EXTREMELY LOW TEMPERATURES! - Using TECs
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- čas přidán 11. 07. 2024
- I explain why stacking TECs is not done to increase their cooling efficiency, but can be used to achieve very low temperatures.
Construction and testing of the freezer is coming up in the next video. Stay tuned!
Previous videos:
• BUILD YOUR OWN REFRIGE...
• TESTING OUR DIY REFRIG...
Find us on Patreon - / techingredients
Thanks for watching! - Věda a technologie
![The best (cheap) Peltier module [test 2]](/img/n.gif)
the true value of CZcams right here...
Amazing content I recommended your channel to my dad and he watched all your videos in 5 days
Your dad sounds cool. ;)
haha, yes! that's awesome
@@thatguyalex2835 ⚠ God has said in the Quran:
🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 )
🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 )
🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 )
🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 )
🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 )
⚠ Quran
My dad would have loved this channel. I do too.
@@thatguyalex2835⚠️ God has said in the Quran:
🔵 { O mankind, worship your Lord, who created you and those before you, that you may become righteous - ( 2:21 )
🔴 [He] who made for you the earth a bed [spread out] and the sky a ceiling and sent down from the sky, rain and brought forth thereby fruits as provision for you. So do not attribute to Allah equals while you know [that there is nothing similar to Him]. ( 2:22 )
🔵 And if you are in doubt about what We have sent down upon Our Servant [Muhammad], then produce a surah the like thereof and call upon your witnesses other than Allah, if you should be truthful. ( 2:23 )
🔴 But if you do not - and you will never be able to - then fear the Fire, whose fuel is men and stones, prepared for the disbelievers.( 2:24 )
🔵 And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. ( 2:25 )
⚠️ Quran
-King of Random-
God of Random
He is dead now, r.i.p
It’s great to see someone that goes through the calculations and explains the graphs to show the “why and how” instead of just showing it working or not. Thumbs up for the presentation of materials!
Thanks!
Excellent video! This channel + Applied Science = mind blowing.
Oh i'd LOVE to see them collaborate once! Would be a total geek-out!
Or at least the conversations between them would be more than interesting/entertaining :)
These guys are an intellectual oasis in the sometimes abysmal (king of random) world of CZcams. Thanks for the content.
And, thank you for the compliment!
I would still say The King of Random was fun to watch, although of course much less serious
Most important of all, he showed those graphs. I needed someone to explain it. It seems pretty simple now but it is nice to have someone present it. I would like to achieve really low temps with TEC. Maybe I will use CPU heatsinks with heat pipes to pump away the heat.
A very amazing clarification for myself. Thank you. I will work on my patients for more info. I really could have used this video back in January. Then again, afterwards it is always gratifying to know you learned from your own R an D. To have you confirm everything, makes it that much sweeter.
Recently discovered your channel and bench watched every video. Is all this research and experimentation just for "fun"? If so you're living the dream!
Always good to watch a Tech Ingredients video :)
Thanks for this. I know this is now an old video but i've been trying to find info on cooling a volume of air inside a box (camera inside it) with TEC's and this series (especially this video) is so useful in understanding what im trying to figure out to get this done effectively
Always a pleasure to observe your presentations! Very insightful!
This is high quality content and very interesting stuff! Thank you!
All your videos related to TEC is really amazing and I thought a lot from your ! Thanks a lot Sir!
Awesome videos. You guys are one of the only channels that goes so in depth with these peltier modules. loving the videos!
Thanks!
Brilliant thank you - the stacked tec’s was just what I was looking for - couldn’t find info on doing this anywhere else - I’ve liked and subscribed 👍
It is always a treat for the mind when a new Tech Ingredients episode comes out.
I love this channel! While I admit your TEC project is less exciting to me personally than your turbojet project (sorry), I absolutely love the way you present and approach each project you're working doing. That presentation and the explanation gets me interested in what's going on and keeps me interest irrespective of my "excitement" level. I also truly admire that you don't treat your audience as morons and more as equals, that's extremely refreshing as well. (PS: I'm the daughter of an aerospace engineer/PhD in mechanical engineering thus my excitement over your turbojet project. My dad and I used to build them when I was younger to power Go Carts and the like. We also made a pulse jet engine or two and other such nerdy pursuits. So your turbojet project though different in application from ours, is a trip down memory lane for me anyway). Keep up the fantastic work!
