Peltier-Seebeck effect generator

[nlc]

Yes it can stick!

[nlc]

To read : http://www.bricotronique.com/dossiers/thermo/

From the tests in fact I do not have the impression that we can get much from it in the Thermal direction -> Electricity

I continue reading ...

[iota]

Absolutely, according to the photo, the guy simply puts the module on the hot plate and a glass on top.

Obviously it cannot work super terribly because the glass heats up because of the plate not very far and the weak contact between the different elements.
This is exactly what I tried to do (a freezer block and a boiling cup), the pb was not the great contact, the module was either hot or cold, but not hot on one side and cold the other.

So the delta must not be very large, hence the low power.

In the link you proposed, we can clearly see the possibilities and applications of this system.

[bham]

Twenty modules like this in series, a small chopper and it's 220V and around 4KW !!

Hi nlc.
You could do an electrical circuit diagram because "chopper" et Cie for me is Hebrew. Thank you.

Otherwise, have you been to see this topic: https://www.econologie.com/forums/developpem ... t2641.html

There's something for you on the electric bike.

[nlc]

Principle of the chopper:

code: Select all

220V continu

+ ---------------+-----------------------+
                 |                       |
- ------+        |                       |
        |         /                       /
        |        / K1                    / K2
        |        |                       |
        |        |                       |
        |        +------- A    B --------+
        |        |                       |
        |        |                       |
        |         /                       /
        |        / K3                    / K4
        |        |                       |
        |        |                       |
        +--------+-----------------------+

Imagine that at first, K1 and K4 are closed, while K2 and K3 are open: we end up with the + 220V on A and the 0V on B.

In a second step, K2 and K2 are closed, while K3 and K1 are open: we end up with the + 4V on B and the 220V on A.

If each of the cycles lasts 10ms, we find in A and B a square signal +/- 220V 50Hz. It doesn't look like a sinusoid because I simplified to death!

In a real chopper, we have K1 K2 K3 K4, but there is much more than 2 beats, which allows us to find a pseudo sinusoid at the output thanks to the average value of the voltage.

Otherwise thank you for the link I will see the video when it is on google!

[iota]

It is the same principle as an inverter or a converter (there are some at Casto).
With the peltiers we could supply 12v and go through a converter.

[nlc]

Yes quite.

But first we have to see what we can get out of it with a good editing

[Petrus]

http://www.dansworkshop.com/Grease%20Po ... Jeep.shtml

A remote controlled car powered by a peltier, it doesn't look terrible, you have to see performance level, but with a stirling engine, we do much better

[nlc]

Yes I think stirling is the most profitable way to convert solar into electricity. But even if the performance of the peltier is less good, it could be interesting anyway because it costs cheap, and especially there is little mechanics (no moving parts, generator, etc ...)

[iota]

Absolutely, this is the BIG advantage of the peltier.
It’s a component!
it doesn't require any maintenance, it doesn't make any noise, it's cheap compared to stirling engines.

In addition, I repeat, you need a good temperature delta !!!
the small jeep that we see on the link, obviously does not have a super well made heatsink system, and the heating is done with a candle.
It seems largely optimizable to me.