Primitive Tech vs High Tech

We take low cost thermal electric coolers or TECs and reverse the process to produce electrical power from interesting and readily available sources of heat.
Other related videos:
• BUILD YOUR OWN REFRIGE...
• TESTING OUR DIY REFRIG...
• TEC Freezer - Build Yo...
• 40,000 Lumen LED Aquar...
Find us on Patreon - / techingredients
Or our website - www.techingredients.com/
#Generator #FreeEnergy

[@sinisijacob]

The amount of prep that goes in to these videos is insane

[@crazystuffproduction]

IDK WHY HE DOESNT HAVE LIKE A MIL SUBS YET!

[@ronwhittaker6317]

lest we forget the doe ray me he's dropping on these projects can only think he is coming out of pocket for the material and they don't give it away economical as i see he is there's no way he can keep that up without some help I want to but I stay broke anymore.

[@gregyohngy]

@David, I would disagree with you. I played with 12 volt projects, while my in-laws in the Phillipines did not have extra cash for that hobby. They might be skilled climbing up a coconut tree, while I can not. In both cases, each of us have intelligence. To create more learning, I found that being in a computer lab with other students made me more knowledgeable about a specific computer program than if I was alone.

[@Colaaah]

@David Man, you sound like a bratt!

[@pearljameric]

It is so good. Quality content

[@batbawls]

"Any sufficiently advanced KZbin topic is indistinguishable from magic." - Arthur C. Abraham Lincoln

[@amicloud_yt]

""Any sufficiently advanced KZbin topic is indistinguishable from magic." - Arthur C. Abraham Lincoln" - Albert Einstein

[@kiyoponnn]

🤣

[@wesleymouch7498]

@@amicloud_yt "Famous quotes you see on the internet tend to be spurious" - Benjamin Franklin.

[@ThePostApocalypticInventor]

I appreciate the effort that was put into this video. I also want to show my appreciation that you covered both a lab setup and a field test in this video. It's nice to see another channel that tries to cover both thereotical as well as very practical aspets of a project. I have done that in many of my own videos and it is my personal ideal, that truly great videos should always also have some actual "lessons" in them, going beyond just entertaining the viewers (or showing off). I think you have found a very good mixture there! Best regards from Germany.

[@BakamonNO]

I love this channel. The most underrated science / maker channel on youtube

[@GlennHamblin]

I totally agree!!

[@NuclearTopSpot]

He's gonna get there eventually. Also i wouldn't call 300k subs 'underrated' necessarily, considering a large portion of the topics are rather niche, in-depth and dry for your average pop-science youtube viewer

[@midship_nc]

Anyone wanna take bets on his profession? Judging by the cold weather in other videos he must be northern......im guessing MIT professor......or shell engineer.......probably MIT

[@kiyoponnn]

@@midship_nc Plausible

[@jmsfabrication7821]

@@midship_nc He could be retired, so he doesn't necessarily have to live by a well-known university, or technical business. It's definitely northern. Those mountains look "out west" to me. There's no hint of a Canadian accent, so I would guess somewhere north-west, from Montana to Washington or Oregon. Could be Alaska or California also.

[@zpoedog]

I am an 81 year old retired heavy equipment operator That can't get enough of this channel. Can't wait for the next video. Thanks

[@unixgaming6880]

I like how you took it out and used it in a practical application, def worth the river noise haha.

[@colin351]

what was practical about it? barely audible, no quantitative data on voltage, wattage etc

[@unixgaming6880]

@@colin351 ok MR. picky butt. Don't you know the output wattage is a function of the heat input? It would vary especially with the inconsistency that is a wood fire. plus its obviously working, in that use case i don't think you'd care what the wattage is as long as you had light.

[@colin351]

@@unixgaming6880 sorry i was in a bad mood when i wrote that

[@asmodeusz28]

I like how you did that fade to black at the end.

[@TechIngredients]

Just removed the generator from its heat source!

[@asmodeusz28]

@@TechIngredients Great way to end the video.

[@oscarilmio7148]

It was "fade to cold"... ;)

[@ceycon]

@@TechIngredients Primitive way of fade-out vs Premiere(Adobe) way of fade-out.

[@matyourin]

This channel is KZbin gold... Love it, please keep it going :)

[@IrishTheHobbit]

I had a thought about halfway through this video: "Wait...is this a TV show on cable?". The quality is amazing.

[@TechIngredients]

Thank you!

[@halfmeout]

I feel like you just told the machines how to make us into batteries

[@josealmeida5768]

and the Matrix has been born...

[@zo1dberg]

They already knew, coppertop.

[@TrentTationnaiseXization]

how to make machines with our 🔋

[@percival23]

"And standing there, facing the pure horrifying precision"

[@nonchip]

that's the boring humane version though. we've invented waaaay worse ways to turn ourselves into batteries, to quote the wikipedia page on "biobattery": an energy storing device that is powered by [...] human blood.

