DRY ICE vs ELECTRONIC COOLING!
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- čas přidán 22. 05. 2019
- We demonstrate why TECs or Peltier devices have a lower temperature limit. We also describe how low temperature liquid baths are set up in a lab, why they can be dangerous and even though we drop the "hot" side of a TEC to "only" -43C with a small amount of dry ice, we are approaching the practical limits of what TECs can do.
Previous related videos:
• TEC Freezer - Build Yo...
• EXTREMELY LOW TEMPERAT...
• TESTING OUR DIY REFRIG...
• BUILD YOUR OWN REFRIGE...
Find us on Patreon - / techingredients - Věda a technologie
This man is like the Bob Ross of technology.
I always got more of a Bob Vila vibe. But maybe it's the timber framed lab.
Just a happy little thermal electric device... justtt let it happen
"Just a nice little Dewar, these things are amazing."
Let's just hope that should there be an accident, it's a "happy" one as well!
Nah, he is better because even when watching Bob Ross I can't paint worth a damn but I can recreate the things on this channel. :)
This is the single most underrated sci/tech channel going.
Thanks!
Comments and thumbs up are very important to promotion by CZcams.
"This methanol bath is actually more dangerous than liquid nitrogen since it doesn't immediately evaporates in contact with skin. Should probably wear gloves." *Camera zooms in to his bare hands...* 😂😂😂
"These dewars are really amazing!"-as the liquid is running down the side of it and onto his jeans.
on the subject of hands zoom in, I instantly thought they could do with some Hemp Hand Cream (other products are available :) )
His son was in rare form on this one! At the end I could just imagine him smirking while still recording the send-off.
I like the zoom in on the camera screen and transition to said cameras footage...smooth as butter.
Your shirt reminds me of TV pixels when zoomed in.
Yes, we ARE “interested in that subject” and ALL of your subjects! Thank you.👍
Man, the science and technical information is brought in such a clear and understandable manner. Just incredible. And fun to watch too!
Great!
Not only that, but you can see moments and sparks of pure passion and happiness about science/engineering from him interlaced in the incredible clarity and technical details!
Simey I totally agree! That makes it a joy to watch :)
@@ghostindamachine I've never had an interest in sound quality or speaker material, or the resonating frequencies of polystyrene.... But I watched 2hrs of techingredients on those very subjects!! Just because of the delivery! Haha. What a channel!
@@ghostindamachine and I learnt so much
Criminally underrated. This channel should've exceeded 1 million subscribers years ago.
I would never consider you a mad scientist.
You're too happy.
I don't know... Add some green tint to the "smoke."
You saw that video then?
"This scientist looks too happy. I don't trust him!"
You are a mad scientist. I like this channel.
@@capturedflame Autism causes vaccines? Is this some kind of meme?
Thorough and to the point, plus safety information... Awesome video. Thank you for making these videos.
Sure!
I've wondered how TECs work for 30+ years. You have just provided the BEST explanation yet - I can die a happy thing now.
Thanks!
Did you see our first video on the TEC refrigerator? There, I expand on this principle further.
I am an older male from the UK, and found your channel by chance. If only they had taught like this when I was at school. Thank you so much for making learning "real science" so very interesting !
Thanks and welcome!
This guy:
1. Knows what he is talking about;
and
2. Explains it beautifully.
Congratulations!
I'm an "Ol' Fart" who grew up on the "Watch Mr. Wizard" series in the early '60s. I didn't realize it at the time but watching that series at 5 to 8 years old gave me a foundation understanding of physics, chemistry, electricity, and heaven only knows what else. The genius of Donald J. Herbert was that he was a likable person and used terminology a child could understand. His show wasn't about how smart he was or an attempt to sensationalize his activities; it was more about how easy it is for anyone to learn. Interesting that it has taken 50-some years for someone to present complex scientific ideas in such an understandable way. By-the-way; I love your shop ... I want your shop ... but ... I live on a boat ... so .... yeah ....
