Exposing a FAKE Thermoelectric Generator and building a REAL one!
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- เผยแพร่เมื่อ 30 พ.ย. 2019
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In this video we will have a closer look at a fake thermoelectric generator and find out exactly why it can not charge up a smartphone like advertised. While doing so, you will learn quite a bit about Peltier modules. Afterwards I will then show you how to create a real thermoelectric generator that can charge up a smartphone through the power of tea lights and ice water. Let's get started!
Thanks to JLCPCB for sponsoring this video
Visit jlcpcb.com to get professional PCBs for low prices
Music:
2011 Lookalike by Bartlebeats
(incompetech.com) - วิทยาศาสตร์และเทคโนโลยี
![ใจดำกับฉันก่อน - วงทัพห้า [Official MV]](http://i.ytimg.com/vi/I48wa4qurAU/mqdefault.jpg)
Publishing fake projects is a thing. I understand why people do it but it upsets me to think how many viewers are frustrated when it doesn't work for them. This frustration certainly leads some folks with curiosity about electronics to abandon the hobby before they really get started.
So true it almost happened to me I was watching videos with fake and wrong information when I was younger but I found channels like this and now I'm more interested in electrical engineering 👍
SubigirlAWD _ That's awesome
they're everyhwere on youtube. suprisingly with more than 13 million more views. i only remember americantech but thered too many of them
Is it possible to calculate the efficiency before hand? it will save lots of time if you can visualize the result.
and do you hnow what it even worse? it's from "Verified" channel
I LOVE how we've basically done concluded the same design on this idea, independently haha. Great minds and all that! Or the logical conclusion. Loved the in depth coverage of the current capability etc! Good job. Really going to have to revisit this topic actually... got some new ideas.
Btw, we should do a collab sometime!
Yes yes, you both should.
Agree!!! Can't wait for the collab
Sir I am a subscriber of both of you.. and a big fan also I would love to see you together in a same project video.. plz do it..
Best of luck to you both😄😄👏👏👏👏👏👏👏👏
Tech Ingrediants just built a HUGE TEG from 36 TEC's! It produced 100V DC with no load in boiling water with cool water pump, which was head pressure from a river!
th-cam.com/video/hDLWO_Iaflc/w-d-xo.html
I used frying pan xD
No need to tell us not to call him out, cause he took down the video, lol.
well he still has it up on his fb account
Yes, there is a need. Read deeper into the comments, heh. No fanbase is free from arseholes, and there are plenty of pitchforks and torches in the shed over there...
@@Corbald which one is the sharpest? 😜😅
@@EvenTheDogAgrees I agree with that one. You may get charging sign, so your phone will turn off battery saver and discharge faster
i'm sure thats an oxymoron
Someone did this with a bunch of the TEC panels, I think it was 12 or 24, he used river water to cool it and a campfire to heat it. It was really impressive. It was Tech Ingredients, he also made a fridge using them.
Thanks for sharing this Karl Jay! 😊🌎❤️💪
0:02 GreatScott turned into a Minecraft villager
Hu...humm
LMAO XDDD
😂
The second hurm...after done trading with steve
🤣
Ooooo Electroboom should be interested in this.
His next video:"How to destroy your phone using a candle,heat sink and some Peltier device".
THE RECTIFIER!
You'll should do better job of bringing this to him!!
I think we now know what his next video will be!
Well first a moment I thought I was in electrobooom's channel
And get shocked in the process!
For anyone replicating this experiment, be careful when placing a bunch of tea lights right next to each other. If there’s not enough distance between them they can get hot enough to ignite the liquid wax and you end up with one giant fire.
@qwerty mnbvc Not the efficiency but power output should be higher for a short while before the whole house burns down 🤣
@qwerty mnbvc LMAOOO
@@scientistharsh
Good, that mean more power.
Thank for this video, it was really intersting.
