I love the first part of the video - it reminds me of things we did in engineering lab when I was in college. Engineers and technical people have the best sense of humor!

This video was ONE IMPRESSIVE THING ... Loved it Sir. Thank you for all details and demo

找了好久没找到像这个这么详细介绍的，非常适合初学，感激不尽！谢谢啦！

I love your channel, I was looking for an answered online if I can control the temperature of the element by controlling IN - V/I and you covered it in the first 20sek of the video :-) Thank you very much!

This is perfect. So much info so quick and to the point.

They are fun to mess with. I built one that was mounted on a water block with a small water pump. I was able to get it much more efficient by highly polishing the block and using diamond paste.

*+Julian Ilett:* Nice video Julian! To be fair I think you should say that a TEC needs to dissipate *two* sources of heat: 1) the heat being moved from the cool side to the hot side as well as 2) the self generated heat of the PN junctions. Also to be fair, TEC's only run about 10-15% efficient. I think you should say that TEC cooler performance is a function of ambient temperature (the warmer they get, the less efficiently they operate), hot side and cold side heatsink performance (as you demonstrated, better heat sinks make them work better), the thermal load, the physical geometry and the electrical parameters. Sorry for my nit-picking it all just goes to prove TANSTAAFL = There Ain't No Such Thing As A Free Lunch ... LOL thanks for a great video

A very definitive example of a more real process, much more efficient, but more so concept of what it might really be or become, much more efficient. Peltier modules make 1.5 volts driven by their own heat, heat uses energy. Looks like it can be reconfigured to use its own volt in some way. Great job Julien, shall keep an eye on you.

That is so good, i changed my element in my 5V USB coffee heater to one of those 12V ones and ran it out of a 5V 3A wall socket. Now i can keep my coffee warm and even reheat it again if i forget to tern it on :D

great video as always. i made the exact same thing for a coke'n' sandwich cooler from a scrap heatsink and a ebay peltier 10 years ago, but buying saves time, so well done banggood, bit expensive but its heavy to ship.

That robot kit.. At this pace, it's going to be an easter egg for this channel :D

Love the way you left the label on the glasses. Maybe from the pound shop :-)

Hmmm water and electricity - shocking But seriously you are one of the more informative people on KZread - delivered with your own special brand of humour - priceless. I had forgotten how funny this video was, came back for a rewatch after seeing thought emporiums cloud chamber today. Keep up the good work Julian.

I just ordered 4 of the 15A ones. My turn to have fun!

Very Nicely Explained. Knowledgeable and entertaining! 😀

Very good instructions, for somebody that want to play with them, and want to get into it, thanks +1

You got one cool fan, and two huge fans quite hot. Lucky you !

Very detailed info. Keep up the good work.

"stick in in your mouth then connect they battery to it" -Julian Llett 2016

@johnrabideau5010

6 жыл бұрын

Susan Donovan w

@Snowcrash777

5 жыл бұрын

Fucking Priceless! I was laughing so hard I had to give you your props! Peace

@indiantechnic6128

5 жыл бұрын

So beautiful

@michaelnotgivingyoumylastn3231

5 жыл бұрын

hahaha you forgot the following "mmmm mmmhmmmm"

@nilaksh007

5 жыл бұрын

Actually mouth is a great sensor. Once I build a small dynamo and used to check whether it was working or not by sticking wires into my mouth (I didn't had a multimeter). It can detect very small voltages

Also, now that I think about it, you could run the peltier at low power to use it as a dehumidifier. Maybe down to just a few degrees C, or ~40 F. That way, you wouldn't have to cycle the element, which reduces thermal stress.

Tnx a lot For ur valuable information 😊. I didnt find the meaning of TEC1-12705. Not only that, u give a lot of information. Tnk u again☺☺

Very interesting video. Thank you Julian!

I went to ebay and bought one for myself after watching your video. I don't know what to do with it yet but I want one! :D

Good explanation Good camera

ARRGH!! Had forgotten about the model build and then you only removed two pieces! You tease Julian :P

You drag your words out so long that I actually fell asleep halfway through the video... and I'm not joking, I dozed off and woke back up and you still were rambling about the same thing.

