I also suggest applying pressure to the peltier cooler, in my many experiments I have found that clamping the cooler to the heatsink increases thermal transfer greatly. Also the maximum temperature differential is very different to actual energy pumped, the higher power coolers will maintain a smaller temperature delta but will pump a lot more energy than the lower power ones.

@peggenlejoncar9529

18 күн бұрын

And put hot side up and blow air against it.

We need more of your diy projects 😊😊

I actually love watching your videos. I hope this explanation doesn't offend you. This works as a refrigerator in a closed container. If you are trying to distribute the cold to another area with air (air conditioning) there will never be ice on the cold side heatsink because the ambient temp will overcome 90% of the cooling and, in general, defeat any chance that the cold side will get more than 10°C below ambient. The stronger the fan, the less temperature drops. This is why the higher powered devices are used. Not to see how cold the cold side CAN get. They may not be as cold but they will "recharge" (actually remove heat) from the cold side faster. Your readings would be taken at the hot side to see how much heat you need to remove from that side. The chip cold side reading will be about about 20 - 50°C lower than ambient and up to 70°C lower than the hot side. The reading of the air you blow across the cold side heatsink will be much, much higher than the chip cold side to the point of only a 2 or 3°C drop from room temperature (ambient). This is evident even when measuring air temp just 3 or 4cm from the cold side heatsink. The more powerful devices are used to overcome the powerful ability that normal air has to remove all the work (energy) done chilling (removing heat) from the peltier and spreading it all over the place. That's why a low powered device will hold temperature in an extremely well insulated, closed box but wont work as well if you try to distribute the "cold" into the same area you're working in. A high powered unit, maybe even a 24v model will work much better in those conditions. If you want, I can send you some real peltiers for you to run more tests on from CUI here in the USA

as always, I appreciate the due diligence & listening to the community... the results look quite definitive! 👍 🤓👉I'd love to see you turn the best module into a portable/mini "air conditioner" for the summer heat! 🤔perhaps make it reversible so it can also work as a heater to soothe the winter chill! 👋cheers & looking forward to your next project!

@paulpease1788

2 күн бұрын

Can't be done with current technology. These can keep a small enclosed and insulated container a low temperature but blow some air across that cold plate (cold heatsink) and the -10C goes up 35° instantly or somewhere barely under room temperature. The higher powered devices will draw more and less power as needed (power is in watts but if you hold a constant voltage the amps will increase or decrease which increases or decreases total watts) based on the amount of additional cooling needed. That means more power/energy/heat to remove from the hot side to get that delta in temps

omg thank you! saved me some time, I love these type of videos, keep it up!

Impresssive, thank you for all your effor!. I will consider the results for my next projects. At the moment I build some "fermentation boxes" for sourdough for friends and family, so I use the hot side of the elements to heat up a box. I improved efficiency using the results of your fist video already.

Excellent video and great tests! Thanks! 👍

Thank you 😊 now I know how to make it!!

Thank you, very useful test.

thank you so much my friend, great job well done

@R.O.E.

12 күн бұрын

im in order build mini water cooler peltier fan PLUS mini refigerator (dunno what im thinking but i like chill ambience on my desk and take one shot soft drink)😂 , in my case i just found -9 degrees celcius with 3x3cm peltier reaching so fast and only using usb c PD charging decoy port. its about 25 watt in smartphone adapter with volt amp meter (6v-7v) fast cooling and stable. and in another case, just found chinese cooling fan for smartphone 2,3cm peltier can reach -3 degrees celcius, 2,5cm peltier can reach -5 degrees C. stable. (edited : 2,3cm = -5 degrees, 2,5cm = -3 degrees) *i use proper thermo gun not that fake lcd indicators thats insane the voltage, fan and heatsink not heavy stuff only 5v - 1-2Amp

@R.O.E.