[@stegwise]

you definitely built that fire like an electrical engineer.

[@newtonbomb]

Great content as always. No other channel gets the instant drop everything and view like yours does. I love how you never fail to spark my imagination and give me that makers itch. Keep up the great work, can't wait to see what you come up with next!

[@TechIngredients]

Thanks!

[@oliphab7468]

Hey, when you load your silicone into the syringe, if you cap the syringe, and pull back on it and hold it, you can degass it under vacuum right in the syringe. We made a little aluminum jig that would hold back the plunger on the syringe while it degassed.

[@peterfitzpatrick7032]

I have a plastic container which has a hand-operated pump which I use to make floating fishing baits into sinkers... that cup of silicone would fit into it for degassing too... 😎👍

[@oliphab7468]

@@peterfitzpatrick7032 yeah, I did not have a good vacuum chamber when this trick saved me. Lol

[@peterfitzpatrick7032]

@@oliphab7468 I like the syringe trick.. elegantly simple.. 😎👍☘🍺

[@AttilaAsztalos]

Sounds horribly over-engineered. Drill small hole through the syringe plunger at desired height, insert a pin through it, plunger is blocked! At least that's how I store my vacuum... ;)

[@oliphab7468]

@@AttilaAsztalos that is an improvement, our syringes were single use, so we would have to drill the hole every time, but the pin sounds way easier.

[@carsonpete]

“OCD maybe?” Lol another excellent video please keep them coming

[@MasterIvo]

Obsessive Compulsive Development?

[@Ant0nSunrise]

Just maybe? Look at the amount of finish they give to their every experiment. Nothing of their products is looking as "mere prototype"

[@garyplewa9277]

Your channel reminds me of a TV program I used to watch as a child in the late 50's and early 60's called "Mr. Wizard". While I can't recollect the level of detail that long ago, I do remember that I was riveted to the TV and learned a lot. Now I find myself, once again, learning about areas of science I never considered before. Kudos on your depth and breath of knowledge and the construction quality of your projects. Your videos are a pleasure to watch. Thank you for making them.

[@mckenziekeith7434]

I remember that show. Trizle Trazle Trizle Trome, time for this one to come home!

[@sealpiercing8476]

I'm torn. It's so hilariously inefficient, though it is still making more light than the campfire. Using thermoelectric materials and modern LEDs. For something that only somewhat outperforms the fire. While deliberately eschewing rotating machinery and internal combustion. In favor of very external combustion, of fuel that you gathered yourself. The schizotech aesthetic is so strong I kind of love it just for that.

[@TheDowntimesfl]

We are now talking about using this to recharge batteries at our camp off of the stove, and the exterior temps.

[@TechIngredients]

Great!

[@pufthemajicdragon]

So people are apparently talking about how to use this in a practical way. I *suppose* if you already have a fire going, that designing a peltier system that could recycle some of the waste heat from the fire might be an interesting thing to try. So to that end... buy some flexible copper tubing and turn it into a loose flat coil. Connect the ends of the tubing to your peltier block in a closed loop. Oh, and design your peltier block backwards with the hot & cold sides. Fill the coil with water and set that in the fire. Convection currents can drive the hot water motion through the coil and your peltier block and you can drop the peltier block into a cold stream or an ice chest for temperature differential. You'll want to use high pressure copper tubing because the water inside will boil - but this can work to your advantage because the phase change will carry more energy from the fire to the peltier block. You're essentially creating a convection-powered heat pump. You might need a check valve or an actual pump to help keep the water flowing in the coil, but a 1w 12v cheap "fountain" pump after the peltier block would be sufficient and wouldn't rob you of too much power. I actually recommend using the pump to help keep the coil cool. The point being that the flat condenser coil can sit inside the fire and still allow you to use the fire for cooking and other purposes. Still horribly inefficient power generation, but if you've *already* got the temperature differential with a fire you're already using, then this might be a design that could use it effectively.

[@kirkc9643]

@P A Sshh sweetie, the grown-ups are talking.

[@sealpiercing8476]

@P A Combined cycle gas turbines are over 60% efficient. If you have a heat source that's not combustible gas (such as a nuclear reactor or concentrated solar) modern steam turbines reach ~50%. This is where electricity comes from, in general. I have not seen an example of either of those fitting into a soup pot, but I would love to see one!

[@briancrane7634]

He's much more interesting than my EE profs...from back in the '70's when I was in grad school...

[@NETBotic]

I was thinking he is one.

[@TheFalconJetDriver]

I agree! 😁🛫

[@helmutheller1538]

Happy Thanksgiving! :-) Great video. I love your dry humor!! :-) What would speak against using two water/temperature exchangers and stacking Peltier elements with those exchangers: hot water|Peltier|cold water|Peltier|hot water|Peltier... Then you would circulate cold water through one and hot water through the other. No more need to mess around with silicone and foam, since the water is always inside and never touches your Peltier elements. You could even use thermo syphoning of the hot water to circulate it without moving pumps.

