/sci/ - Science & Math

[Anonymous No.15731194]

Is it possible to increase the separation between the hot and cold sides of a peltier device? All devices I see are rather thin.

[Anonymous No.15731196]

aluminium to conduct the heat?

[Anonymous No.15731198]

>>15731194
You can use more layers of them IMHO.

[Anonymous No.15731201]

>>15731196
the point would be to have something with low thermal conductivity to lessen the influence of one side on the other. silica, for example

[Anonymous No.15731209]

>>15731201
Doen't a peltier rely on the seebeck effect?

[Anonymous No.15731323]

>>15731201
NTA but potentially you could use aluminium based heatsinking to conduct heat away from the insulator/cold side thus reduce the thermal flux passing through the insulator to the cold side. This assumes:
1) the hot side has a known heat power output (i.e. a constant current source in an electrical circuit)
2) space constraints allow heatsinks to be installed

[Anonymous No.15731374]

>>15731194
Fun fact: If you combine the red side and the blue side it makes the magenta side
Green is a false temperate color, magenta is the real deal

[Anonymous No.15731380]

>>15731194
Heat pipe to a radiator/heatsink from the cold end?
This increases the distance in some sense.

The problem really is that the materials used for the peltier/seebeck effect are metals which will be the main source of heat conduction from hot to cold.
Also, for the effect to be strongest, you want a high thermal gradient across the junction (where the two different metals meet). A longer distance between hot and cold will just give a shallower slope (temp/distance) which will give a lower thermal gradient at the junction.

You don't actually want them far apart.

[Barkun No.15731381]

>>15731380
You'll get out of that mecha in a moment