Probably a word of warning, if Julian doesn't mention it. Don't put the peltiers rated voltage across it while you have it in your mouth. You're going to end up with one burnt lip and one stuck frozen to the peltier, until you disconnect the power :P

10:27 What about having the lower part of the heat sink in a small, shallow, tray of water? (At least for testing, to reduce the possibility of damage...)

"Lets watch this ice melt" - Classic!

@JulianIlett

7 жыл бұрын

Yes, in hindsight....

@GadgetUK164

7 жыл бұрын

Haha, yes =D

@dazzjh40

7 жыл бұрын

David T. Proof of global warming so might say

@felixmoch117

7 жыл бұрын

Right after "This IS a proper job!" ^^

@MrBrymstond

7 жыл бұрын

They have a 15A @12V I wonder if this has enough to cool a good size refrigerator or maybe 2 of these on each side of the freezer area... Years ago I had a idea to cool this processor enough so it wouldn't throttle and overheat and maybe use a 1A with a dimmer switch to bring the current up or down, but I was worried about water, but the heat coming of this processor should dissipate the moisture.2Pcs TEC1-12715 Heatsink Thermoelectric Cooler Peltier Plate Module Description: Solid state, vibration free, noise-free Simple to install and operate The hot surface need to be good heat sink Specification: Product name: thermoelectric cooler plate module Model: TEC1-12715 Color: white Couples: 127 Voltage: 12V Umax: 15.4V Imax: 15A Max power consumption: 231W Tmax: 70°C Qcmax △T=0(W): 137W Size: 40 x 40 x 3.3mm Weight: 100g(2pcs)Package included:2 x TEC1-12715 module

I was just playing with my TEC1-12715 When I measured the resistance, So I could calculate what voltage I needed to get it to 15 amps. I noticed its resistance changes with temperature.

A little warning, going to switch to front face now.. Sees sticker on glasses... In shock

Cool New Glasses,:) but seriously thanks for the video.. Not such an expensive device from Banggood at that.Good Work..

Ah yes, watching ice melt, used to be one of my favorite things to do in early spring here in the Dakota's, where weather runs the gammat from over 100 F in the summer to below -40 in the winter, the sping on the farm used to be filled with hitting the barnyard with hoes and shovels to drain off the melting snow and ice so the smelly earth could dry and be used once again as a gathering place for the milk cows before the milking (always by hand, who could afford milking machines?) and after.

I was at the LLNL (Lawrence Livermore Nuclear Laboratory) once with a Physicist friend and he asked me if I wanted to go to an electronics swap meet down in silicon valley. So, we met up at 5 am and hit the sale. All kinds of high end stuff laying out on tables selling for pennies on the dollars from companies that started and went bust. I saw a 15 stage peltier laying on a table that I should have bought. He told me that it would actually produce frozen nitrogen out of the air when it was running. The base unit was about 8" long and 5 " wide. The next unit was smaller and each successive one smaller still. The final unit was about 1" square. All sandwiched together. That would have been cool.

@Bob_Lob_Law

6 жыл бұрын

Mike Rhodes 15 stages? Holy shit, that has to be so horrifically inefficient I don't even want to think about it. But sounds really cool

i can image that being used in watercooled 3d printer, one side keep the inside warm and the cold side keep the hot end cool

this vid is old, but tec just means ThermoElectricCooler the C in TEC doesnt stand for the size AND 127 neither stands for the couples. it stands for 12 Volts and 7 couples. At least one parameter is right in this diagram: 06 actually stands for the max current. Also, connecting the peltier to electricity without cooling the hot-side heavily reduces its lifespan!

@phil955i

3 жыл бұрын

Incorrect. The 127 refers to the number of couples. Different TECs have a maximum voltage rating, it's not always 12 volts.

You should try getting less surface tension by coating the heatsink with some kind of teflon based spray. It would make it harder for the water droplets to form and drop quicker. (Although this is a horribly inefficient way to dehumidify anything, but would be fun)

I bought one fully assembled from Banggood and hooked it up to my power supplies. The peltier is only using 3 Amps at 12v from my bench power supply. Cold side only gets about 51F and hot side 73F with room temperature at 72F. I wonder if they put a different model peltier in it. Tried another power supply and it behaved the same way. Or maybe assembled wrong? It came ready to go. Anyone have any ideas on why it is not taking 6 Amps and not cooling more quickly and getting colder. No ice buildup at all. Cold to the touch. Hot side pipes and heatsink are not warm at all. Seems like even at 12v 3A it should be colder/hotter than this.