Yours is a rare lifestyle choice and and an interesting one.
He had the right idea in my opinion.
why is this channel so underrated? it deserves a couple of mil subscribers in my opinion!
Of course it does! Thanks!
It has become clear that CZcams's algorithms promote based on engagement ie thumbs up and comments. Keep them coming!
Your science is music to my eyes, food for my ears and a painting for my brain.
Either you guys buy everything new... or have the best cleaning habits on CZcams : )
I imagine this family has a lot of good habits.
I suspect its all new. Clearly a senior engineer so I would think he made some decent money over the years.
I must admit this guy is not there for the money, because there is certainly not enough money to make on CZcams for this type of presentation. Very professional presentation and I do appreciate a lot the fact that he takes so much trouble in presenting the scientific facts. Must certainly love what he is doing and love to share his knowledge. Must have retired from a well paying job to have all this equipment. Sometimes, I would like to share more of my knowledge, but I have monetary limits. We need more people like this guy. In a certain way, I would compare him to Bill Gates and his foundation, on a smaller scale, more on a scientific philanthropy style. Young people need that kind of stuff to get interested in science. Bravo!
@@pierreforget3357 There is a way if you have no integrity by using millions of ads or by promoting sponsors, but at least you get to choose which sponsors
You guys are going to get big real fast!
Keep up the good work, best science channel on CZcams I've ever seen!!!
I really enjoy the explanation of the topic and supporting technology. The experimental process demonstrating is understandable and well planned. Even the safety content follows the same style, e.g. gas cushion and frying pan. This is such a great channel! 👍
Nice demonstration!
These just keep getting better! I used the same process with isopropyl alcohol to make a mini -40C combustion chamber with the help of a few more tricks.
Amazing video as ever, I love this channel! My only suggestion would be to build an audio compressor and then record the audio separately. It would even out the sound levels and be an awesome video to watch you make it!
Man, I just love your channel. And it may just be my imagination, but it seems like you're getting a little bit cooler with every video. Thanks so much for everything you do!
Oh man!
Sweet demonstration!!!
I love your Chanel.
Man, I can't help but thumbs up your videos immediately upon loading. It is scary the certainty I have you will provide an excellent video.
What a great topic. Excellent content and understandable explanation. Let's see where this journey takes us!
Thank you for another awesome video! Love the information! Love the delivery! The Indium foil: Brilliant! Your demonstration of the Leidenfrost effect: Genius! Even your titles are great! Never any click-bait titles! As I'm writing this, there's a video suggestion in the right column, from another channel, that starts out, "5 New Technologies That Could CHANGE..." I'm glad you don't do that with your videos. They don't need it. The fact is, I've seen enough of your videos that if you made a video and called it, "Tires vs Pavement," I would watch it, because I know it would be chock full of really cool, useful information. Thanks again! As long as you keep making great videos, I'll keep watching them!
I like this one. Perfect length where my brain does not explode with all of the great knowledge shared! Keep up the great work!
There's some interesting graphs on the wikipedia page for seebeck coefficient (voltage vs ∆temp) vs absolute temperature for different metals. Some increase with temperature, some decrease, and some do both depending at different temperature ranges. The common feature is that all of them trend toward 0 as temperature approaches absolute 0. Semi-conductors work differently than metals in that their "apparent" seebeck coefficient depends on how they're doped, but across the board their figure of merit trends to 0 as absolute temperature approaches 0.
Always great content 👍
Not exactly what I expected from the title....but a great video and a wealth of information.....
Thanks for this endeavor! As high functioning, this feeds my soul. I can't find this kind of content anywhere else. I am very grateful.
Nice explanation and experiment! Keep on going ;)
"Makes me look like a mad scientist, doesn't it?" He says, gleefully.
I would be exactly the same.
I'm guessing when the cameras are off he is a mad scientist
Another accurate and detailed explanation of a physical effect. I can feel myself getting smarter! Thanks.
You're welcome!
I can’t decide if this is one of the best or if it’s the best channel on CZcams. If it’s not the best it sure is my favorite.