[@robertroigsantamaria]

you'd need a pump for the hot water then.. unlesss... you run the cold side from the fresh cold water, then the tube goes to a coil in the fire, and back to the hot side of the peltiers .. ... ... and probably to a heat exchenger to preheat the cold water going to the coil... then, out . ... probably better ways to generate electricity

[@helmutheller1538]

@@robertroigsantamaria No pump needed: use the thermo syphon principle, using the density difference between hot and cold water (hot water rises). Or you let the water boil in the pipe in the fire and use the steam pressure to bring it upward to the Peltier elements, much like a drip coffee machine "pumps" the hot water higher than the water level in the reservoir -- without moving parts. This should all be fairly simple to do.

[@SPOKTALK]

pretty sure this is what everyone was thinking when he sandwiched the device in between the two water cooling units

[@Madsstuff]

Been with this channel since The Pulsed Dye Laser video. Still not in the slightest bit bored of your content! Love it. And I am now inspired to build that TEG generator.

[@waynegilchrist1596]

I am a recent subscriber and I am really enjoying your videos. It's like being able to enjoy all the best science projects and classes as opposed to my college days where I had too much going on to take full advantage of the opportunities provided. Thanks again.

[@B0bbySneeze]

One of my favorite KZbin channels.... could watch this content all day and night. Thank you so much for all the effort you put into these videos!

[@TechIngredients]

Thank you!

[@KzLollapalooza]

Thank you for sharing your knowledge, how your thought processes work, efforts with all the testing and improvements. The video editing is great too! Well done to the team! Good luck and have a wonderful day ahead! Thank you for sharing your brain! =)

[@ceycon]

Brilliant. I appreciate the invisible and behind the scenes efforts you have made. Thaaank you.

[@isaidromerogavino8902]

Love the new intro! Can't get enough of your videos, Sir. So much admiration for your work!

[@maciekm7953]

Was about to go sleep but nah there are more important things to do 😁

[@sciencetech317]

where is the video about the peltier thermo-imaging sensor ?

[@kapytanhook]

Yeah, so interesting

[@realcygnus]

Yea, I told you guys, just even some random/unedited/non-produced/raw footage of you guys simply just F'n around, would probably be FAR better content than the best of most other channels.

[@newtonbomb]

@@realcygnus Tru dat

[@power-max]

A thermal camera obscura :D

[@michaelmcneil4168]

@@kapytanhook Look in the back of the drawer marked "Thorium Decay".

[@palamambron]

This is one of my favorite channels on youtube. I love all the distilling stuff. What I want to see is a solar still that uses a lens to boil water, and uses the steam to push a piston. That is essentially what a steam engine is. If you can use steam to push a piston, that's a steam engine.

[@lolthien]

Another great video. Great work guys. The camera work gets better every video and the experiments are always interesting!

[@adamblomberg]

I believe you could improve the heat source making it more efficient and faster as well as wind resistant by building a simple rocket stove.

[@TechIngredients]

Sure!

[@leoncryp8182]

​@@TechIngredients Love to see you do mod the heck out of a Rocket Stove. It already burns supper efficient, applications are to warm house, greenhouse, water, store heat via mass solid or water etc..... Electrical generation via PET or fridge powered via heat source Insulation in the burn chamber key, currently what I have found so far is, Ceramic Fiber Board is the best materiel to use, Refactory cement is cheaper alternative, and the cheapest would be perlite+DIY water glass from kitty litter. donkey32.proboards.com/thread/703/vortex-stove?page=1 This a very interesting alternative design, the forum is very active lot of the gurus from permies are here too. latest innovation are, Batch box style feeder and the Bell design for mass.

[@zo1dberg]

@@TechIngredients Wood gasification!

[@bearnaff9387]

@@zo1dberg I remember seeing a dude on youtube that had built his own petrochemical refinery that would crack wood gas down and allowed him to harvest liquid fuel from trash wood. It was a good example of the power of obsession and non-meth industrial chemistry as a hobby.

[@rickdees251]

@@TechIngredients What is the goal? Is it electrical power generation? If that is the goal then this needs to be compared to at least one other device in the same setting. Perhaps a device that uses a generator driven by the movement of the water itself, at one point would produce more without the need to fuel and tend a fire.