@brynparrott7361

2 жыл бұрын

If you buy stuff from China you get inconsistent quality. Live with it.!

Handsome gentelman! Thanks for your videos, Sir.

Could you run the larger unit straight off your solar.. sans lead acid batterys?

What would happen if you cooled one side and heated the other with a meter in place of the battery?

"So the best way to feel what this thing does, is to stick it in your mouth" never heard that excuse before XD

thankyou for your time

I wonder if you start drawing the power from the peltier as soon as u stop powering it will give u a decent amount of power back to make up for the inefficiency? Maybe make the cold side stay cold too?

The most efficient method to use on the hot side is a liquid temperature controlled heatsink. The hot side needs to be at or below 70 degrees Fahrenheit. That makes the cold side 30 degrees or colder Fahrenheit hopefully. BangGood sells the water cooled heatsinks.

Those "12v" Peltier elements can actually go up to about 15 volts, which is very useful for some real cooling/heating power.

@Loundre3

6 жыл бұрын

Yet, with bigger power come greater issues with the peltiers generated temperature difference, if the heatsink is not up to the task.

@ImmortalShiro

5 жыл бұрын

Naahh... Better to upgrade your heat sinks than increase your voltage.

Could you use a Peltier device in a Fanless mini PC unit, between the CPU & the Aluminium case, with a control circuit? You wouldn't need to cool it like in a fridge use, but just enough to keep the CPU from cooking ?.

so this could keep my tea warm in my mouth ?

i Have the same refrigerant unit from banggood also. I have hooked everything up to 12V and have managed to get frost on the cold side. looking at putting it into a waeco portable fridge.

@solarandgardeningstuffandd8168

5 жыл бұрын

am going to try a larger heat sink on the cool side so that there is more surface area of cold so that when a fan circulates around it there is more cold are to work with if that makes sense.

Great video, how long would a 100amh battery last using the larger heatsync model

Those heat pipe type heat sinks work best with the mating face pointing downward as the medium inside the heat pipes vapourises then condenses on the pipe walls, but then requires gravity to return the condensed liquid to the bottom again. Enjoyed the vid though, I have a project that looks very similar to that ;-)

I was looking for a self powered wood stove fan set-up, Just works in reverse to power fans.

I wonder how to calculate the BTU out of this 60w module?????

You should experiment with the Peltier as a power source, I built a self powered wood stove fan ;)

@gerardvaughan1847

5 жыл бұрын

Nice one - xept my stove needs slowing down ! I made a cool box for food - a sort of fridge, but no Ice box, yet. It uses Two parallel strings of 4 in series, and a dish of water cooling the hot sides via a thick flat Aluminium plate, and two Pc fans in series blowing on the water. It saves my world in that hot weather here in Bulgaria. Goes nicely on 24v (from regulated Solar panel). The regulator makes litres of hot water :)

@gerardvaughan1847

5 жыл бұрын

Come to think of it, I did what you did, too. Back in 2010, I was skint and had to give up gas bottle cooking, and made a forced draft wood burner the size of a Gaz Camping stove. Had "smoked" Everything ! I always say, "It's an I'll wind INDEED, +(that blows no good at all !)

Really enjoyed your video. Thank you. I wonder if you have any thoughts on an idea I'm toying with: a motorcycle top-box cooler. I don't think there would be any need for a fan, as the motorcycle travels forward through air cooling the Peltier element/side of the top-box (just like the engine). Metal-cased top-boxes are readily available, so could one side of the Peltier pump be fastened to the inside of the top-box (perhaps a few external fins for good measure, then a polystyrene layer insulating the box, then a thin, galvanised sheet plate inner, to take the heat from inside the box to the Peltier element, again, perhaps a few fins to assist. I am hoping to cool six bottles of beer, a packet of bacon, a packet of sausages, a small carton of milk and a small margerine for camping. I have 12v available on my bike and like I said; all the cooling you could want. Will it work/does this make sense? Thanks.