Great channel, interesting and educational
Love the videos! Thanks!
Your videos are more professional than anything I've seen on CZcams...
cool subjects, great editing and video, well researched material. Thank you for providing a good reference bar.
(hehe - colder than cool)
Now I know why peltiers do what they do, super great explanation, thanks.
Very convincing, very substantial. Congrats!
I enjoy how your subjects are eclectic and generally fall in line with my interests. Thumbs up.
Thanks!
Long time purveyor of your videos. So I subscribed today.
Thanks for the hard work and consice explanations.
Thanks!
Hi Tech Ingredients, I loved your series on TEC's as I've been thinking about a TEC setup to reach very low temperatures for a couple years by now. This demonstration here really explains well why you can't go for very low temperatures easily, or at all, even.
But through my own experimentation I recently made a water cooled heat exchanger housing with 3D printing to circulate water through with a simple water pump and evacuate all heat from the hot side and keep it at room temperature, and with this setup and a single TEC1-12706 I could measure temperatures below -30°C (my infrared thermometer doesn't go that low) on the cold side while keeping the hot side at about 20°C, which seems a much better temperature differential than what you were getting. I was powering it at 12v though, as that's the recommended working voltage for those units.
I actually thought about using methanol to circulate through a 2nd heat exchanger attached to the cold side to try and bring that methanol down to the temperature recorded on the cold side. Would that possibly work?
Great video as always, thanks.
Super interesting experiment and very well preformed and explained CONGRATULATION and thank you very much.
Sick. I subbed after seeing your speaker video. Love this channel!
The speakers were awesome, for sure! Those drivers are still sold out half the time I look.
Thanks for another fantastic educational video!
I'd like to see you make a TEC powered cloud chamber.
Absolutely. One thin and large enough so that it can be hung like a painting.
I don’t even know what that is, but i wanna see it too
Thoughtemporium is doing this right now on his Instagram.👍
whats a cloud chamber?
I think the thought emporium did that
Another great video, thanks for the free education.
Looking forward to the next one!
Very interesting and detailed..
love your content keep it up!!
I had to laugh when you said " maybe I should be wearing gloves" and your cameraman zooms in on your hand... and then a little bit more for good measure. lol. love it and love your videos.
Amazing video you really are the best.
The difference between cold liquids that boil at skin temperature compared to cold liquids that don’t boil at skin temperature was very interesting and a great piece of safety knowledge.
As usual, a great video! Also: your shirt looks like the pixels on an LCD panel! 🙂
11:49 hahaha you already look like a mad scientist! please never stop making these videos! they are the best!!!
I was experimenting with my small thermo electric refrigerator and desiccants and I got 15 percent more efficiently using the same current.
Your videos inspire me!
Great!
Great content once again. I really enjoy your professional, topic-focussed approach. Informative and detailled. Might be a bit of a nieche here on youtube, but I'm glad you fill it so well. Greetings from germany!
Thanks!
Thanks for explaining the dangers of cold baths. I wasn't aware of the lack of Leidenfrost Effect in methanol.
Yes, you sir definitely look like the 'Mad Scientist' we've been looking for. LOVE your channel! Keep up the GREAT work!
Thanks!
Thanks as always for your efforts. Safety tip for dewars: wrap the exterior with surgical cloth (athletic) tape that way when it decides to go south it will be more contained with fewer flying bits. All it takes is just a small bump by something, but I have them go-off inexplicably.
Cheers, Mark
******************************
PS However, they do look much 'cooler' without the tape.
Always something very cool on this channel!
Ha!
You remind me of one of my favorite tv shows when I was a child. Don Herbert as Mr. Wizard. Love your content.
Thanks!
im looking forward to checking out the other peltier videos you got
Love this channel. Nothing like seeing some legit science being done. None of this pop-sci garbage plastered all over CZcams ** cough ** king of random
King of Random stopped even trying to be science. Now they're just the "lets see what happens if we do this" channel.
