How to make a ThermoElectric Generator

[@williamosman]

Awesome experiment! However, when measuring power you need to record both the current and voltage at the same time (or same conditions if you only have one dmm). If the electrical load is too large (low resistance) the power supply can't keep up, and the voltage will drop.

[@Beanpapac15]

William Osman o shit, didn’t expect to see you here

[@BlenderGuy1]

@@Beanpapac15 o shit, didn’t expect to see you here

[@IndraKurniawan-vk2qb]

@@BlenderGuy1 o shit, didn’t expect to see you here

[@BlenderGuy1]

@@IndraKurniawan-vk2qb OH WOW! I did not expect to see YOU here!?!

[@novarain2249]

That is one of the most efficient breakdowns that I have ever heard

[@TommyCallaway]

We used thermocouples while I was in the air force to measure jet fuel temperatures - those operate on this concept. Love the videos, keep it up.

[@KeystoneScience]

+Tommy Callaway that's pretty cool!! Also thanks !

[@JaytleBee]

But did you measure temperatures hot enough to melt steel beams?

[@kd1s]

And the biggest use of of Peltier junction is on spacecraft in deep space - they use an RTG or Radio Thermal Generator for power.

[@theLuigiFan0007Productions]

Ah, nothing like a nice warm piece of Plutonium or Strontium roasting itself as it generates electricity. In fact, old pacemakers were powered by tiny little Plutonium RITEGs inside. www.orau.org/PTP/collection/Miscellaneous/pacemaker.htm To be honest, as long lasting power supply, a RITEG is a very useful device. Lots of them were built in Russia for off grid use. Most were Strontium-90 based. Only problem is the radiation.

[@MHRolley]

Great vid, and I love what you do with your channel! :) Just a quick comment, the semiconductor used within the thermoelectrics are typically based off of n-type and p-type Bismuth Telluride (Bi2Te3), not silicon. This is because is has a much lager voltage generated in this temperature range (ZT~1 at room temp). The difference between the n and p types are as you correctly said for p has a higher amount of "holes". The n-type is likewise doped with a larger amount of free electrons for use as charge carries. The metal contacts do wire the thermocouples in series, but also actually a bending effect of the semiconductor Fermi bands that enhances the voltages generated and allows for this effect to take place (see below). Also I'm sure you probably know that a thermocouple (The thermometer) only measures a temperature differential relate to its voltage, and hence need a compensation "cold-side" reference found inside the multi-meter. Great work though! Thanks for uploading this +1 sub :) [EXTRA PHYSICS] The way it allows electron promotion into the conduction band of the semiconductor is through the heat energy needed/or rejected to facilitate the charge carriers moving from the different Fermi levels between the semiconductor, and the metal contact. This is why the module gets hot and cold at these junctions.

[@magnum8264]

I like how you explain things,you talk quickly but efficiently!

[@novarain2249]

I've never had somebody so effectively describe the p-type substrate

[@Milhenar]

Can you upscale this effect and put it in the wall of a house, so that when the outside is cold and the inside is heated it would generate electricity to light up the house?

[@ForWhomBellstols]

Its too advanced for a noob like me, but I'll come back to this soon, btw man you are one of the best KZbinrs ever, thanks for your movies.

[@pirateskeleton7828]

Have you considered that that voltage you got from the aluminum was from the thermocoupling between the alligator clip and the aluminum?

[@UrgenthelpwithSubscriptionsHel]

You choosed the wrong plates. Ampers are very low. You need to use TEG. TEC is for cooling. Not for generating good power. Thats why companies have built Tegmart and deviwatt with TEG modules. Not TEC. TEC is thermo electric cooler. But TEG is a thermo electric generator.

[@magnum8264]

Thank you

[@clutch1141]

this is the principal some space craft/probes use to generate electricity using plutonium for the heat source.

[@DivPivShiftmaster]

pretty cool thanks for the info!

[@dimasriadi6048]

Hi, i wanna ask about peltier. im going to make same project with you, and there are some questions: 1. how many degrees (max) can peltier spare? 2. how about the peltier's durability? i have hot source almost 150'celcius. and cold source 25 ''çelcius'. from this source, how many (volt) can i take and if i use it everyday, how long durability of peltier? Thanks,

[@dimasriadi6048]

and one more question, what type of peltier should i buy for it?

