Heat pump with peltier module

[aidiv]

Hello, my question is simple but the answer may be a little less.
I would like to know the COP of a peltier module used for heating and not for cooling.
I tried to find on the net but everyone apparently only uses the cooling function.
I wondered if we transposed it on the principle of a heat pump, ie like a geothermal for example that it would be are COP.

please

[PITMIX]

Hello aidiv
I have a small Peltier effect module. I also use it to cool or rather to dissipate the heat of a processor. It creates a DT ° of 67 ° at 15,4VDC at 6A. For my part it measures 40x40mm. The electrical consumption seems important to me for such a small component. At its maximum power it is 55W.
An electrical resistance would make P = UxI 15,4x6 = 92,4W.
In the case of my component, the values ​​are given for a DT ° between the two walls. Whether it works hot or cold there is no difference. So I think it is not interesting because it absorbs 92,4W and provides 55W COP of 0,6 resistance to a COP of 1 a PAC to a COP of 2,5 to 3. In my opinion if components of this size were as greedy as heat pumps there will be more fans in the computers, ect ...

[Castor]

Bonjour.

I would be curious to know how it works, can you inform me?

[Christophe]

Bonjour.

I would be curious to know how it works, can you inform me?

-> http://fr.wikipedia.org/wiki/Thermo%C3% ... icit%C3%A9

[Bibiphoque]

Hello,
The peletiers indeed have a low yield and are not suitable for large volumes, they are interesting for "making cold on a small surface" without having to install a whole system of gas exchanger, which would certainly have a much better yield.
It is more a question of mechanical ease than attention to real efficiency.
@+

[Castor]

Thank you for this very interesting information.