by having the production of cold (by pelletier modules ...) away from the place you're looking to cool down.
In short, the idea being to evacuate calories, whether the liquid is upstream, downstream, or in the middle of the circuit providing this function does not change much.

Yes and it is necessarily bulky somewhere. not to say gas plant

[THAD]

Thank you all for your advice,

So Forhorse, if I summarize I need a peltier for the production of cold and another peltier to cool the ice water and the antifreeze which will cool the hot face of the first peltier?

But how do you check that the heat produced by the two peltiers does not take over the production of cold?

If someone is very familiar with energy efficiency calculations on peltier effects (real specialist) please contact me Thaddee.caron@gmail.com, advice and calculations will of course be remunerated!

[eclectron]

Thank you all for your advice,

So Forhorse, if I summarize I need a peltier for the production of cold and another peltier to cool the ice water and the antifreeze which will cool the hot face of the first peltier?

But how do you check that the heat produced by the two peltiers does not take over the production of cold?

If someone is very familiar with energy efficiency calculations on peltier effects (real specialist) please contact me Thaddee.caron@gmail.com, advice and calculations will of course be remunerated!

From memory, you can consider that to cool the hot side of a single Peltier, you need 4 behind, of identical dimensions which themselves will have to evacuate their much more substantial heat somewhere.

[THAD]

So it's impossible in fact? are peltier modules for cold production therefore useless because the efficiency is ridiculous? There are no peltier modules optimized only for cold?

[eclectron]

So it's impossible in fact? are peltier modules for cold production therefore useless because the efficiency is ridiculous? There are no peltier modules optimized only for cold?

you wanted a delta of T ° of 40 ° C with a single stage, it is not possible, even if the theoretical curves would suggest that ... in practice it is 20/25 ° C per Peltier stage.

With 2 floors, it is possible but it becomes significant.
You can have your first Peltier + a water circulation which is cooled by 4 Peltiers and these same 4 Peltiers which are cooled by a finned heatsink + fan.


As we don't know what you want to cool down, it's hard to realize what is possible or not.
In absolute terms it is possible but maybe not for your application.

[THAD]

Thank you, but the necessary components (4 peltiers, fans, heatsinks) take up too much space, I would like to tell you about it + but my device will be the subject of a patent so it is impossible to talk about it +.

If you are really familiar with peltier effect modules or if you know qualified people, you can send me an email to join the adventure.

And I also wonder about water-cooling, according to you for a power device similar to a small fridge. A water-cooling device instead of peltier modules would it not be more advantageous in terms of place-power ratio as I recall I am very very limited in space,

To give you an idea my object is similar in size to a macbook and should provide similar cooling power to a small fridge

[eclectron]

Thank you, but the necessary components (4 peltiers, fans, heatsinks) take up too much space, I would like to tell you about it + but my device will be the subject of a patent so it is impossible to talk about it +.

If you are really familiar with peltier effect modules or if you know qualified people, you can send me an email to join the adventure.

And I also wonder about water-cooling, according to you for a power device similar to a small fridge. A water-cooling device instead of peltier modules would it not be more advantageous in terms of place-power ratio as I recall I am very very limited in space,

To give you an idea my object is similar in size to a macbook and should provide similar cooling power to a small fridge

I am not an expert in the field, just a "handyman". As in everything else
I am not interested in participating in a patent, nor in money, and unfortunately I do not know any specialist.
When I read "power of a small fridge", I think of this type of fridge:
https://www.boulanger.com/ref/8008593?x ... ds&?kard=1
With peltiers anything is possible but will heat up hard and consume hard.
Better to take the group (cooling) from a small fridge.
This is what I had done elsewhere but space was not a problem for me.
and all this to cool a volume of 5cm x 5cm x 5cm thermally insulated from the outside. (with only 1 Peltier + fridge)

Water cooling is just a water 'cooling' at room temperature, it seems to me?