I bought a tec 12726 to play with from banggood, it is suppose to get down to -30 deg C. "mind you mt bench psu only does 10 A max" I have seen them heated to make a makeshift phone charger whilst camping

Can you do a video showing how to use body heat on that TEG, run through a boost converter to light a led or maybe charge a cell phone??

Sir we have the same heatsinks and 12706 PILTIER and im using power supply which is 15A but cant turn into ice just like yours

Thx for the nice video, sir, please measure the amp consumption, I've bought 3 of those from banggood also the 8 Amp one ( TEC1-12708 ) and all never reach 50% of its rated amps !!!

I have an inductor from a UPS with only 2 legs (1 wire). I can't seem to find any Joule thief designs that use this type of inductor. Can I use a 2 leg inductor with a Joule Thief?

useful demonstration

Can you use the electricity the Peltier device creates from thermal difference to power itself to make a dehumidifier?

I actually tried to build a dehumidifier with an almost identical setup. I was as not very successful though. I got the water to collect on the cold heatsink but not get it to drip. With properly sized heatsinks it should stay just above freezing point. BTW for a dehumidifier it should be more efficient to direct the cold air from the cold heatsink into the hot heatsink.

thank you my man this is very informative as i have just takin apart my old projector and have come across these parts and im wandering what to do with them ,,try and use them in some mad build like i see on youtube or sell the parts but postage comes into the process, is it worth it,,,cheers all the best from scotland

I've been planning on making a diffusion cloud chamber and the main components are Peltier elements - if memory serves me well I'd need to reach around -30/ -40C for the chamber to work and I heard that to achieve those temperatures I'd need to stack two Peltier elements on top of each other, with the element on top running at a lower current than the bottom element.

@JulianIlett

7 жыл бұрын

There are some multi-element Peltiers on eBay. They're stacked and look like pyramids - the colder elements are smaller. TEC4-24603 Heatsink Thermoelectric Cooler Peltier Cooling Plate Four layers #SoreKara www.ebay.com/itm/TEC4-24603-Heatsink-Thermoelectric-Cooler-Peltier-Cooling-Plate-Four-layers-/262174876788

@rapturas

7 жыл бұрын

+Julian Ilett Awesome, thanks!

Fresh water out of Air really cool great survival item. Id like to see how much water it could produce in an hour running off a wind turbine.

on hot side the heat is transferred from copper tube to the heat sink, my question is pump is not required to flow liquid

Hi Julian, Could you make a video showing power generated by the Peltier unit using a temperature differential? How about also using multiple units stacked for a greater effect?

@JulianIlett

7 жыл бұрын

www.ebay.com/itm/TEC1-SP1848-27145-TEC-Thermoelectric-Heatsink-Cooler-Peltier-Plate-Module-/311534560155 and www.ebay.com/itm/TEC4-24603-Heatsink-Thermoelectric-Cooler-Peltier-Cooling-Plate-Four-layers-/262174876788

have you tried using one of these to cool a led? i have a cree xhp70 led for my bike lights but has a round 40mm wide case but cant find one to fit inside it. was then going to fill the back of it with mineral oil and bolt a heat sink to the top off it with the bolts going inside to coll the oil as its non conductive.

This is interesting to quickly get some amount of water from the air with not much power. Demineralized but still safe.

I'm thinking this would be ideal to combine with beer.

Great Video - very informative. Please tell us where to get the POWER SUPPLY you show 9 minutes into video. Looks simple and handy. -Chris

It would be interesting to see if it could be converted to a Seebeck Generator, to generate electrical power. All that's needed is to change the plate type to one optimised for power generation, and fit it in reverse.

You made it sound like dehumidifiers use peltiers. Also, has anyone tried stacking them?

@21:37 "Let's watch this ice melt." Next week's show will be watching grass grow.

In next week’s episode we’ll watch paint dry and then sometime in April a special on how fast grass grows. Thank you for a really enjoyable video as usual - I’m using the Peltier Element to make a “self-powered” wood burner fan blower doh-da...and generally amuse myself.

Rightly or wrongly I always thought the small fan was fitted to blow the cold air emitting from the cold side ? You mentioned it didn’t get as cold after fitting the fan or did I miss something ?