[@bronsonstephens5799]

I Was Just Thinking About This Earlier Today! Perfect Timing!

[@AuditoreMs]

Great information. I had no idea that heat could generate power... though when I think about it, sorta makes sense. Good to know! Where did you get those cells?

[@willspargo8010]

You also need to experiment with instant hand warmers and instant ice pack and see if you can harness endothermic / exothermic reactions and convert it to usable power

[@nirvanamadpaul]

will spargo cloths that make electric with a holder to charge phone.. everyone will want a few

[@hodamahmoud4073]

if we use the wasted heat energy which produced form halogen lamp is it will work

[@reverendallman8110]

Thats crazy. One question though. How many of those would you need to say generate the same amount of power coming out of the wall?

[@mrinalthakur3459]

You have used a TEC Thermoelectric Cooler for this job use have to use TEG Thermoelectric Generator

[@jordanlapointe8207]

yes, while camping or during an emergency I'll just pull my spare TEG out of my pocket and build this.... haha great video though! side note, they do sell a camping stove using this principle. it's called a bio-lite stove or something.

[@jasonbaker541]

You're a Wizard Harry!!! That is amazing!

[@KeystoneScience]

+Jason Baker haha thanks!!

[@jumpieva]

i assume there is a material limit that can handle a max heat, even if the desired difference was incredible. so for example, how would you utilize this effect in lets say...a chamber of superheated gas at 1M degrees F? but sounds like the design would have to be different?

Nice, also for a mechanical version look at sterling motor :D

[@KeystoneScience]

+Jay Mee haha yep, sterling motors are my favorite xD

[@jordanlapointe8207]

Keystone Science they are tricky to get efficient, we tried to build one for my Engineering final design project.

[@mdole9677]

Jay Mee

[@greennights2388]

The Kerbal training suggested RTG's - but I was uneducated. I see now you need silicon semi-conductors and temp differential duality. cool thanks. well explained. so would that work with a differential of space and subspace? : )

[@realcygnus]

cool........idea for a vid......try to demo aspects of ultrasonic cooling/refrigeration !?

[@KeystoneScience]

+realcygnus hmm that would be pretty cool xD I think I might!

[@DrHarryT]

Unfortunately this is not an economical method of producing energy at the current cost of $2.00 per pad. (8 pads = 12V@150Ma) This means that it would cost $16,000 to generate 12V@150A-1800W and that is only at peak sunlight heat hours, like a solar water heater. You would have the cost of building a support system like the solar water heater (put them in a case with glass and paint them flat black) but also have a cooling method for the back side.

[@gregt2587]

I have a question , since those tegs can either get hot or cold , could you double stack two together , one side produces your heat and your other one reverse to produce cold to generate your power with the best cooling option? I would really like to know as I want to try to build a generator myself to charge a battery system for off grid.

[@xploit6589]

You should make a video about the different currents for beginners (A/C D/C)

[@emi22n]

yesterday I was searching for this Peltier effect,and now !

[@KeystoneScience]

+ali 6e7 haha xD

[@hiroshima9120]

graphite + alluminum for your cell setup, you're welcome :D

[@rotaryphoton137]

I dunno what your name is but is possible to make a giant thermo type conductor, like say one end in the ground and the other above where sunlight is concentrated?

[@nobleofftrack741]

Congrats on 75k subs 😁.

[@nobleofftrack741]

You have gained like 20k subs in a month lol

[@KeystoneScience]

+Joss Noble haha yep xD and thank you!

[@CrimsonHarpLovegoddess_1]

you should make your very own suncell

[@evilchickenman6446]

You should make one of those pyramid hologram things, I have always wanted to know how they worked 😀

[@tsraikage]

what will happen while applied voltage if i cool hot side? will it work like compressor/extruder and make it colder or its efficiency goes down and cools less?