12 күн бұрын

you can try more affordable peltier for sure and save energy more for the earth lol😁 nice to meet you. enjoy

Higher amper TEC is better but needs much better cooling on the hot side. Test with water-cooling AIO next time

I was just watching the older cooling videos yesterday and tried the same experiment you did here, but with just the 12706. It might not be the most efficient, but with a 6-heatpipe cooler, it's amazing what it can do. I ran it at about 10-11 volts and got down to -10 on my cold-side heatsink. I didn't apply as much thermal paste as you did, so I did have some thermal limiting at 11 volts.

Heat pipes works in any direction, but they tend to work better much better "right" side up, that can have a huge effect on how much heat they can transport. Also, the heat that needs to be dissipated is the power consumption, plus the pumped heat, even if the pumped heat isn't that much, it adds to the total load. But you've shown very well that adding more energy when heat dissipation is the main limiting factor won't result in lower temperature, and also that something designed for higher power doesn't have to be more efficient when there's a limiting factor stopping it for working in the range it's intended for. 3 amp modules are probably a good choice for most hobby projects, unless both the heat dissipation is good enough for higher power, and also higher power per module actually is needed, assuming a large temperature difference is needed, and not necessarily much heat flow at modest temperature difference.

Thanks Pal! You will need to make at least 20+ videos to satisfy the defenders of TEC-12706! Just say that TEC-12706 is the better module! 🤟🏻😂

As usual a very good quality presentation which helped a lot. I was expecting the more powerful module to win the race but...lo and behold...the underdog. How about testing solar panels efficiency? Or how about greenhouse/hothouse efficiency? (plastic film versus glass or polycarbonate etc)

Thank you sir! Your video is very helpful but can you make a graph about temp-time(from 0m-60m) in next video

Agree 100%, especially because my applications are all for outdoor solar powered electronics.....the ability of the 03 modules to operate efficiently down at 9vDC gives me a little more wiggle room for parasitic current draws like cooling things getting cooked in the sun. As a personal project, i might have to try a similar concept on a game camera or two since they are notoriously easy to kill with only moderate heat or sun exposure. Many thanks for posting this comparison.

Do you try TEC2-19006? Can you tell us something about that? Thank you, you are great!

I tec cooled my canon t3i dslr for astro imaging. I opened the camera and packed thermal transfer pads to get the sensor heat out the back of the camera. I did not want to cut up the camera, so there is plastic thermal resistance. By far my best results are using two 12706 (60W) stacked (gives more thermal delta, but less cooling throughput). And only running them both at 3.5v, it lowered the sensor from 95F to 55F, and it makes a big difference in dark noise.

Nice video. I guess your "cold load" is far too small yet, so the lower power peltier gets too much of a advantage. A heatsink with cooler in the cold side, should improve the performance of higher power models and give a much better result. Just a guess through. Great work again.

Y puedes poner celulas de peltier unas encima de otras y sumas el salto termico, ademas puedes aislar termicamente la zona caliente de la fria y eso aumenta el salto termico, pues puedes usar aislante del que se usa en climatizacion, o algo parecido. Pero tienes que tomar mas precauciones con la alimentacion de las celulas de peltier usando alimentacion de corriente constante.

Would you also consider testing the SP1848 27145? I can't see if it's supposed to be a generator or a cooler, but I'd like to see how well it performs in cooling against the TEC127XX units you have. Even if you don't test generation, just pumping, that would still be interesting to see.

Hi Mr. Sorin, I love this follow up video regarding Peltier Modules. Ijust have a few questions: 1. with the experiments, the 12703 is the most efficient of the the 3 tested? 2. will the PM 12703 run efficiently at 9 Volts? whether I use 1 or 2 pcs of the module? 3 wiil the 12703 PM work on an air cooler with the cold side dipped in the water reservoir (with a heat sink attached) while the hot side is facing up with a cooling fan attached? 4. the #3 question's purpose is to cool down the water in the air cooler. 5. is the #4 question not practical for experiment or for long term use? Just asking rather than using an air conditioning unit.... Thanks for this video again...

@Sorin_DIY

18 күн бұрын

1. 12703 is the most efficient. 2. you can use 2 modules, but they will need good cooling. 3. it will cool the water, but the hot side is in the same room, so it's not very efficient. it's ok for hobby projects, but you need to separate the hot side outside the room.

