Refrigeration without Electricity
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- čas přidán 4. 12. 2017
- Researchers at the University of Dayton are working on a refrigerator that can cool without electricity. The project was started by students in UD’s ETHOS program. The solar-thermal adsorptive refrigeration (STAR) system uses inexpensive, non-toxic and environmentally-friendly materials to provide cooling for vaccines.
The research is supported by the STEM Catalyst Initiative which was created to invest in and support faculty and student STEM research at the University of Dayton.
why do these videos have to be 98% virtue signal and 2% the science folks came here for? If you are wondering why folks dislike this its because of that
This sounds sort of like RV ammonia refrigerators, except the heat source is typically a propane flame, or electric heat coil. Great project!
Can you plz explain how would heat generate cool gas , I know condensed gas or liquid when its released from pressure get colder , but how would heat source generate cool gas from Amonia for example
@@The_Great_Hejaz Google is your friend...
@@mikek1187 you can escape it in ideal way you're not good at it
@@The_Great_Hejaz😂 what??? I mean Google the answer dude. Why do I need to spoon feed it for you? Here’s a hint: “RV ammonia refrigerator”. Needs a HEAT source to operate….🙄
@@mikek1187 you are right bud , I guess I wasn't in the mood when wrote that comment
I'm interested in this for the use of water collecting (de-humidification) without electricity. I like the non-toxic aspect of being able to use denatured alcohol and the solar concentrator.
You should look into Tech Ingredients solar air conditioner
Just get some pvc and coat the inside of it with this paint. Best solar collection ever. And it's at least 10 years ahead of what you can get publicly czcams.com/video/N3bJnKmeNJY/video.html
⚠️ 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
How did you go
Sir this is a very good Idea for many villages in India
Good work!
Amazing, I hope that this is being implemented.
I want this for my house as an AC
Do i understand well that the carbon is "outside", or it is encapsulated in some ways ?
Thanks : )
That's cool, but it's probably not as practical or efficient as compressor-driven refrigeration. Even if they don't have power, you could take a solid-state solar power with a battery bank, pair that with a hyper-efficient, under-stressed compressor with good insulation and get far better results.
If it does the same job without a compressor there is a 99% chance its WAY more efficient. And with the cost of solar panels+batteries they can just buy a plane ticket to usa/europe and problem solved
@@filipenegreiros9557 it is simpler and therefore more reliable, but not more efficient. Great idea for sure.
This is a different requirement set though. The "most efficient" requirement isn't always the best solution. Cost and availability of items also come into play. In which case the goal is a viable product you can build that caters to those constraints over "most efficient"
@@bill4639 who cares about efficiency when you get your energy from the sun? What matters is cost per kw of cooling over life cycle.
Efficiency is irrelevant when you’re using renewable energy.
@@sherifnabil9663 efficiency is a very important variable for engineers, especially for a student research équipe like this. It'll show how bulky the system would be, and in this case as cos criteria comparator.
Remote regions are among the few cases sustainable design makes sense, so u want it less bulky to carry.
Now, by your narrow-minded depiction of sustainability, is why it's a scam nowadays.. politicized led discourse that disregards efficiency for fantasy land is why many sustainable projects creates more trash, synthetic trash, wastes our tax dollars, and unnecessarily occupy and pollute precious natural real estate.
is it all in the same pipe?
I had an arkla server AC for a house. It was an absorbtion cooler using liquid ammonia. I often thought one could remove the gas broiler burner and replace it with solar thermal heated water to have free AC.
Can I get plans for this system?
When he said they drive vapor off and condense it again for another cooling cycle, I got confused. Why does it get heated twice if the thing it cooled off heated it?
When is this available commercially? Are there schematics for DIY? Thank you.Can it be modified to make air conditioner?
Wow, very cool. I must be on the right track, I'm doing something similar. Instead of a refrigerator, I was looking to lower my air condition bill, even just a little bit, by making a DIY AC with similar characteristics as your design. And NO, this is not meant to replace my central air, but to help curve it from running all day during the day. I was wondering if you are cycling the heat lamps, on and off, to extract the ethanol from the activated carbon, or just continuously leaving the heat lamps on? And, yes I know your used lamps, for this demonstration, and will use the sun, in your deployment. I hope you continue your endeavor.
hi
please explaine and show an applicable refrigrator which is made by this system.
thanks.
czcams.com/video/ZSJFPb8030g/video.html
After heating the carbon bed, where does the ethanol vapor condense? And where is the power required to recondense the vapor coming from?
hey you arent supposed to ask about the complete cycle.... this project is leaving that part out to get funding because they have no idea. i suggest they finish studying their rvs refrigerator schematic. theyll figure it out..
lazy engineers, conmen studying physics, service technicians with over active imaginations.... have been stumbling into the miracle that is absorption refrigeration cycle for years... (i even thought for a second i was a genius) and repackaging it to sell to investors, writers at popular mechanics, and patent lawyers
@@sheepheard483 Ah ic, thank you for the reassurance. Here I thought I must be missing something really basic.