The thermo-electric generator efficiency depends on the heat flux that goes trough the pelletier module, but in both designs (yours and the fake one), most of the head flux just pass trough the surrounding air. Therefore I presume that the design can be improved by adding some insulation, that prevents as much airflow as possible without switching off the candle. As a first try, I'd just replaced the metal grid cylinder with something much more closed like a soda can with a small opening, or a cardboard box attached to a heat sink.
THE RECTFI.... eerrr... GREAT SCOTT!
ElectroBOOM lol
OMFG I just started watching that video after this one, I nearly fell of my chair laughing!!
FUUUUULL BRIDGE RECRIFIER
RECTUMFRIER
Cyber Cat 😂😂😂😂😂😂😂
This is the first time I'm seeing his face
I was like "so this is what he looks like..."
He showed his face years ago
Hot
This confuses me. Every couple videos he how's his face.
Same
Engineers: this is a peltier Generator, basically generates electricity from temperature difference between cold and hot...
*_everyone else on the internet: OMG LOOK A FREE ENERGY DEVICE!!!!_*
Yeayou can also scream into quarz crystals and produce a small current.
youre speaker is also a microphone. Hook up a osci and talk into a speaker, looks pretty cool and is a fun party trick (well on a party full of electrical engineers)
This is the Piezo electrical effekt. You can either supply current to a piezo crystal and the crystal will start too vibrate or you vibrate the crystal and it will output energy
In theory you could build a piezo generator running on the screams of humans wich is probably how hell produces its electricity
The skeptic in me always says... it's not free when ice is needed and so are candles. Energy is needed to make the ice and candles cost money.
@@afox5319 similarly, you can shine a light at an LED to produce a tiny voltage or power a solar panel to produce a tiny amount of light. If course neither is as efficient at doing the other's job, but the principle is similar.
Fixing hot plate at 50 degrees and the heat sink, which thermoelectric module would produce more power: TEC1-12702, TEC1-12706 or TEC1-12710?
TGM-199-2.0-1.2
Wow! I have watched numerous videos of you, but now I see you for the first time.
Keep up the good work!
Feels like a Mehdi video but with less/more brow. (less overall brow but more brows if you count them)
True fact
big brain maths
Less area of brow, but the brow is higher.
The brow gets compensated by the (dashingly handsome) beard.
I definitely prefer GeatScott, Mehdi humor is quite noisy tbh
0:10 first reaction video from GreatScott
I like how the "pedestal" you put the tea light on is just a WIMA film capacitor
You are my favorite you tuber in electronics. I have learned a lot through your videos. Thank you for taking the time to make awesome videos
Nouuu nouuuu
- Great Scott(2019)
Random.
Does your family tree look like a ladder ?
Random. No. Just no
Bro you are life savior.
I'll be completing my electronics engineering this year.
Your videos are very educational.
Thanks
Great practical presentation. Very clear build process. Logical , informative and entertaining video. Thanks a lot. Good Job.
Nice honesty. Relatively well made this scott version and still so low charging current.
Roll the intro! THE RECTI- oops wrong channel again.
PURIFICA- eh... different thing.... RECTIFIER!!
Devlover Nibir yes
@Devlover Nibir you dont have to ask, we already know
*full bridge rectifier*
LOL, that intro is like when ElectroBOOM rectifies videos, only that much more calm (and without getting yourself shocked).
*bleep* *bleep* *bleeeeep*
Scott you are one of the best out there if not the best one here on youtube.
Thank you very much scott and keep on teaching us.
You need to apply pressure to the peliter to get maximum effect out of them. The thermal exchange between the plates will be really low without the pressure and that will of course effect the power output. These things is said to have been used on chimneys in Siberia. Really cool things!
I love this new style scott... super awsome way of introduction..
Thermally conductive paste is actually a bad conductor of heat as compared to the metallic heat sink. Only small proportion must be used to fill the contact gaps between the heatsink and the module. You have used so much paste that it might have adversely affected the performance of the heatsink to radiate heat.