I would love to be able to explain concepts with the clarity that you have in your videos. Excellent and inspiring!
Excellent and informative video - Thanks.
I love all these videos about TECs and mini fridges/freezers. I'm planning on rebuilding my mini fridge to use 9 TECs instead of 1
I like TECs and I like your plan, but did you originally want a low power fridge or a super small one? Just a chest freezer, with a refrigerator's thermostat swapped in, offers a lot of space and it's very energy efficient. That's the route I went years ago - chest freezer to chest fridge conversion.
I am happy to see your video. That's a pleasant end of the Sunday for me...... :)
Thanks for the detailed explanations.
The music is so chill and at the perfect volume so we can understand everything. Very nice job and attention to detail.
Thank you!
Very informative and no theatrics or bs, only technological innovation. wow!
great video, Dr. Perkins, thank you!
Wow! So useful. Thanks
I was enjoying the video then saw the -56 degrees C temperature - holy moly! nice work!
An added benefit of it is snowy outside, let us see the main use of this device in summer.
@@wobblysauce if its snowing, jist put food outside😂
-3 *c outside. So that's around 50*c difference for a stacked TEC modules
this is my new favorite youtube channel
Sweet jeezeus, I'm so happy I found this video! I started playing around with peltier modules recently with a complete simpleton's understanding since I put zero due diligence into *first* educating myself, only to presented with what are basically engineering PhD dissertations as far as figuring out how to use these gizmos.... First youtube video I've found that's doing hardcore, ridiculously over-my-head things with them & also giving advanced practical advice from a highly informed standpoint. Thank you!
Take a look at our video on the solid state mini fridge. There I go into a pretty good review of the principle behind the operation of these devices.
@@TechIngredients Most excellent, thank you for the tip. Happily subscribing!
Thanks for producing that content
By far one of the best channels on the net.
Awesome videos Im so glad I had found this channel!
I am too! Welcome.
Awesome information
This is golden, thank you for the maths! Your presentation reminds me of a good lecture that gets me stoked on whatever you're talking about.
Amazing content here. Thanks for being technically precise
Thanks!
This is a much more interesting video than the first series of peltier coolers. The first set was basic. Now we start getting into the good stuff.
We apparently have many random interests in common. Love the content. Thank you!
Very impressive! Thanks.
Epic as always
Love your video's even if I do have trouble following all of the science. Good exercise for my brain.
i'm recommending your channel also to a friend of mine! he will love this!! xx
Thank you!
Very good explanation. Thank you!
Do be careful using glycol with PC cooling parts as they often contain PVC that will react with the glycol.
Thanks again. Cheers, Mark
Thanks for the info, interested in seeing the outcome...
Thanks a lot! 👍👍
With amazing content like this, why does anyone need a subscription TV service?
Instead, it's a better idea to support great channels like Tech Ingredients.
I absolutely agree.
I was just working on a cooling system in lab using TECs and CPU Fans and I was wondering whether using a single TEC or multiple stacked together gives me better efficiency. This video really offered me plenty of insight! Great video!
so which is best
2:50 ackshually, it's not a 12-710, it's more of a 127-10 (127 elements, 10A rated current)
You are a genious, thanks a lot for sharing !!!
I found 20 of those TEC12706 parts for cheap a long time ago. I've been playing with them on occasion but the new info where you reduce the current across the 2 extra units when cascading them will kill some time while the springtime snowstorm wraps up. Thanks!
Nice stuff
Thank yo very much...I tried it and gave me a good result better than before..but I used 10 vdc instead of 12 v and the two modules aboce in series connection then parallel with the bottom one...the bottom I used TEC1-12710 and the upper two TEC1-12706 and got very nice result.
Excellent explanation as usual
Thanks!
Awesome content
Thanks!
Lovin' the Drip Mr. Tech Ingredients
This is very helpful. I am planning a cloud chamber project, and I want to build one with a larger, top-down viewing area approximately 8 inches square. Ideally, I'd like to consistently get the cold plate below -30 C in a + 22-24C room, and have it operational for at least 30 minutes at a time.