[@AdamPoniatowski]

now that I know you live in a mountainous area with lots of streams/rivers... here's a challenge for you. create a efficient microhydro generator :)

[@TheIcyhydra]

buy a cheap DC brushless motor from ali express and attach a wooden cross flow turbine onto it.....you dont have to make the boards curved but if you really wanted to you could soak the wooden boards in water to shape it then just water proof it by using a lacquer or liquid rubber

[@villagelightsmith4375]

If it runs downhill nd might be useful to someone the Federles` think they own it. Getting permissione takes decades and million$ and much greasing of palms. Envirofascists lay competing claims in the names of leetle pollywogs and such. And lawyers, sensing a battle, descend upon such exploiters in droves.

[@TheIcyhydra]

@@villagelightsmith4375 nice bot , broski

[@wrongfootmcgee]

@@TheIcyhydra nah dude, he's right. Unless you have riparian rights (rather uncommon) you are up shits creek, even if it's only a spring trickle.

[@crazystuffproduction]

@Seth Adams he looks like he could get AWESOME line/ head pressure

[@AaronSchwarz42]

Those two part foams & thermal plastic to insulate & waterproof your TEG setup are cool! Cheers & thanks for sharing how you made them!

[@cliftoncockroft6740]

I love watching your experiences keep them coming... That was simply incredible.. Thank you for posting this video

[@DearNoobs]

Another good video, Just imagine living near a hot spring!

[@littlegandhi1199]

That was what I thought he was doing at first for sure!

[@bzboii]

16:50 USMC Kabar spotted :)

[@chance1986]

Really interesting to see a large(ish) scale system put together. And the demo by the stream was great fun. As usual, informative and very enjoyable to watch. Nice job.

[@GlennHamblin]

I absolutely love this channel! You guys do amazing "real" stuff. Real F'in science, practical things that we can understand and do! Thank you so much!!

[@vennic]

River: I apologize for all the people noise in the rest of this video

[@ryPish]

I was expecting an *Epic Rap Battle* between you and the Primitive Tech guy who never speaks in his videos, then I remembered.... he never speaks in his videos. So you won that rap battle you never even though of having!

[@marc_frank]

cc is the the same or even more than in the descripition

[@NinjaSmote]

i've been a subscriber for a minute now and i've gotta say video editing is much improved not that these weren't already interesting enough!

[@stephenconway6794]

Superb, I've played around with this stuff for years waiting on more efficient units.

[@Nighthawkinlight]

This is the first power generation device of this sort that actually looks half way practical to my eyes. I wonder if at this point you may as well turn a generator with a steam engine instead, but this is safer, lighter, and fewer parts to break. Not a bad emergency option.

[@JavierChiappa]

Maybe using a little turbine in the river? how hard is to get 30W from hydro power?

[@recklessroges]

A water turbine does have the disadvantage of moving parts, but it doesn't require a fire. I wonder if it would be possible to have a series of these powered by the difference between air and water temperature and have them run a heat pump to replace the fire? (Kind of like bootstrapping the heat source from lots of little differentials.)

[@rjk7104]

AvE already demonstrated a similar commercial product, which basically looks like a coffee mug with a heat sink, in which you build a small fire so that you can charge your phone. A scaled up version of that would be kind of cool.

[@TechIngredients]

This is attractive not only because there are no moving parts, but also because there is no need for electrical regulation. Modular scalability is also a plus.

[@serapisdracosis4719]

@@TechIngredients are you guys from Western Massachusetts ?

[@rodslogic4350]

I'm off to Jaycar Electronics with a shopping list... Love this channel

[@Brooke95482]

When mixing 2-part chemicals it's a good idea to use a non porous stirring stick. Wood may suck up one of the chemicals more than the other and if it sucks up the one that is only a few grams can make a huge difference in the result.

[@timvanharen1249]

Hi guys, instructions are amazingly in depth and thorough as always, thank you. Just a tip, next time you're recording audio in noisy environments, use an active noise cancellation plugins afterwards They are widely available on the web and they really work. Audacity also has one.

[@WiBla]

Coolest outro ever, pun intended.

[@StopChangingUsernamesYouTube]

Just a thought I had when I saw the syringe: Couldn't you cap the end of the syringe after filling it, point it upward, then use it to pull a vacuum to cause the bubbles to leave the silicone more readily, then uncap and slowly push the plunger to expel most of the gas? It wouldn't be perfect, but it might make it a little less tedious. ...Or a little more tedious, now that I've typed all that and read it.

[@TechIngredients]

That will help. The bubbles that can form during the application I demonstrate actually are not coming from the silicone, but from air trapped below the silicone as it covers the rough surface of the polyurethane. That is why I recommended placing a very thin initial sealing layer before adding the rest of the silicone.

[@mikenolley9623]

amazing - production and content just keep getting better.

[@ProlificInvention]

Very interesting! Really like your test setup and ideas. Looking forward to a video on Pulse Detonation Engines you had mentioned in a response to a comment *Tech Ingredients*

[@WesternIronwoks]

oh man i would love to mess around with this tech for camping events.

[@JediNg135]

18:03 You can't explain that!