I was just going to say the same thing and was scrolling down to see who had beat me to it. Nice.
So true
TEG expert here, nicely done GreatScott. Here’s a few bits of info on the subject.
1. The effect your seeing is called the Seebeck Effect.
2. The most efficient TEG system made is around 0.4%.
3. TEG’s are best suited for space exploration. This is because of a: vacuum of space slows the oxidation of the substrates b: infinite cooling due to the vacuum of space c: infinite heat from celestial bodies i.e. the sun. If no passive heat source can be used, radioactive isotopes are used, these are called RTG’s (Radioisotope Thermoelectric Generators).
4. The common substrates used to make thermoelectric modules are made of Bismuth Telluride or Lead Telluride that is doped with different compounds to make them Negative Or Positive Charged.
Surprisingly, there is only a few manufactures who specialize in this field of alternative energy. So far China is in the lead in making these modules at such a low cost. High Efficient modules can run into the $1000’s. Makes it difficult for US manufactures to compete.
Good video again bro.
You have taught me quite a bit over the years.
I appreciate your teaching.
GreatScott is the only TH-camr I know who still uses handsaw...
Where is Colin Furze? :)
Check out Uri Tuchman, hand everything. Wizard of creation. Made his own lathe etc.
Now I see how you say "Let's get started" :)
Enjoying your videos. Few years ago, bought a modified to be run by kerosene, RITEG or RTG Radioisotope Thermoelectric Generator. Those have been used for decades for powering remote lighthouses. However, it uses TEG-s not TEC-s. The G stands for Generator, and those come usually in darker mostly gray color.
WOW that was so interesting. Thank you for the clarification!
Great job... we need more debunkers like you to stop these money-grubbing liars! 👍
I love proyects with fail parts (soldering aluminum) that gives a better view to the public
I know the theory of using those rods to join aluminum. I also know it takes practice.
Thick aluminum is a very good thermal conductor. You pretty much have to heat entire parts. Otherwise, the heat you apply at the joint will get carried away to the cold parts of the metal and too much crud will build up before the joint is up to melting temperature.
Then there is surface prep and how to get the bead started.
Surface preparation
I'm glad you made a video like this, way too many fake electronic videos out there.
Great work.
Asking the viewers to not bully the guy with the fake project. Class act!
so GreatScott is rectifing some YT videos Now 😂
Nice build 👍 what if you made a few of those and you wired them in parallel do you think this would work over a bigger heat source without ice
Ahhh....!!!finally!!!! that was a relief i was waiting for ur videos since weeks truly woked as a rectifier
Thank you Scott. I keep thinking to build electricity generator using peltier, which hot side os being heated by focused sun ray (fresnel lens). Store the energy to lead acid battery. After watching your voltage-amperage numbers on multimeter it is obvious that I will drop my plan and stick to Solar Panel instead.
I was so confused. I always thought, from your accent, that you were Japanese 😁 my bad! Love the videos, keep up the great work!!
"Video unavailable
This video is private."
Haha, looks like his video is not public anymore xD
with your rebuild of his project, I would suggest that you could increase your efficiency a whole lot by getting the candle closer to the flame, surrounding the pencil holder with aluminum foil and operating it in winter time with colder air passing by the top fins.
Also for the one you made, spread out the modules so there is more heat sink per module and use a bigger heat sink
Love your videos man! I have learned SO MUCH from you. Thank you.
Hello. Instead of TEC versions, use TEG, that is for GENERATORS :) Thanks for video.
Yeah, people don't realize that the type of thermoelectric coolers used as coolers in mini fridges don't work well as generators, and the thermoelectric generators don't work well as coolers.
(T)hermo(E)lectric (G)enerator as opposed to (C)ooler. TEGs are designed with a peak efficiency at high temperatures. The temperature differential (hot side, cold side) is what generates the electricity. Amazon has a TEG that claims 10 watts, but that is at a 120 C differential which is pretty difficult to reach because the conversion efficiency is closer to 5% so keeping the cold side also includes pumping away the wasted heat.
