» Topics » Advice »Peltier marching generator

Peltier marching generator


Hello! Now we will assemble a field generator based on Peltier cells, which will replace many spare batteries.
The use of home-made heat and power generators has been used for a long time. In 1943, a semiconductor thermoelectric generator in the form of a marching pot was built at the Leningrad Institute of Physics and Technology, its efficiency reached 2%, which made it possible to connect a field radio station to it.

With the advent of Peltier elements, it became possible to make the generator yourself.

For this we need:

1. Materials
radiator from computer
- two aluminum profiles
thermal paste
Peltier elements (2 pcs.) TEC1-12706
-increasing electric current converter (input. 2V)
wire
furniture bolts

2. Tools
metal knife
soldering iron
screwdriver
-drill
-hammer
-pliers
-screwdriver

1 step
Let's proceed to the assembly. From the beginning we bend the extreme plates of the cooling radiator and make 4 holes for fastening.


2 step
We cut two aluminum profiles for the heating radiator. The length and width of the profile is equal to the length and width of the radiator, in my case 100 * 100 mm.
(You can bend two aluminum corners 25 * 25 mm)

3 step
Between the radiators we place Peltier elements, having previously lubricated the places of contact with thermal paste for maximum contact. We tighten the entire structure in the corners with furniture bolts.

4 step
We connect the wires of the Peltier elements sequentially to each other. In our case, the Peltier element will generate a voltage of about 2 volts, this is not enough to charge the phone’s battery. Therefore, we will use a boost converter, which will increase and stabilize the output voltage to 5 V. We connect it in accordance with the markings on the boost converter. (You can use any boost converter, not necessarily like mine, the main thing is that it fits the characteristics)
Solder the plug that you need to the boost converter. You can also fill the boost converter with hot melt adhesive for tightness.

And the whole camp generator is ready, with which you can charge your phone or other gadget just by hanging it over a fire.

Suitable for topic

Related topics

Add a comment

    • smilesmilesxaxaokdontknowyahoonea
      bossscratchfoolyesyes-yesaggressivesecret
      sorrydancedance2dance3pardonhelpdrinks
      stopfriendsgoodgoodgoodwhistleswoontongue
      smokeclappingcraydeclarederisivedon-t_mentiondownload
      heatirefullaugh1mdameetingmoskingnegative
      not_ipopcornpunishreadscarescaressearch
      tauntthank_youthisto_clueumnikacuteagree
      badbeeeblack_eyeblum3blushboastboredom
      censoredpleasantrysecret2threatenvictoryyusun_bespectacled
      shokrespektlolprevedwelcomekrutoyya_za
      ya_dobryihelperne_huliganne_othodifludbanclose
10 comments
Prostopen
Minus!!!
PS: but does it mean that these Peltier elements (TEC marking) are not designed to operate at temperatures above 120 gr?
PPS: if you need to make such a generator, you will have to make two radiators and immerse the hot side in boiling water ... Or buy high-temperature Seebeck elements (TEP marking, you can actually find up to 700 C on sale) ...
Guest Alex
By thoughtful approach, I meant
cooling of the “cold” side with a radiator with a fan or water (peltier attached to the bottom of the pot / pan)
Prevention of overheating of the "hot" side. Those. hanging over an open fire is fraught. High-temperature elements are not very cheap.
As for the release - enough to charge devices. Especially if you do not use penniless peltiers. There are elements with quite a bad yield.

But here is the "crack" for now to the masters failed to win for sane money.
Guest Alex
With a thoughtful approach - quite a good idea.
If you have a bonfire, it is much better than a solar battery (if you live in the middle lane)
There is only one significant drawback.
The cost of a watt of electricity.
And the point is not even the cost of Peltier elements, especially high-temperature ones. And the fact that these Peltier quickly crumble. While experimenting (few usage cycles), everything is fine. But you just have to put it into operation - you will get bogged down at replacing elements.
Guest Valery
Bullshit is not working. To generate electricity, you need a temperature difference, for example, a pot of water cools to the temperature of the water, and the fire heats to the temperature of the fire, this will work.
And hanging over the fire, we will receive energy until the whole element heats up, 10 seconds, no more.
Guest Master


Moron - it must not be suspended above the fire !!!
And I'm not going to explain anything to you, anyway, you can’t understand the fool !!!
Guest Alex
This opus is simply an advertisement for Peltier elements. And unsuccessful.
Guest Igor
Crap. The output power is not enough even for charging, say dialers. Plus, as they said without cooling, the output power quickly approached 0. In order to receive electricity, you need a Seebeck element and not a Peltier. The meaning is the same, but the semiconductors there are selected specifically for energy and not the temperature difference.
Guest Bob
Maximum allowable temperature 138 ° C
without cooling, all jaluba will heat up and stop working
In our case, the Peltier element will generate a voltage of about 2 volts
I checked it, heated it with a simple gas lighter (from which I light it) for about 10 seconds, 2V produces one element, you have 3 of them! Where are the results of practical tests? Or did it all end with the first and last photo? Then next to the connector put a piece of paper with the inscription: "Voltage / current!" scratch

We advise you to read:

Hand it for the smartphone ...