[@toine512fr]

I'm always impressed by the finish level of your builds!

[@TechIngredients]

Thanks!

[@timrichey9870]

You guys do such interesting experiments! and I love how you explain it in an easy to understand way

[@blomit]

What do you think about filling a slidding window with an array especially in the winter.

[@TechIngredients]

Not a bad idea.

[@pufthemajicdragon]

Terrible idea. You get 2-3% efficiency from these TECs. You get about 15% efficiency from a solar panel. A 100w monocrystaline solar panel is just under $100; you would need 351 TECs to make up the same surface area, each TEC running anywhere from $3-8, meaning an array the size of a solar panel would cost you as much as $2800 and only produce 20 watts of usable power (under optimum conditions). And then you'd have to pull it down and turn it around when the weather changed from hot outside/cool inside to cool outside / hot inside. For a little reference, in this experiment with boiling water and (presumably) cold snow runoff, there's a potential temperature delta of around 90 degrees c or so, which is about the limit of these peltier devices. You will NEVER approach that level of temperature differential between the inside of your house and the outside. The biggest temperature differential you'll see there will be about 30c (on a VERY cold Canadian winter day). Meaning that, at best, you'd get around 25% of your promised 3% efficiency hanging these in a window. So your $3000 array will generate you 6 watts of power - enough to charge a cell phone with. These are neat experiments that can teach you electrical principles in an entertaining way, but don't think of them as practical. On a slightly related note - there is recent science and research into combining thermoelectric power generation with solarelectric generation. High efficiency solar panels engineered with integrated high efficiency thermoelectric materials have been tested and can bump real world solar efficiencies over 40% with little cost increase over standard solar. But if this technology becomes viable, these panels would be mass-produced from the factory with the integrated solar/thermal p/n junctions - you wouldn't see a standard solar panel with little peltier coolers glued to the back.

[@ugetridofit]

@@pufthemajicdragon Your crazy. With your idea, you would need the sun out for it to work. If you epoxied these to a window, and say it was -10 deg. outside and 70 deg inside, it would generate all day long. Also, you would not have to "pull it down and turn it around when the weather changed" You an example of one of those people who dont pay attention in class.

[@peterfitzpatrick7032]

@@pufthemajicdragon ... the peltier generator does work in the dark too of course ... unlike the PV array... and if you don't cover the window (use a wall ) you ain't losing light into the house during the day... 😏

[@michaelwitt7984]

blomit I ran the number once to see how they would do at a replacement for insulation. So rather than used as a generator, use them as a TEC and eliminate your traditional HVAC unit. In the end, they are so inefficient that it was so much electricity to create the temperature differential that it was cheaper to have nearly no insulation and use a normal HVAC system. I would assume if used as generators, they aren’t going to yield energy above the increase that in “primary” HVAC energy inside the house than would have been needed if the generators were replaced with insulation.

[@leeutubegmail]

If the same kind of manufacturing evolution was made with TEC's as was done with computer chips would the efficiency theoretically rise with the increase in density of the semiconductor array inside? Is there some barrier to the maximum these could be physically efficient?

[@teslacoil4335]

There would eventually be a transfer limit, but the real problem is it would be very expensive to manufacture junctions that are very small

[@ancapftw9113]

there is a limit for the maximum theoretical efficiency of any engine that depends on temperature differences called the Carnot limit: (Temp1 - Temp2)/ (Temp1 + Temp2), measured in kelvin. IN this case, lets say that the cooling water was just above freezing (274k) and the hot water was boiling (373k). That would mean a maximum efficiency of 99/647 or .153. 15.3%

[@leeutubegmail]

@@ancapftw9113 wow that is incredibly helpful thank you!

[@ancapftw9113]

@@leeutubegmail no problem. I was thinking of building a solar thermal generator out of TECs or TEGs, so I memorized it.

[@teslacoil4335]

@@ancapftw9113 your right, i shouldve phrased it as "increasing the total junction counts eventually becomes non-linear due to the amount of additional energy required to pump the electrons and its linear heat generation per junction "

[@DanWatkinspapa]

You are so lucky to be doing the stuff I think (and more) about doing. Well done to you and thank you. All power to you! ;-)

[@TechIngredients]

Thanks!

[@RANDALLOLOGY]

That was really cool and ingenious. Thanks for sharing

[@ifell3]

Audacity, free and would be able to remove a lot of that noise from the waterfall. Plenty of KZbin tutorials on how to sample and remove a sound from your audio, within reason.

[@ShubhamBhushanCC]

If you look carefully in the background of most of their videos they use audacity. Noise reduction is good if the noise is relatively small compared to signal otherwise noise reduction just takes out the signal as well.

[@raykent3211]

He should have apologised for poor audio engineering. This wasn't the Niagara Falls. Bad choice of mic, bad placement or both.