I know a guy who was playing with one of these, and picked it up on the hot side, he branded himself with the letters RS.

So if you have a natural source of heat. Which side would you heat? (the cold side or the hot side?) And then if you attached a heat sink to the other side opposite to the side that has the natural source of heat with a heat sink would it then produce ice or cold? Thanks

If you wanted to make a dehumidifier, could you... run air from the hot side (after being heated up) over to the cold side where it would then cause the moisture to condense?

@brynparrott7361

2 жыл бұрын

Yup, thats the idea

Luckily my tape water is very close to my air cooler. And I was thinking to attach a hot side of peltier to aluminum tank and connect it with tape without motor assuming hot water will automatically move toward my house water tank. I can use motor but want to understand if I can use same tape point for inlet and outlet of motor will it be useful?for 3 peltier of 6Amp which power supply unit i can use?can't use battery so thinking of some kind of smps. Kindly guide me. Regards, Ashish kumar

Great video.i ordered a peltier tec but it didn't come with the gasket/mount. Any idea on how to find one please? Thanks!

wonderful...thank you

if one side have -15*C and another side +22*C then It produces a electricity? And if this electric power used in the second Peltier Plate how much this hot there (warmer side)?

Cool Video Literally Julian. LOL. Keep up the great work. Nick.

Great Video Thank you very much

using a 100w peltier plate, and a nice large CPU cooler on the hot side, and the stock intel cooler on the cold side, i was able to cover the intel cooler with about 1cm of frosty ice, its qutie impressive. they all operate at a delta temperature, not all peltier plates are created equal, so one 100w plate might have a 80*C delta, and another might have a 40*C delta.

Hello from the US! I enjoy your videos as I'm trying to learn how to make a Joule Thief. Could you do a video about thermoelectric power generation using 1 or more Peltier devices? You just need a big temperature difference, people often put a big heat sink on the cool side and heat the hot side with a candle. But I'm wondering if there is enough voltage and current to light an LED, with or without a step-up booster. Thanks!

In general dehumidifiers bind the element to a large thermally conductive plate, which it then keeps just above freezing. A fan then blows room temperature air across it slowly. Water drips off the plate into the water tank. Dropping the element below zero just freezes the water it collects, which is a waste of energy.

Any change on making it so that the cold can be used to cool off such as an air conditioner ? (withouth geting it to freeze ?).

The total current - two 12 v fans, start-up & running, the total amperage is less than 1 amp. Can we use a power supply about 2 amps output or even smaller to save consumption?

can i connect two peltier TEC1-12706 on both side of a water block and run water through it and get chilled water, actually i wanted to bring the temp of my 15 gallon tank below to 6degree celcius. I have tried with one peltier but the water coming out was not as chilled.

The temperature differential across one device is limited. You can make it even colder by stacking them.

please do a electricity generation project using this TEC module!

Hey there ! Can you tell me how much power does it take to say take 10w heat from cold to hot side? Lets say the outer heat sink is 10c hotter than the cold side

Thanks for the video, great intro demo to heat sync, etc. Tell the puppet i said these videos are great and it keeps your hand warm, soooo stop complaining ;)

I love a nice heatsink :)

They have a 15A @12V I wonder if this has enough to cool a good size refrigerator or maybe 2 of these on each side of the freezer area... Years ago I had a idea to cool this processor enough so it wouldn't throttle and overheat and maybe use a 1A with a dimmer switch to bring the current up or down, but I was worried about water, but the heat coming of this processor should dissipate the moisture. 2Pcs TEC1-12715 Heatsink Thermoelectric Cooler Peltier Plate ModuleDescription:Solid state, vibration free, noise-free Simple to install and operate The hot surface need to be good heat sinkSpecification:Product name: thermoelectric cooler plate module Model: TEC1-12715 Color: white Couples: 127 Voltage: 12V Umax: 15.4V Imax: 15A Max power consumption: 231W Tmax: 70°C Qcmax △T=0(W): 137W Size: 40 x 40 x 3.3mm Weight: 100g(2pcs)Package included:2 x TEC1-12715 module

how long does it take to reach to its maximum heating temperature?

Can anyone tell me the temperature of air coming out of the sink on cold side when fan is placed over it?