What you should have done with the aluminum solder is to clean the oxide from the aluminum in order to clean the joint.
First time putting a face to a voice. I thought you would be a bit older. Glad to have a face to a voice. Your penmanship is still top notch!!! I wish I could write that good.
I really liked the format of this video, it was different but really good
ich mag diese perspektive am anfang, bitte mach das in jedem video so
Unfortunately, most videos featuring peltiers (including this one) forget how crucial clamping pressure is for the TEC's efficiency. Nice video for a proof of concept though.
I always heard your sound only and here you are in front of the camera, great !
I like how you present the math behind your project. This by itself is a proof of the authenticity.
This is the first time I have seen Scott.
Techbuilder has a few 'fake' projects. If your looking for more stuff to debunk look at the piezoelectric generator.
Thanks! I love to see fake projects busted! Your design is nice, too.
We use TEG's (thermal electrical generators) in the Bush in Northern Canada. Natural gas flame on one side produced about 40 Watts.... But used a tone of gas.
An interesting experiment would be to attach these TEG unites to the side of a wood stove.
Nobody:
GreatScott: But never the less
Alexander nevertheless is a single word.
@@ElZamo92 obviously this kid is slow. Anyone still using that meme in 2019 is obviously way behind the times
Would a stirling engine be better with a dynamo and same amount of candles?
Stirling engine phone charger. BRB, making 1000 and flooding banggood.
Considering efficiency's on paper, a Stirling engine should produce more power from the same temperature differential. Life isn't so simple as doing the math, it's better to test these things given practical limitations of designs and cost.
Perhaps. Just as Tj Wolf commented above, this should be determined experimentally. In general however, Peltier technology so far has been inefficient, and a well-designed Stirling engine and a DC generator might do the job better than Peltier modules given the same thermal energy.
Stirling engines wase build to make electricity
I seem to remember reading somewhere that the Stirling effect was the most efficient it was possible to get with regards to capturing energy from heat transfer, so it'd _probably_ work better... That said, my memory isn't what it used to be, and there were probably qualifiers.
i have a whole new level of respect for you and your channel. thank you
Love this 😁 I'm working on something similar. Note that ThermoElectric Coolers and ThermoElectric Generators are similar but different. You're using the coolers TEC in reverse but you'll have better results with the generators TEGs
2:11
> A bit of grease
Hello Scott. In my final Electrical engineering project I have worked with a Brushless DC motor (form a hard disk) as a wind generator, and I would like to know why is it that you get less energy form the electrical machine working as a generator.
I though all electrical machines were reversible without different power losses!!!
Thanks for your great videos :)
With motors, AFAIK you get quite well the same efficiency both ways, provided you handle the many-factor-dependent voltage and current properly.
With peltiers, I don't know but I think the major caveat on using as generator is the practical inability to get all the heat gradient "focused" through the peltier material interface. Ie. big proportion of externally administered heat flux will "bypass" the interface through ambient heat and structures, whereas when when the peltier is powered by electricity, all its generated heat gradient is produced at the material interface, as it is its natural origin point and thus any of it cannot "miss" it as in generator-usage case.
Very Thanks Scott, this is very useful information!
Wow, da zeigt sich mal jemand nach ner Weile. Schön dich mal zu sehen 😂
Ganz nebenbei : cooles Video 😉
When soldering aluminum, I believe you need a flux to clean the surface for the aluminum filler material.
Yes, but it has to be a pretty nasty aggressive flux.
Aluminum very quickly reoxidizes if you scratch off the oxide layer. There are fluxes for low temp tin zinc solder and for high temp aluminum zinc solder if using a blow torch.
I didn't even think it was possible to solder aluminum. Solder doesn't seem to wet it. I guess I was dealing with the oxidation layer though.