it sounds so revolutionary. cause its kinda is? the same way a diesel engine is revolutionary. one is super col cause no spark plugs the other is super neato cause the idea of removing any of the 4 basic components to the refrigeration cycle is extraordinary
i really invented the the absorption refrigeration cycle on paper completely independently.. i worked on it for months..
many times in my life i worked hard on inventing something already in production, but i gotta tell you........ this one HURT!!! of course the production version was a better design following the same principals that i had completely created on my own. that hurt too@@vincentwu2848
the very second i think have a idea i nowscou pattents.... i have about 70 fails... already thought up.... and 5 wins, that i will never do anything with because im a failure..
i love refrigeration. im a second generation master pipefitter specializing in cascade systems, ultra low temp freezers, freeze dryers, and anything complicated that gets cold.. these machines are family
@@sheepheard483ask chatGpt, maybe you and ai together can come up with somthing new idea.
Sir me and my friends are also working on similar project for B.E degree project
Ethenol spoils like any food so what happens when u have to replace it
Can we have an update of this project? How many units have been sold?
None.... It's not as efficient as the conventional system.
@@thepalebluedot4171 more like they haven't figured out how to make it practical for Comercial use. As I see it the problem is geting the alcohol out of the carbon in a loop. Could be solved like with the old amonia fresors where you take the unit out and evaporate the alcohol back into the kooling unit but that would mean you had to work and have more units to get a constant cooling...
@@FreeTea4Me yes unfortunately there is so many brilliant inventions out there. Another one that looks like it will just disappear is the water filter made by eeg protein that one would have been a game changer. But maby we are lucky sombody is inspired to start producing them.
let's do this..👍
I wonder how cold this thing can get 🤔
Can you use Zeolite instead of the Carbon?
Yes it can
@@quiksilver1j But maybe zeolite expansion cause its chamber to explose break under pressure isn't it ? I'm doing researches to see if i can put it inside a double /triple glazed glass as solar catcher..
@@AutoNomades any success on that?
@@sandorkonya I didn't found yet triple glazed..^^ And you ?
@@AutoNomades haven't tried yet.
Nobody said what the chiller temperature is. Why would you use ethanol when ammonia absorption reaches colder temperatures and the units can be made out of steel piping or cast iron which is available worldwide as is ammonia... Which in a pinch could be refined from piss either human or agricultural.
I'm not knocking that it would work for refrigeration but it seems if you're going to go through all the trouble it would make more sense to make something more effective and efficient. An oval wheel will roll... There's a reason why we use a round wheel though 🤷.
So at what point is heat removed from the air, if that is supposed to be the end product? I must have missed something….
If i understand good, heat is removed around the alcool flask..
BTW this is the same thing PC chip coolers do SO there is that also
What happened to the old refrigerator that had a flame underneath and would cool?
I'm guessing you are referring to the Crosley Icy Ball.
crosleyautoclub.com/IcyBall/crosley_icyball.html
RVs now use a somewhat similar method of cooling.
www.amazon.com/SMETA-Propane-Refrigerator-Freezer-Fridge/dp/B072KDLXVF
all about the efficiency and practicality
you can get free electricity from the solar panel but it is not practical to use it because it does not produce enough energy and the energy cannot be stored overnight
@@kendipietro6855 thank you werry mutch for sharing. It was like finding Gold too me.
Propane refrigerators work on the same premise except the liquid inside the pipework used to cool was ammonia.
Same premise, different means of heating.
This here is exactly the same, with some newer techs and materials, so, more affordable.
basically you modified the The Einstein refrigerator.
ਹੋਰ ਜੀ ਭਾਜੀ
Cool
literally !!! lol
This technology must be pushed in rich western countries to lower our consumption. We are the hungry that needs diet. Energy and materials are not a problem - its greed.
may I get any contact to ask about this??? please reply
While I am not a part of this project, I have an ongoing interest in this technology. The following link provides some contact information.
challenges.openideo.com/challenge/bridgebuilder/ideas/star-solar-thermal-absorptive-refrigeration/
I hope this helps.
Please add full cycle for understand
I want to present this project for my college competition
So please help me earlier
Please!!
@@ashutoshpanchal8278, This is a relatively simple process. From my research, instead of using alcohol, water is significantly more efficient.
This is a very good simplified explanation of the process using water.
czcams.com/video/0oC36uV7O3k/video.html
Here is another really good resource that clearly shows how to build the "Crosley Icy Ball" which was a very early refrigerator design.
@@kendipietro6855 Hey can you please connect me on LinkedIn "NikhilDPrince" would love to work in collaboration. waiting for your response.
How they plan to create the vaccum ? Does anyone notice
When it needs a compressor to establish vaccum what is the point of this idea instead of re-inventing the wheel they should try to make the solar cells more effective and efficient
U could just add a vent linke a bicycle tire and reverse use a pump to creat a vacuum thats easy. Only use a metal valve coz.I think the alcohol will eat the rubber.