THIS IS AWESOME
Very informative channel
Thanks!
I experimented with TEC 20 years ago (From MECI if anyone remembers) and found the same inefficiencies from stacking. Also, they are much better heaters than coolers. Create 46w heat vs 18w cooling. Great video as always.
I think another way you could go about stacking TECs is to run them water cooled in series, with two separate loops. The PECs themselves are only touching two water coolingheat exchangers. The chiller water loop and cooling water loops run in a cross flow configuration to minimize delta T for each one. The chilled water return goes into TEC 1 and then TEC 2 and then TEC 3 where it becomes supply and goes to the conditioned space. The cooling water return goes into TEC 3 first and then 2 and then 1 where it becomes supply to the cooling radiator. Now each TEC is running roughly the same delta T and the same wattage just different temperatures. The only disadvantage is this requires a lot of hose and fittings.
Awesome!
Good job, Steve
Thanks, Mr Gates.☺
Ahh, the inefficiency builds in series...of course. This is something I've always wanted to put together so thanks for the demonstration!
Sure!
Niice..thank You for sharing!
I have done a 8 TEC (a square of 4 stacks made of 2 TEC) cooling a 64 cm² aluminium plate at -52 °C for a cloud chamber tanks to this video so thanks !
This is like enginerd, mark Robert. 10/10, found when looking for reference material for my own micro generator
Ah yes. The energy needed to move the heat is rejected off the hot side along with the heat you are moving. That is a good thing to remember. It then leaves a heat "well" or "depression" for heat to flow into through one way or another.
I love your presentation on a fascinating subject.
Hey there. Have you thought about making an episode on EO pumps? i've recently heard of them but the resources you can find online are lackluster.
Stop filling my head with all this glorious knowledge.
Always wanted to know what happens if one cascades TEC's.
Then ended up reading up on CO2 in ultra low temp refrigeration, minor issue with the triple point and the ice blocks pipes.
Fascinating.
Awesome video guys, but still waiting on that afterburner 😁
Ben you should be promoted to Head of the Revision department at Wikipedia. Stunning details and insightful. Thanks.
thanks man running the two in series on a three layer stack made a huge difference in performance im hoping thats the solution for my project.
Sure, good luck!
I was waiting for the numbers, watts (maybe btu or similar) as promised in the first video. I hope you make a follow up on that.
Video and audio are very nice for this one. Could you do some of the math out in excel or some kinda software for us and ahw the process? You are perhaps the best technical youtuber (applied science is also quite good).
Great video! More content please! hahaha
No problem, more incoming!
Lovely setup. What kind of computer fans are you using? With the fluid dynamic type, over extended periods the bearings will drain of the oil if they're used horizontally like you have them configured there, and sieze. Some manufacturers get around this with grooves in the bearings, so it could be just fine.
I tried putting TECs in a stack as you showed here myself some time ago.
In my test the last TEC heated up instead of cooling. I also put the 2nd and 3rd element in series across a PSU.
My conclusion was that at a minimum I would have to adjust each TEC with a separate PSU to have a chance of it cooling down at all.
Maybe I was feeding it too much voltage though.
The setup in the video works well, but for each type of TEC there is an optimal voltage. Use a variable voltage power supply and dial up the voltage slowly (over many minutes) untill the temperature fails to drop any further.
The Mr. Rodgers of science and engineering 👍
thingking out fo the box.. is amazing
Love it! This is off-topic, since your want to cool with "TECs" but have you heared of the "Schukey-Motor". It is a thermaldynamic machine that can also be used as a cooling device / heatpump.
BTW: Sorry for my typos, my English isn't the best
CrashPilot1000
Do you mean something like this?
www.soundenergy.nl/theac-25/
Heard of them on Dutch radio.
Would love to see more ultra cold videos. Is it possible to reach cryo temps using other technics?
Thats true, I did also home testing and is not working with stacking them together. the next stage gets hotter, and the next also, that all peltier modules are to weak to cool each other.
Awesome
Total respect for your knowledge and your pedagogic way. There it out there a technology called Stirling cooler, that is available but at a high cost. Stirling engine is very explained, but stirling cooling not so much even on specialize engineering channels. By any chance, could you thing of a way to enlighten us about the principle of even better a DIY way to cool of freeze?