[@ifell3]

@@raykent3211 he did hahahahaha

[@mckenziekeith7434]

Out of band noise can be filtered by frequency. That would help a bit. But random noise in the voice band cannot be removed. Only repetitive noise can be removed (e.g., a fan or propellor...)

[@thinkfirst6431]

Mr. Rogers meets Smokey the Bear: Smokey "The fire watch 20 miles away noticed your fire and sent me out to investigate. I see that you are boiling water in a pot do you mind if I ask what you are doing?" Mr. Rogers "I am conducting an experiment to show how one can take your refrigerator and make electricity to power a light in the woods" Smokey "Interesting so you are boiling your refrigerator which is powering the light? Mr. Rogers "Yes it is very inefficient at 3%, the cost to generate the power is very low the carbon foot print is about the same as running a gas generator without the noise." Smokey "We are in the woods everything you are standing on is rock or carbon in some form so I don't see that as much of a problem" Mr Rogers "Well we could potentially use solar during the day, that won't work a night so we are using a different method to generate the heat needed." Smokey "You do understand that the thermodynamics (big word for Smokey he secretly watches Mr. Rogers) of your operation only requires that the water boil at the partial pressure of the environment that you are in? You could do the same thing with larger wood with a smaller flame using more coals than visible fire which would extend your burn time with less feeding of the fire and replenishing the water in the pot. From my point of view you might also be less likely to burn down the forest. Remember only you can prevent forest fires." Mr. Rogers "Thanks Smokey I am a big fan could you please sign my fire bucket and shovel." Smokey "Sure no problem if you can sign the wing of the drone I built to do fire patrols" Fade to black.

[@niklar55]

Followed your suggestion to here. Thanks. All these new devices are amazing and didn't exist when I was camping with the scouts in the 1950's! What we had was 'glim' lamps (glow-dim) with leclanche cells, that usually died before the weekend camp finished. LED lighting has opened a whole new area of possibilities, which even 20 years ago would have been impossible. Now its becoming common place. I light my workshops with it, Far superior to the previous fluorescents. Again, a well balanced, and clearly presented lesson, and practical demonstration. .

[@robertschofield1560]

Let there be light And there was Wonderful informative video well thought out and presented Thank you for your valiant endeavours Grandsons loved it!

[@qpn6ph9q]

i said Peltier. Now i have an outrageous French accent

[@slipperysam1337]

Tech ingredients guy is a big brain alpha chad

[@2Humbi]

Yesterday i was wondering, when your next video would be uploaded and I am really happy to learn some new things about peltier elements today.

[@glenhillier5826]

Very impressive. Simple elegant design. Great video!

[@kalebmorrison9317]

How long to charge a Tesla battery with the energy generated from the camp fire.

[@TechIngredients]

100 hours

[@McGutschy2]

@@TechIngredients You are not kidding?

[@kalebmorrison9317]

Awesome! Thanks for the reply I know there's quite a few variables that would come into play but that ballpark is all I was looking for!

[@pufthemajicdragon]

@@McGutschy2 He's kidding ;) That system that he demo'd would generate about 7 watts of power (~2.3 watts max on the single node he demo'd in the lab * 3 similar blocks). A Tesla contains roughly 85kWh of energy storage - so to charge a Tesla from 0 to 100 would take you about 14,166 hours. Granted you literally *can't* drain a Tesla to 0 or charge it to 100 (these are restricted for battery lifetime efficiency) and you're only driving maybe 15 miles a day on average, you really only need to charge the Tesla about 6% at a time, or around 5100 watts, and that would only take you 728.5 hours. Someone check my math. (Side note - I don't think it's possible to build a TEG array out of these that could approach the 40a charging current that Teslas like.)

[@McGutschy2]

@@pufthemajicdragon much thanks for your great answer. As a german I missed sometimes details in English Videos. But, ok, this was obvios. ;-)

[@nicktohzyu]

intro music should be turned down, hard to hear the narration at 0:05

[@WayneTheSeine]

I built something very similar but actually opposite. I used two water blocks, one for intake to the hot side and one on the cold side. Two small 12v pumps, one to pull lake water to cool the hot side of the peltier and one to pull and circulate water on the cold side. The water on cold side went into a 3 gal or so ice chest type shiner box. The cooled water was spray headed into the ice chest via a spray bar, both giving the shiners oxygen as well as seriously cooling the water. As I recall I was able to get the water temp down in the high 30's. It was tied into a digital thermostat that would shut the system off ....keeping the cooler temp in the mid 60's. The whole affair was powered by a 12v gel battery. What was really neat, you could reverse it and warm the water if you were ice fishing...to keep your bait from freezing. I had the cold side lines insulated with camel back hose insulation. As I recall it would operate for around 6 hours at 90+ degrees F ambient temperature on a 30ah battery. Note: I was able to increase the efficiency significantly by lapping the water blocks to a mirrored finish. The manufacturing process, stamping the cover of the water blocks, slightly deforms the surface. I used diamond heat sink paste as well....which also made a significant difference. Very neat project....love your channel.