@@superliegebeest544 so if U allready suggest a pump then why not replace the PD pump witha compressor and call it a day😁
Sometimes its not worth reinventing the wheel
@@kanpurunplugged9970 coz it.not.supposed to use electricity.
Else by a solar powered fridge of the.shelve.and.call it a.day
i like this project and all!! It seems awesome but if i was India, I would maybe worry about fixing my electric grid first!!!! Over wasting a ton of treasures on going to dumbass space!!! Which literally helps nobody and did nothing besides everyone loses money every try and attempt!!! where idk having a vibrant electrical grid for the entire country seems like it would be quite the benefit to all and maybe worth far more investment but what do i know
0:03 tf you talling about? Do you see a Samsung shop at the back? Are we charging phones without electricity? Those shop boards are also electrically charged
Of course electricity is not needed in refrigeration. You can use a diesel engine to drive a compressor that is part of a refrigeration system. Now, the diesel engine don't require electricity to run unlike petrol engines. Did I read the title wrong?
inhaling ethanol is dangerous lol
so it just uses solar electricity instead of the grid ? false heading if true.
It uses solar heat directly, not electricity. It is more akin to a propane gas fridge (absorption refrigerator) than to a typical household fridge. I believe all it needs to get the cycle going is to heat the cooling solution
Good job. Pretending to promote a thing while actually suppressing it.
That's not a sufficient explanation of the principle at all!
Bihar is not remote whats wrong with u
Einstein and Leo Szilard's idea, NOT yours!!!
This one is based on ADsorption, and Einstein and Leo Szilard's use ABsorption process. BTW ABsorption refrigeration was not invented by Einstein and Szilard neither (in 1930). It was invented by Ferdinand Carré in 1858. It was also improved in 1922 by Baltzar von Platen and Carl Munters.
Anyway, the point is to move forward, not to debate whose idea it was in the first place.
Absorption fridges are available in the market place, often for Recreational Vehicules, or when a heat waste is available (in turbine exhausts or industrial processes, or from solar plants for example).
The novelty here is to use the (almost free and abundantly available) energy from the Sun, in India, to power small refrigeration systems in remote places without stable electricity. This version could be a huge game changer for millions of people (in India, and Africa as well).
@@EmmanuelJarri Don't be ridiculous ! Experiments go back to 1740 Willam Cullen, a Scottish guy. But those were not refrigerators! The French man invented nothing!
@@timmytee734 So you're pretty much saying this is not Einstein and Szilard's idea either ?
Please share this knowledge on Wikipedia pages about adsorption and absorption, this is where I found this information. This will provide everyone more insight.
@@EmmanuelJarri Wiki?? LMFAO!
No, I'm not saying that it wasn't Einstein's and Szilard''s idea. I'm saying experiments go way back before the French guy. But literally it was Einstein and Szilard's invention.
..wikipedia..😆
I'm glad you shared your knowledge about William Cullen, I can confirm this information is present on Wikipedia as well "'In 1748 while in Glasgow, Cullen invented the basis for modern refrigeration, although is not credited with a usable application" on his page, though not on the refrigeration page, which could provide more insights to readers. You have a point, I don't get your sarcasm, I think this information deserves to be on refrigeration, adsorption and absorption pages as well.
Well where the fuck are they gonna get ethanol?
It's made all around the world
Coolar stole your idea.
The part where this fails... Is him using solar to power it.. kinda bad engineering.
why?
It’s not very well explained. And when he said it attaches like velcro, i. Cringed. All the libtards are too dumb to understand wtf is going on.
Tell us something useful. Do you think only third-world nations need non-electric cooling systems?
Unhappyly it iseems to be financed by wheapons sellers Locked Martin...
Not sure that they are on the side of sharing for everyone to be happy etc......
So... Lets spend the planet's life to reinvent what has been already found and copyrighted by chicago boys 2.0... !! Until somebody really starts to share ..
@@AutoNomades Wow - this would be a far more compelling comment, not only if you could spell (unhappily, weapons, Lockheed) - but also if you made a point that people could actually understand. (Umm, nobody gets what you mean by "chicago boys 2.0" - and copyright is about books and music; you probably mean patents, and even then you're wrong....) Paraphrasing Wolfgang Pauli "this isn't right - it's not even WRONG". Dude: if you're gonna whine, at least (a) have a POINT, and (b) make it COHERENT.
@@sumgai7 Maybe _try_ to understand somebody not like you, then you won't have to pretends that it is _how_ I tell is the problem to not answer about the subject : Sharing to _really_ help the world (and not just pretending..)
Easier to do diversion hehe ^^🤭
@@AutoNomades Ummmm...thanks, I think....? (Actually: I have NO clue what you're trying to say - just like your original post, which was also nonsense.) Look, @AutoNomades: besides English, I actually speak and understand several other languages fairly well -- and am good with translation. So if you need to communicate in your own language -- and can MAKE SENSE in that language -- feel free to do so. (Because in English - what you say doesn't make sense, and that's being polite.)