[@two_number_nines]

i think a good way to raise the efficiency would be to stack a few of those on top of each other. in fact there are stacks like this on ebay, but they are sold in single units which cost 5$+. i would play with those for hours and hours if i had a few of them but they are too expensive. i might have to stick to DIY design with aluminum and carbon rods from batteries

[@michaeljones2926]

does it work the other way around? Can you put it in something cold, and have it also create energy so you could charge things? that is if it was waterproof, of course.

[@megatron_sonic9281]

you might not end up reading this but thanks for making this video I didn't even know that that effect was a thing

[@jonathanclark6489]

youre next level, wow!

[@Bri-Sci]

Could you make a video someday explaining how to make a refrigerator.

[@ProtoG42]

Great job bud!

[@lupitchr1]

If you move the heat source from one end to the other, would that reverse the polarity of the conductor?

[@jordanlapointe8207]

awesome Keystone!

[@sagetomb8578]

This really reminds me of a Stirling engine. which is more efficient at this?

[@KeystoneScience]

+Sage Tomb the sterling engine is much more efficient, if I remember right, the sterling engine is like 30 something % efficient and the thermo electric module is near 5% I think

[@kanepham4112]

Hi. So can I just use only ice to make electric (without fire)?

[@Magicoalby]

you can make a video where shows how to build a large tesla coil like the one for you to start video back please, it is important

[@nirvanamadpaul]

would enough computer heat sinks on top of a log burner, in a canal boat (able to pump cold water via a tank) be able to charge say....a car battery in theory?? thanks

[@SuperJhon360]

what would generate more power the thermo electric effect or a sterling engine rigged to generate power because they do exist but which is more practical

[@antony5339]

nice channel :3 i love to see the applications of what i study at the university :)

[@KeystoneScience]

+Maku 93 thank you!! :D

[@Unknown-mn1ui]

Hi, can i use one thermoelectric generator, to charge a phone

[@willspargo8010]

You need to try to see how far you can push it For example using a much hotter flame and something cooler like dry ice or liquid nitrogen There might be a range where the temperature might not matter and become ineffective to the output

[@two_number_nines]

those are limited to between 150 C and 300 C on the more expensive ones. you cant go too far with them when generating

[@project-unifiedfreepeoples]

When the poles finally reverse and the ozone shuts down for a few days, electricity as we know it, will be as of not. Tips like this will be the difference between survival and well...

[@celestinoaquilizan5999]

EHow many of those peltier you showed create a 12 volts and could charge a 12volts 10amh battery..?

[@user-dy5mu5zy5l]

I would like to learn how i can make a plasma globe using a light bulb....if possible please make a video about that

[@mujahithibrahim6251]

Thank you for the explanation. Great stuff…

[@arbuusia]

awesome video

[@revimfadli4666]

So this is what Hawkeye does when not doing superhero stuffs

[@Not0rious7]

Great Job!

[@טלבלוך-ס5ל]

really interesting video

[@yxhankun]

can u slow down when explaining, l slipped out after 2 minutes of watching.

[@noahhounshel104]

its called pausing the video or slowing it down using that gear in the bottom right corner of the screen :P

[@jasonbaker541]

If you click on settings you can slow down the play speed, but then he sounds like he's been drinking all day... LOL

[@callidus5586]

Jason Baker 😂😂😂 anybody would sound like. imagine fifty ideas coming in your head at once... Weekly.

[@zeussx2120]

Noah Hounshel Not everyone is on PC.

[@saehian]

Ya, too fast. I have to coup up the voice instead of video. It just blah blah blah all the way.

[@JacobEllinger]

what if one side was the outside wall of a vacuum?

[@Bbqchcichenman]

so us this principal if you could take abolute zero, and say, the center of some large star and generate large amounts of power. Am I correct saying this?

[@KeystoneScience]

+Henri Holub yep! ( well technically not absolute 0 as the electrons wouldn't be able to move I think , but very close to it sure! ) also the metal would need to be able to handle the heat difference without melting

[@platinumscience7356]

What if you used liquid nitrogen to cool the other side??

[@yusamac2053]

That's so cool!

[@XZenon]

Yeah!

[@alchemyportal6593]

Very much understandable. Beautiful. Thank you dear. GOD bless

[@rickmejia6979]

Love this chanel!