An instructive video as always. I hope to see a try with LED light + Peltier module. Led chip light produces a lot of heat, and work better when properly cooled. What about an average powerful led chip, lets say 50W, cooled by a Peltier, that is cooled by an heatsink? An interesting ideo of project.

I wonder which ones would be best for stacking the TECs to increase thermal delta. I think I remember reading that the power needs to be increased 10-fold per stage to be effective. Somehow I don't think that's right and I would like to know how it actually works in practice. EDIT: I would also be interested to know how long each of these modules would take to chill a cup of water. I think the higher power ones have greater thermal transfer but a lower delta.

I also Suggest a 12v 15Amps smps and test again 1210 peltier module I guarenteed More better performance...But also you are right because in 3amps power supply Better performance in 1203peltier module because maximum power rating 3apms and a 1210 peltier module Current Limit 10amps

Are those bare wires you put into PSU ? No banana jacks ? What is contact resistance of those ? No wonder none of the Peltiers have pulled nominal current.

😂real Sorin appears at the end of the video

Please test 12702 amd 12701 and compare with 12703 module

Hello my peltier is not getting too much cold even I bought 12715

What should I do?

I have bought many (tens) of Peltier elements from China via AliExpress. I tested them all and I'm telling you the performance varies a lot (!!); most of them are fake, they draw less current than in the datasheet, most frequently counterfeit is the 12710 type. I like your test, but I think the only real product is 12703, which really draws the current specified, the other 2 are drawing much less current and are less efficient.

@virgilius1979

19 күн бұрын

Si ai facut o treaba buna, ca ai postat aici, felicitari ! (eu sunt Bogdan, am si eu un mic canal, dar nu am mai postat demult)

@Sorin_DIY

18 күн бұрын

Salut si multumesc. Da, modulele acestea sunt de calitate slaba si dintre toate pe care le-am probat se pare ca 12703 e cel mai bun.

Yuhuuuu

If you tested 1203 peltier module in 3apms and 1210 Peltier module in 10amps that time performance Incearses

Can we make air condtion by using petlerr ?

@Sorin_DIY

18 күн бұрын

I made a separate video about air conditioner with peltier modules, you can find it on my channel.

@darfor12

18 күн бұрын

@@Sorin_DIY i will search 😄😄😄 thanks

How can we know which peltier modules are counterfeit or bad quality? ...

@Sorin_DIY

4 күн бұрын

Usually cheap ones are of low quality. but in the end you still need to test them, to be sure.

Cum putem genera electricitate din module peltier ? Am o soba care pe spate ajunge la peste 150 ° .....

@virgilius1979

19 күн бұрын

e simplu: se lipeste elementul Peltier pe soba, iar pe partea cealalta ii trebuie un radiator prin care sa treaca aer mai rece; diferenta de temperatura intre cele doua suprafete va genera o diferenta de potential ; atentie insa sa nu depasesti limita maxima de temp. admisa in fisa tehnica

@eugen-m

19 күн бұрын

@@virgilius1979 nu neg ca asa se face si multumesc pentru raspuns. Dar doream ceva cam la 100w+ , ceva care sa gerereze curent prin usb pentru diverse dispozitive. Experienta celor care au facut asta mi ar fi de ajutor

@Sorin_DIY

19 күн бұрын

Salut, trebuie sa fie diferenta mare de temperatura intre suprafete. daca soba e calda automat si aerul din camera va fi cald. ar trebui sa ai 60 grade C pe o parte si sub 0 grade pe cealalta parte. chiar si asa un singur modul produce o putere foarte mica, probabil mai putin de 1W.

Can i run the peltier with a charger😢

@Sorin_DIY

4 күн бұрын

It depends on what kind of charger. if it delivers the necessary voltage and current, it will work.

You have the heat pipe cooler upside down! Very inefficient.

I have 8 of the 12706 ones that I bought at a pallet bin store. Think there was 5 in each pack for about $5 per pack. I gave a few to a friend. I have no idea what I'm going to use these for.

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