To solder aluminum you have to warm up the material from the opposite side, never heat up directly the solder rod. Flux is with special solder not necessary, just a bit skill
I would argue against soldering aluminum altogether.
Clean way to do joints is TIG welding. If you cant or dont want to do that, then stay on the side of screws and bolts.
You should check out techingredients’ version of a TEG
Tq bro actually by this video i got some values of voltage and current ratings of TEG its really helps alot for my project thanking u
Good to finally see you. Love all your work!
"This has to be a joke"
Dude, you have a great meme potential
Techbuilder was my inspiration while getting into this hobby, his radio transmitter video is my favourite. I like his video style, they good quality. I think if he can get people into the hobby, he's done his job good enough.
Great job Scott!
One of the best channels on TH-cam! We love you in Louisville KY Scott
There are Thermoelectric Generators which are like the TECs he's using in this video but are made for generating electricity (as the name suggests) much more efficiently. NASA has been using TEG and radioactive sources for some applications, in the hundreds of watts range iirc
Yes, and Soviet Union used them even terrestially all around, becoming infamous after the government collpased and people began to steal them for valuable scrap metal, with their plutonium pieces mixed with all the scrap iron.
I would be very interested to have similar thermoelectric generators, to be used with non-nuclear heat source. Another Soviet marvel were the lanterns with integrated thermoelectric elements to power radios and other low-power devices. I think they might suffice for smartphone charging, or at least could be nowadays made as such refined versions to suffice.
I wonder how such elements are structurally build from two metals, as all demonstrative examples have been about wires twisted together. But why couldn't we just have those bimetal interfaces as plates of different metals bonded together? Of course we need two interfaces though. Common sense would say that the larger surface are the more power? But maybe it's more complicated. But can't be too complicated, as working useful examples do exist.
Efficiency suggestion: 1) Use an in insulative material for the sides of the water reservoir instead of the aluminium. You could also add a top. Both will make the ice last longer. Someone already mentioned adding salt to the ice water to make it colder. 2) Add an insulative skirt to the bottom as well, the candles will fill it from the top down with the coolest air spilling out at the bottom and the hottest air will be trapped at the top.
Thanks for information dude
I think it's first time I see Great Scott face! Thank you for the Great content!!!
Take a peltier module to a geothermal hotspring during the winter.
The French channel "Incroyable Expériences" did the same thing but for real a long time ago
I've never thought that Tech Builder may make a fake projects . I am following him since a long time and he has some very good projects
Excellent! Thanks for the creativity!
I've been following TechBuilder even before he had youtube channel, he did a lot of his projects when he was young so this one might be just remake of his older project (not trying to defend him, he should have redo all calculations or at least mention true power output).
He also made shoes that generate electricity by using piezo electric elements when he was 15 for Google Fair 2014.
ElectroBOOM x GreatScott when?
Go outside open the lid of a bin and climb inside wait for the garbage truck get disposed of properly
@@silvia_fuku0ka845 ???
You are a Genius in your field, love watching your vids, what's really insane is that I can see you write all the formula because you write left hand and by all accounts I wish I could write as neat as that beautiful stuff, could you please do a vid on how you are holding the stylus it looks different to how a right hand person holds the stylus, I'm ambidextrous and can work with both hands sawing cutting etc but can't get as neat as your handwriting and I wondered if I'm missing how I hold the pen, it's driving me mad now I've been watching your vids for month's and tried everything ❤️👍
Is it better to wire the peltier in series circuit or parallel?
Why would we even be bothering with stuff like this, when there's a publicly available thermonuclear fusion generator just floating in the sky.
Yeah, I want to power my home with nuclear energy using PV panels.
Yeah but it goes away during half of day and sometimes hides so you need tea light powered alternatives
@@JaredConnell You can store some of the power in high current batteries and have them connected to an inverter to power your house during the night.