[@flizzy4645]

Hi can u put a pcb circuit in a TEG module?

[@menopassini9348]

Please build a Bigger Teg generator, that you could use to run 12 DC LED lights for work shop. It would need a voltage regulator and a battery. 200 watt Teg generators are for sale already but they want $700.00. If each Teg plate is only $2.50, someone. has a Big mark.

[@ussbased-a7074]

2:08 Wait, is that a NPN transistor?

[@LukeDeGraff1]

Negative positive negative

[@novarain2249]

You are awesome

[@lukeb6394]

what an interesting video thank you sir

[@KeystoneScience]

+Lukes Locks no problem! Thank you!

[@טלבלוך-ס5ל]

make a video about how a boost converter works

[@AbhishekSharma-mf3do]

טל בלוך I would like that too

[@mateuszsoszynski7880]

So i can make electricity by fire and aluminum?

[@elijahsimmons2900]

How does this compare to a sterling engine for efficiency?

[@KeystoneScience]

+Eli Simmons much less efficient, a sterling engine is around 33% efficient, while these are probably about 6-15% efficient ( perhaps even less ), but then again, that number could be improved if you trapped all the heat so that it could only go through the module and sufficiently insulated the cool side .

[@azzaropro6872]

where do I find the modules?

[@madhavkarthikeyan6367]

so useful

[@nattankress]

You could build an RTG with this.

[@federicotorres3685]

can the heat come from any face ?

[@theowl2326]

great video :)

[@TimmiTification]

Hello great video as always and yes I did learn something. Could you please show me how to build a device that will charge my phone as I pedal my bicycle. Many thanks.

[@two_number_nines]

put a battery bank on your bike

[@TimmiTification]

Gotin Fuklio I was thinking more like getting power from the spinning of the wheels of the bicycle. Thanks for the suggestion.

[@two_number_nines]

Tim Boddington i am trolling you. the idea is stupid and the solution is easy. attach a generator to the wheel, then bridge rectifier with cap and then 5v buck-boost converter and solder usb wire to it

[@TimmiTification]

Gotin Fuklio Thanks for watching!

[@jaynilpatel8778]

nice video

[@Weissherz]

how can i stop condensation if i try to use it on a cpu cooler ?

[@Weissherz]

that would be hard in a computer case

[@hadisergan1]

thank you

[@IRowspan]

you used TEC tho cooling not TEG generation of electricity. so ur results could of been better

[@lordmarshall1139]

cool man

[@athp]

Nice video

[@KeystoneScience]

+MLGaming thanks!

[@ameraali652]

i want to message you i have a project about that please reply

[@trulyinfamous]

So it's basically a sterling engine that generates electricity instead of movement

[@KeystoneScience]

+Truly Infamous yep

[@MatHolliday]

I enjoy watching your videos. Alot of good content. My only complaint is that you talk too fast.

[@biscuitsngravy3566]

Seebeck effect actually

[@ArcaneAcadam]

How much of the heat is converted to energy?

[@KeystoneScience]

+ArcaneAcadam 1742 with this setup probably only about 6%

[@ArcaneAcadam]

So for the best output two heatsinks & would adhesive thermal paste help?

[@domenicocozzolino1831]

great video..can I make a capacitor charger out of that?

[@KeystoneScience]

+Domenico Cozzolino yep!

[@domenicocozzolino1831]

I will try

[@domenicocozzolino1831]

Thank

[@alexyochum3139]

Put a bowl full of liquid nitrogen on top to get a bigger temperature difference.

[@Nolanyoyo]

You never made a ThermoElectric Generator.... You can make them out of aluminum and copper sheets and some other metals. I doing this from memory but I think the best is steel and copper.

[@jamesnorman4998]

Tesla coil please

[@mw10259]

THANK GOD YOU NEVER TAUGHT SEX ED , OR I WOULDN'T HAVE HAD CHILDREN

[@teri-x7561]

liquid nitrogen would probably work well

[@KeystoneScience]

+Teri-X hmmm very true, I'm super curious to see what voltage it would get to.

[@bassboostmusic9728]

now use liquid nitrogen for the cooler