[@_lolucoca_9735]

Huh, KZbin didn't show me this video in my subscription box like they usually do so I found out about this just now. Amazing video!

[@TechIngredients]

Thanks!

[@sportz5740]

Great cinematic fade to black by demonstrating the technology!

[@3dmaker699]

I like this guys videos. This was great. Been playing around with these devices myself. You answered all my questions in one hit, thank you. On the drone issue, I've been building a solid state battery to cover a very long trip and I need to know about the best long distance radio control methods.

[@TechIngredients]

Sure!

[@3dmaker699]

@@TechIngredients Sure what ?

[@AscendtionArc]

Thanks for this video. I always found those devices fascinating.

[@deezynutz4742]

Your videos always make my day and give me something to think about when I have nothing better to do. Thank you!

[@randomtux1234]

T I tubes are the most comprehensively interestingly explained demonstrations, which speak to the layperson and professional alike so well done, I wish we had teachers like this back in school who pass on the knowledge , the whole knowledge and nothing but the knowledge

[@AwakenER]

My Grandfather was a landscaper. At the end of a day, he would bring home yard clippings from his day and add them to his compost pile. A compost pile that would often create steam on cold mornings. Going in and flipping the pile on occasion you could feel quite a bit of heat coming off the decaying matter. I would imagine an array could be designed within a compost pile for a similar effect. Perhaps provide a horse barn with power and lighting in rural areas. I see a lot of potentials.

[@robertgeorgewerner]

You guys are such great teachers. I always learn so much. More importantly, I live how you are all having a great time both in front of and behind the cameras. I want to be a dad like you when my son and I grow up. 😋

[@samwhitehead8945]

Great video, thank you! You are at an ideal voltage for testing with the input of a MPPT solar charge controller to charge a battery. It should enable you to operate near the peak of the efficiency and power curves. Several years ago I started a similar project with 20 of the same modules and a Victron MPPT. However, I wanted to try and cool it with forced air radiators. I ran out of time and dedication and still have the project half built. With the cold water supply you have in the video, a small water turbine would probably generate considerably more power than a large seebeck generator. I understand you could add a low power pump and operate lakeside, but you still have the need for cold water which I find a little limiting. I realise it’s not a finished product but it’s a great project all the same.

[@wyldfyre32286]

I've been batting this idea around since your first video on these devices. Thank You! I'm always looking for innovative ways to get power "off-grid". This is genius in its simplicity coupled with its output.

[@ABaumstumpf]

Uhm.. why exactly do you want the worst possible ideas?

[@pj7362]

Great minds think alike. Haha I have purchased the same basic devices and have been anxious to implement my ideas. Mainly lighting and cooling . Always a pleasure to see your mind at work.

[@denisohbrien]

Sound during the time lapse. I watch a few boat building channels, theyn mostly do time lapses but keep the audio at real time. yes it isnt in sync, but it sure is nicer to listen too! .. loved the demo, if your out wild camping, your likely near a burn(stream/river whatever) and youll certainly have a fire going.

[@Ides385]

Another awesome video as always. Thank you.

[@gabrielpapasideropavan]

This channel never ceases to amaze me with the quality of it's videos.

[@jakeeames725]

I usually never comment and here I am leaving 3 of them in one vid... anyways wanted to say thank you for your time sir very informative and I’m very happy I stumbled across your channel this morning. One new subscriber!

[@judd_s5643]

1) To further improve the efficiency you may want to meter a small portion of the heated water back into the steel vessel at the evaporation rate. 2) Placing the heating vessel on a rocket stove would maximize the energy stored in the biomass. 3) To really kick it up a notch, use the energy created to power an auger and small fan to have a temperature controlled pellet stove. Lots of possibilities.

[@skuzlebut82]

I've got a small circuit I designed that uses a peltier. You use your body heat on one side and ambient air on the other and you get 5 volts out of the circuit. Obviously very low current but it can trickle charge a pair of Maxwell super caps and then you can use that to charge a phone starting with nothing but your body heat.

[@ABaumstumpf]

why would you want that? If you want to charge your phone with your own body-power, why not a simple handcrank? Orders of magnitude more efficient.

[@skuzlebut82]

@@ABaumstumpf Not necessarily. You're always going to be emitting body heat, so it's essentially passive electricity generation, requiring no extra effort. A hand crank, you've got to actively do work.

[@anthonyj777]

Very cool :) Great video as always.

