Generate electricity from your body heat

A demo showing a seebeck thermoelectric unit generating electricity. The seebeck makes more and more power as its top side is heated.

[danielkliemczak]

Which metals did you use?
The n-type must be on ice to cold?
I am starting to study seebeck and other thermal effects for... Curiosity...

[Afrotechmods]

What is that flat, brown, textured substance underneath the multimeters? I think it needs a label for clarity.

[Logan-qinx]

It's a wonder no flagship smartphones doesn't have something like this implemented...Would be truly revolutionary

[field]

Agreed...the price of the module used in the video is outrageous. I forgot how I found his part number... maybe from his guide at instructables.

I bought some Peltier coolers for far less, just $12 each (and made a video with it in use).

[winterhaydn]

I'm so glad you labeled the technical aspects. ...fire, hand.

[Kariudosan]

@ideeman1994 It's essentially different names for the same thing.
Seebeck is generally associated with temperature difference + 2 different metals = electric power
Peltier is generally associated with electric power + 2 different metals = temperature difference

There's a bit more to it, but that's the gist of it.

[ohnedich]

@myNerdStuff I have 5 of these, plan on using 12, I found a heat source that stays around 120F, for about 8watts. I plan on hooking it up in my garage for winter, gets around -15 C here, I think that they should put out a minnimum of 50 watts, thats just my guess, hope its more, as long as the output is more than 8w I'll be happy

[myNerdStuff]

@PyroEvil i am using the gigantic 62 mm, and max. power from two off them has been 5, 6 watts/4, 35 Volt/1, 3 amps

[AlexArockiasamy]

hey, you mind telling me what that liquid is (placed below the rod where the peltier element is placed), it would be grateful of you to tell me, as i am planning to use the same model for my school's science fair

[thedrnailsguy]

LOL. I was thinking the same thing. And what about that device he was using to add the heat?

[hatimy]

Is the temperature reading in celsius or fahrenheit? I wanted to use this experiment with boiling water but if that's in celsuis, the voltage produced is highly inefficient. Please let me know!

[definitionofis]

@ToddWalther Can you name one ? The small Stirling engines are 1.1% efficient as per the youtube experiments I watched..

[desertblbuesman]

is that 19.2 milliamps on the meter? At first I thought I was looking at 19 amps and getting all exited, but remembered these meters usually have a ten amp limit. what is the cost of one of these and do they come in varying sizes? I have a solar concentrator that gives free heat. if these are cheap

[ccraig]

@minimichelson Yeah true, but the vehicle already has an alternator that generates about 60 amps for the vehicle. This would be no help. However, it would be good if you could mount them on your roof on heat panels of some sort.. Otherwise, your alternator doesn't really have an impact on fuel economy. But I get what you mean though.

[IgorHW]

How much power could you get from CPU heat from inside the computer? It would be good for automatic fan speed control.

[minimichelson]

@ccraig412 Well they are connectable in Series & Parallel & considering that engine exhaust leaves the engine at aprox 1200F and is simply wasted thus 5+v is better than 0v

[LaLaLaLaScouter]

Hey, are you gonn a make a video on how you made that? Its GENIOUS!

[drumsrule]

What I really want to see is a giant version of this in a fireplace, one outside and one inside facing the fire. Light up a log or two and bam electricity for the house

[fairyheli]

@danich45 can't power an electric blanket with a candle, or a heater, maybe you could power those with a gas cooker, but you are better off just using a gas heater, candle fumes are quite toxic

[Michel.]

How do you call the thing that when you touch it make energy?