ForestSongUnLTD Another scumbag who jumped the shark was the guy behind The Action Lab, used to follow him but after offensive(to his viewers' intellect) fake, clickbait, gutter trash like that viral meme of fixing broken kitchenware with milk I immediately unsubbed.
@@V0YAG3R I followed both the action lab and TKoR before they became "like that" and honestly they both made very good content, and informative too. It's sad to see them degrade into stupid internet trends and overreact to the most minor things happening.
@@ForestSongUnLTD Just like those "life hacks" channels?
Well, I guess you wont have to worry about that anymore will you? You know... because hes now making content with the true "King of Random" in the great beyond.
Constantly awesome content.
Thanks!
I like the way your explaining things, really like your videos, very informative...🙂👍
Thanks!
As always awesome video 👍 I watched them all. Am i addicted? 😂
I hope so!
I love this channel and I also learn english by watching these videos.
Great!
'this kind of makes me look like a mad scientist'... You ARE a mad scientist and I love every minute of your videos! Except for the 5 min 1000Hz tone previously :-p keep it up!
Excellent description of Peltier devices. Lots of potential with the homebrewing community, these are good for fermenting.
Wu Me that too!
An understandable genius
Thank you for sharing your knowledge
Amazing! Thank you for this!
Sure!
Thanks again!
Very cool no pun intended thanks again great channel.
Great video! As always. I hope you haven't lost interest in the massive magnet you built, I have been waiting for a follow up since it was posted.
Not at all! Its like a candy store here...what next?
Very interesting comparison between liquid nitrogen and your "Bath" of methanol, I used to slosh nitrogen around at work (microscopy) and as you say, when better informed your relatively safe. The only time I ever received a "burn" was when I was told to wear gauntlets by a health and safety officer, the liquid ran into the glove and had time enough to cool my skin and then the nitrogen touched me and the air turned blue!...we never did see eye to eye after that.
Best channel on youtube!
Good info
14:41 Dunno why I laughed at that hand zoom-in lol
cool ! .....both literally & figuratively
Your such a good speaker.
Thank you!
Ooh, big and powerful LEDs, can't wait for that.
Finally! Right decision @18:50 you'd better make aquarium lights... please, aquarium light are much healthier and safe. Don't work with methanol anymore. Take care!
You're the happiest "mad scientist!" I wish you much happiness, please continue the madness!!
You're like a modern Mister Wizard for grown-ups. I love it!!
Fascinating
Something tells me this man has never had problems paying his monthly bills, talk about smart, this man has a technical astronomical brain of understanding, he's the one that instructs the phd's of modern day society.
Camera zoom to the camera is a nice touch
thank you
Thanks for the video. Very interesting. Please properly secure those gas tanks near the HVAC equipment !
I would like to see a project about making dry ice is you guys willing to do that :) By the way great video thanks for your effort.
That would be awesome. NO FIRE EXTINGUISHERS though.
I'm looking forward to your upgraded LEDs!
You could get colder on the cold side of the Peltier if you are warmer on the hot side. That's cool :)
I can report that I've got -62 C on the cold side having -16 at the cold side. And yes, the 46 degrees difference is smaller wrt 70 degrees difference at room temperature.
I bet you have at least one osha guy in cold sweats over the cryo methanol, wishing you would hire 9 more people so he can get you for not wearing gloves.
Long as he is sole proprietor he can do whatever he wants and OSHA can't say a thing. If he orders a nondirect family member to do the same though- you are right though.
I'm more worried about the antifa guys watching this and getting ideas 🤷♂️
"I seem kind of like a mad scientist"
@14:29 "Oops...sh(bleep)t"
Naw...just kind of like miffed...not really mad :)
These are some really great experiments...learning quite a bit about so many different subjects...thank you for creating these videos!
You’re like the super intelligent grandfather, I wish I always had. Great work! Keep it up.👍🏻
Paul Adams take it easy Morty!
Maybe a Tech Ingredients hat would be a good option. ; )