Thermoelectric generator for uncertain times
Hello
I would like to present the effect of my experiments with the Peltier cell.
Such a cell is used, for example, in car coolers, after connecting the electricity, the phenomenon of heating of one side of the cell occurs while cooling the other. I began to wonder if it is possible to reverse the process, and thus provide such a cell with thermal energy, to obtain reasonable amounts of electricity. I bought a cell marked as 12V / 60W and started testing.
Compared to my previous experiences with the thermocouple, the results were very encouraging. At the same time, I came to the conclusion that such an element can, under appropriate conditions, obtain up to about 10% (later it turned out to be about 5%) of electric power in relation to the power consumed in normal use, declared by this manufacturer. With a temperature difference of about 100 ° C obtained with an ordinary candle, I obtained a potential difference of 3 V without any problems, and after using the step up HW 105 system starting from 0.9V, you can charge the phone, light the room and what's up will come.
Of course, this is not an invention, because such applications of Peltier have certainly already existed, but not much about it on the web.
I think that with the right number of cells, it is possible to generate electric power at the level of several dozen or several hundred W when using heat, e.g. a radiator.
In the video, start the generator from start to charging the phone.
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Adaś Niezgódka wrote 268 posts with
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Live in city Krosno.
Been with us since 2009 year.
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Add a commentYou did not discover America, because thermoelectric generators were already built on the basis of thermocouple sets during World War II, with a power of several dozen watts, heated by a gasoline lamp.... [Read more]
Of course, the supposedly radioisotope generator on a thermocouple transducer still works in Voyager probes sent into space in the 1970s, but people can enjoy the Stirling engine powered by a candle that... [Read more]
It seems to me that replacing the air heat sink of the cool part with a water cooler would effectively lower the operating temperature of the device, and thus increase the efficiency. I would suggest using... [Read more]
Better a steam engine + generator. [Read more]
For higher powers, yes, but the device will also be larger, and will have wearing parts. The one above is small, pocket-sized, and won't break by itself. [Read more]
I am a bit interested in the subject and I would like to build a more sensible generator of this type with a few Peltier cells. Anyone know if those from China described as TEG are actually more efficient... [Read more]
And not better such links? https://www.elektroda.pl/rtvforum/topic3646115.html [Read more]
Did a colleague take measurements? The idea is to load the system (resistor, light bulb) and measure voltage and current at the same time and calculate the power. Measurements should be taken at different... [Read more]
For the circuit shown in the picture, the efficiency will decrease with time due to the heating of the cooling heatsink. This is made to be easy to reproduce and draw conclusions. I think that it is ok... [Read more]
But why discourage America with words you have not discovered? A very interesting reminder of the issue and presenting it in a timely manner, using a cheap step up converter. Charging the phone during... [Read more]
But why look for such extreme applications? Once upon a time I saw a device that looked like a mug (in which a fire was lit) charging a connected device. For longer camps as he found. [Read more]
Again - there is a description in the link. https://sdelaysam-svoimirukami.ru/290-ehlement_pelte_on_zhe_termoehlektricheskij_modul.html I hope I will not be accused of being politically incorrect in... [Read more]
I mean, how much can you get from the "air" cooling you have just described. My guess is it won't be 6W, but how much? [Read more]
It is puzzling that after switching on the converter, the voltage on the module did not drop anything, but on the contrary, it grows as if nothing was weighing it down. Have you measured the power of one... [Read more]
I have never written anywhere that I will get 6W from such a candle and one link. Based on the first observations, I optimistically assumed the maximum performance for which not so simple conditions could... [Read more]
When I was in the Soviet Union, I saw such a thermoelectric generator and it is actually quite powerful to power the R 108 radio. It was a massive ceramic cylinder in which hundreds of iron / constanthan... [Read more]
You wrote that you bought a 60 W cell for testing, and elsewhere, that you estimate the yield at 10% - it turned out to be 6 W. My guess is that under ideal conditions. However, I am curious how much can... [Read more]
First of all, it should be remembered that a thermocouple is an extremely simple device that works on very simple principles. Its voltage depends only on the temperature difference between the cold side... [Read more]
Mass-produced in India :D https://www.amazon.com/Ajirangi-Portable-Thermoelectric-Generator-Camping/dp/B00YPKY1ZQ [Read more]