[@JoshuaWoehlkeMkII]

An even better way to get the bubbles out of small pours of silicone like that is fill that 10ml syringe to about 5ml, squeeze all the air out, put a cap on it, then pull the plunger back to put the contents under vacuum. You can lightly tap it on the edge of a table while you do this if you want it to degas quicker. There are printable designs on thingiverse that will hold those 10ml syringe plungers back for degassing like this. Neat trick if what you're doing is too small to warrant a degassing chamber, and it goes way faster too since you can pull stronger vacuum in the syringe usually.

[@YouennF]

There is a portable campstove built around this principle. A part of the energy produced is used for fans increasing the efficiency of the fire and also cools the cool side of the peltier modules. The rest of the electricity is available for a led light and 5V charging plugs. I forget the name of this device (it emerged on kickstarter several years ago and was revised since) but I'm sure others will have it.

[@migalito1955]

First, very nice presentation and good depth is associated with all your projects and I appreciated each of your videos I have watched. I have mostly focused on your project involving sound and the other project involving drones where I found each fascinating, and I do plan on watching videos related to other topics. As a retired pure mathematician your projects allow me to kind of see the applied side of mathematics implemented in an interesting and useful product such as the DML speakers which were easily related to the wave equation that often is examined in a class related to partial differential equations. I don't exactly know how to say this other than, its really enjoyable for me to see abstractions ultimately realized as cool pieces of equipment and I am thankful that your channel provides this. Now for a bit of a question. I know that I only know well my little narrow piece of mathematics and it took me years to get there, so I can't help wonder what educational and professional background you have that has allowed you to be conversent and productive in multiple specialized areas that include electronics and mechanics to name but a few. If I had to take a guess I would say at least a masters in mechanical engineering with a wide range of projects over many years. If you could satisfy my curiousity with a brief history I would certainly appreciate that, otherwise, best wishes and I hope your channel inspires our youth to pursue STEM related opportunities.

[@7rICk]

Thank you for making all these great videos!

[@tnekkc]

We built a super insulated solar home in 1982 with radiant heat and 600 Amp service. The boiler we made had hot water heater elements. The water pipes were a 1-1/4" impedance matched system with 1/5th HP circulation pump. We also had coil to an outdoor fire. It was not intuitive how much more power small wood fire can produce than the whole 600 Amp service.

[@charlesmantla90]

i love this channel ! Summer Projects at the cabin

[@RobotUnderground]

This is great. I'd been wondering about this. Here in Arizona, we have plenty of heat in the Summer. I wanted to use geo thermal cooled water for the cold side. For a more steady heat source, maybe just like you did, use water as the medium on the hot side. So like a thermal solar setup with just black iron pipes on a roof heating the water since you know it won't go over 220F-ish. Then around 50F on the cool side. It'd have to be big enough to generate power for the pumps and such. Then what's left over would charge kF caps or batteries. Thank you. Keep up the great videos!

[@ABaumstumpf]

That would be a ginormous contraption for little to no practical gains. us normal solar panels - more versatile, more efficient, cheaper. What he has shown is just a fun little project with no practical use.

[@robgreenwood3444]

Love your work. Keep it up!

[@TheExplosiveGuy]

I wish I had thought of this back when this came out, when I saw it the first time, but ohh well, here goes; To keep the boiling water from running out, put a small needle valve and a drip line that comes off the hot side of the heatsink (so you're not adding cold water, to increase thermal efficiency, though I guess the rate it's added is too miniscule to matter) that is set to add the same amount of water into the pot that gets boiled off. At that point all you have to do is add fuel to the fire.

[@TechIngredients]

It's not a bad idea. But, keep in mind that the highest electrical output will occur when the water that passes through the heatsink is as cold as possible. So, the highest flow rate that can be accommodated is best. Therefore, even the "hotside" of the heatsink will only be a few degrees above the cold water available.

[@mikewinkker4897]

Having a cabin in the woods I am fascinated by this and his applying theory to practical applications .im giddy about trying this but I need a kit to assemble with instructions or I'd never finish it because my lack of intense focus of the build.

[@ronwhittaker6317]

30 sec's in love it already. front to back worth every minute thank you, good teacher.

[@TechIngredients]

Thanks!

[@egustafson]

I've played around with these plates they're a lot of fun!

[@SimpleElectronics]

Very interesting project, and nearly "free" energy - wince you wouldn't really be able to harness the energy from the wood without a boiler/turbine set-up or the stream without another turbine, this is actually quite smart. Love the videos, keep it up!

[@SPOKTALK]

I discovered these years ago and thought of using them on the back side of solar panels, cooling the cells; increasing efficiency and power, while generating their own power with the exact same water cooling units, and combining each output to form the Super Solar Peltier Panel ... but like you mention, there should be temp control. I was even thinking to add a magnification lens to really heat up the cells while increasing luminosity/power, for the not so hot/sunny days of course;) but its a good idea considering the combined longevity of the cells and output in power.

[@christopherbenetatos5123]

Always great content 👍