Another nice video! Have you tried parallel rather than series, ie a single layer array of TEC's (as opposed to stacked) and so covering a larger area ?
Series will allow you to reach greater differentials, but at the cost of effeciency. Parallel is the way to go as long as you're below approximately 1/2 the maximum temperature differential. At very low differentials, they're pretty effecient.
Thumbs-up always
Thank you for sharing your gift with us. You are an inspiration. Sell something so we can support you.
Thanks!
Subscribe, link and post comments.
Great content. I really appreciate the thorough scientific content that you provide. I am starting to try to design a cold trap for a freeze dryer. I have a few TEC's that I thought about utilizing inside of a chest freezer to achieve the required -40C. have you tried any like this before? Do you think that it might be achievable?
I'd love to hear how that worked out.
How did you make such nice, colorful graphs with just a pencil? You're a robot, a left handed robot, I knew it!! There was a brief moment when you thought your mic was off and you were speaking in 1's and 0's! Replicant or not, you're great and I'm hooked on your channel!
Zuckerberg is the only synth I know of.
melhor canal !
These TEC elements typically have a maximum COP when operating around 2V with a dT of 10K, however, you need a lot of them at such low voltages to get the job done! Their COP also increases a lot with increasing T(hot), ceteris paribus.
Correct.
One sees the connection between evaporation removal of high frequencies resonances in gases and the hotcold Junction equivalent in this demonstration video, that led to laser cooling of Black-body Singularity-> Bose-Einsteinian Condensation achievement.
Multi-stage Energy (spin
I love this idea and I think it might work. A sound wave in gases (liquids) must heat and cool certain zones (low and high pressure distributed along the length). If this is done in a cascade (next line from the top), then low and high temperatures can be achieved. That is, it is possible to make an air conditioner or heater without moving parts. You just need to move the temperature gradient from certain zones and transfer them to the next. This is difficult, since there are no devices that can be bought on aliexpress and tried this principle quickly, to make a video.
I've looked into trying to optimise the efficiency, and I thought about the insulation side of things. How about vacuum panel sheets, my thoughts was two sheets of perspex with support mounts to stop them collapsing and sucking the air out, this would be one wall surface. What are your thoughts on this?
thanks, nnice viideo!!!!!!!!
I really want an in depth look into this
It is said that only those who can explain the apparently complex in simple terms actually understand what they are talking about. This guy is one of the few (not very many) on CZcams who ACTUALLY understand what they are presenting to us. Would that there was more material of this quality. No fuss, no messing about, just clarity and explanation of whatever he is doing this time.
Thanks!
You are right. In order to present these videos I do a fair bit of research and in doing so discover how much I really don't know about a topic.
@@TechIngredients Thanks for your reply. As a, now retired, 'generalist' engineer, mainly small scale systems and their controls, I have long held that the more I learn the more I find how much I don't know. Again my thanks, especially for this video, I have been interested in TEC's for a long time and - Suddenly - I actually understand them a bit more. Please, keep up this output - we need it! What I wouldn't give for a workshop like yours!!!
When is the freeze dryer video coming out ? Keep up the good work !
Thanks!
The desiccant air conditioner will be posted in about a month.
@@TechIngredients so no freeze dryer ? :(
GREAT VIDEOS. You have really explained the workings of TECs wonderfully.
I have a question, How do i calculate they "load" or numbers of watts I need to cool an incoming water supply. Im looking to build a "instant" water cooler using TECs. bringing room temp water (25c) to iccy cold(5c) as it runs through the machine. efficiency is not a huge concern, I want something to work quietly. any input would be appreciated.
The specs for these devices are available from distributers, but not if you are obtaining them from say eBay. Take a look at our video on the mini fridge. I discuss these specs and from them you can size the capacity and quantity of TECs that you will need.
Thanks for the awesome demo! To go to lower temperature, how about a tec with lower energy gap as you get to lower temperature?
They make these, but they're extremely expensive.
In Finland we just open the window for cold beer.
You mean deer?
@@MindlessSuccess Deer are a bit skittish, moose are much easier to catch. It's the stomping, bleading, screaming and running that's make good stories for the sauna...
@@blahorgaslisk7763 Hoot!
The black turtleneck looks nice on camera.