This device works when the Sun is not there. Personally I only see one good use for this device. Silent Generator. You can build a gas generator with 0 sound with this tgm. If you have an rv it makes sense. The problem is they are very expensive compared to the cooler units. So you can buy more batteries instead of those units. But as far as i know if you want a slient generator,even if it is very inefficient, this is the way to go.
@@ademmeral At the end of the day a Stirling generator will still be more efficient.
Hot glue: *exist*
Great Scott: this is beyond science.
i love how you pronounced pedestal. it sounded so fancy lol
It is very interesting how every now and then we discover something on the internet that seems so good to the average Joe but, in reality, it is just nonsense. I liked your style of testing and redoing the right way. It is much more constructive than what some other people does by just writing bad talking in their comments. Kudos to you.
2:53 when German gets you XD
😂
Hey could you see if you can light a LED with a “foxhole radio” like they built in WW2? I’ve been seeing a video go around where a guy uses the power from FM radios to light one for free
I cant say if that exact setup is possible as I haven't seen the video, but in theory it should work. It is the same technology used in wireless chargers. You would need to be close to the transmitter or have a massive antenna or both just to get usable power from it.
@@zachdemand4508 Yes;
Theoretical a «field» would be present proximal to the antenna;
In physics any energy can often - more often than expected - produce some energy which would result in this being very plausible experiment;
But this is no free energy ~ there is no such thing?
I did see a gravity wheel which suggests considering but no free energy has ever been produced reliably there has always been slight of hand
@@ChiDraconis
I never said it was free energy. Although it would be free to the person using the device as long as they dont pay the bill at the radio station.
@@zachdemand4508 Correct;
I was speaking to warn the few;
Just now i see that some radio stations pulled I got a brand new pair of roller-skates due to exotic statements made by uninformed
If you're close enough to a broadcast antenna farm, you can light a florescent tube just holding it your hand.
It's nice idea
I will definitely try it one or the other day👍
Regarding the peltier cell array you created, I believe that by connecting them all in series you are limiting the total current produced to the minimum.
As a suggestion: Once you are using a buck boost converter, output voltage should not be a problem to you, but power. I would try rewiring the cells all in parallel (you can also include diodes at the outputs of each cell to prevent cells from consuming each other's generated current) and see if that increases the output current you get at 5V
Thank you!
The problem is not just the current. It's the power/energy available. At 6.5V and 200mA with the lowered top, there is only around 1.2W available out of the generator. Doesn't matter that you change the wiring from series to parallel to lower the voltage to increase the current, the power would stay around the same. The buck/boost converter also can't create power obviously and because it is also not 100% efficient the power available would be less than the 1.2W. The phone charging current wouldn't change.
@@TheWingAnthony you are correct if we only consider two ideal Peltier cells. However, considering individual differences in the current generated on each cell, the series config will force the circuit's overall current to the minimum possible, compromising the total power available.
At least know I know how to keep my phone charged if I ever get stuck in the Arctic.
electroboom you switched places,face,reactions everything i am disappointed
no u
@@waliddiy9348 no u
@@personious_k no u
@@waliddiy9348 no u
no u
This is probably the best example of i am about of this man career
Nice to finally see the face behind all those tests and builds
Replace the little tea lamp with about 30kg of glowing plutonium.
You are something else :))
Like satellites? Yeah would be cool, let call in at the shop for some on my way home....
Should work for about 50years (Voyager is still pottering along).
I thought he was watching ElectroBOOM failed attempt
Great work on video mate greetings from spain 👍👍👍
@GreatSott! It would be a good improvement to have the cold side have water passing through it (from a hose or a stream) as the cooler; could just be a coiled copper pipe or a sealed box with an inlet and an outlet.... and for the hot side, instead attach it to a copper bar/plate arrangement that can be stuck into an open fire. The whole key would be keeping the peltier itself under the temperature for it's junctions melting on the hot side, but I would imagine you could add considerable heat and cooling this way; possibly much better output for a doomsday/survival scenario.