This New Space Tech Could Someday Replace A/C


Today’s air conditioning and refrigeration
systems essentially follow the same principles that have been around
for about hundred years. If we continue along today’s path
then that sets us up for a future where air conditioning
may actually become one of our single largest sources of greenhouse gas emissions later this century. Air conditioners have become inescapable
part of our cities. They operate thanks to refrigerants – chemicals which when released into the atmosphere are potent
greenhouse gases. AC units also require huge amounts of energy. The U.S. uses more electricity for cooling
than Africa does for everything. As it becomes affordable
for millions more people, the problems that come with AC will only get worse. Which is why scientists around the world are
searching for solutions. Here at the National University of Singapore
professor Chua and his team are completely rethinking air conditioning. We need a quantum leap in air conditioning
to save energy, secondly to save our environment. What we have in the lab is next generation
of air conditioners which is extremely environmentally friendly,
less energy intensive, it doesn’t eject heat to the environment
and doesn’t need the chemical refrigerant. It’s a water based air conditioning. It requires only one litre of water to operate
for 20 hours. And you can use rainwater to power up the system. But there is a limitation. The air needs to be dry before you can carry
out this process in an efficient way. And that’s why there are
two separate stages in this AC. First it dries the air,
using membranes that filter the moisture. Then the water inside the unit evaporates
taking heat with it. It’s close to what most of us experience
every day – sweating. This system uses 30% less energy than
a traditional air conditioner and it’s also expected to be 30% cheaper. Crucially, it uses no refrigerants. And although it’s not available yet, the
government is backing this project, betting that soon it could be a breath of
fresh air for Singapore and beyond. Across the other side of the world, one start-up
in California is looking towards outer space to revolutionise cooling. And they’re about to test their breakthrough
in the field. Right now if we measure the temperature of
our surface, it’s around 48 degrees Fahrenheit and the air temperature is 60 Fahrenheit. We’re not evaporating water and we’re
not using any electricity. You can see we’re in a middle of a field
and it is just a thin film coating that enables this cooling effect and it does this 24 hours a day,
7 days a week. SkyCool Systems is commercialising
a technology that harnesses the cold of the sky and space
to enable electricity-free cooling, as implausible as that may sound at first glance. The way it works is it takes advantage of
a natural phenomenon that allows a surface that’s looking up
to the sky to essentially send out some of its heat. Nearly everything on earth gives off heat
in the form of infrared radiation. SkyCool’s panels act as high-tech mirrors
reflecting some of that heat out to the cold expanse of space,
allowing a surface to dip below the temperature of the surrounding air. SkyCool’s multilayered film means that it’s
now possible to achieve even during the day. The panels could be added
onto today’s cooling systems reducing their energy use
by as much as 20 percent. The energy we use for cooling is expected
to grow six fold by the year 2050. And it’s primarily gonna be driven in warmer countries where air conditioning use is not prevalent today. What excites us about our technology is that
it represents a unique and completely different way of handling the
cooling problem by taking use of a resource that’s always
been there, the fact that space is cold. It’s almost like this has been literally over
our heads for centuries, millennia, but it’s something we’ve not been able
to use as a technology. With the demand for air conditioning skyrocketing,
using water and the cold of outer space may turn out to be the best bet we have for
our warming cities.

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100 thoughts on “This New Space Tech Could Someday Replace A/C

  1. So they're somehow drying and then the air using a swamp cooler….
    I still don't see how the technology on the second one is working all they have is a simple film on a frame… So they could come and cover my roof with this big shiny mirror…

  2. Just dont use AC? How about that. WE dont use that in Switzerland. If its hot, Open the Windows or sit on your balkony.

  3. This kind of refrigeration only works in non humid environments. In humid environments, it will get even hotter due to too murky air.

  4. Both ideas are workable but requires manufacturing of each product which emits greenhouse gases and energy. Moreover disrupting the chain of products is much harder. This is the problem with most startups , the SkyCool System might be very expensive given the technology they are working with. You can see Dr Aaswath Raman Ted talk to realize the Challenger

  5. There will always be new problems and there will always be scientists looking for solutions. Nothing new here.

  6. That is a whole friggin lie, Africa is not That poor at all I think this is false facts as the Americans always do, always try to degrade and compare to Africa. With false facts, just in west Africa where I live I’m pretty sure that every room in the house has AC if the house doesn’t have central air System and I am on one of the smallest country in the west, what do you think the other countries do? The same thing and for The place to Be a whole continent I don’t think you will compare Just the amount of American electricity to a whole continent, y’all Trippin

  7. In warm climates your roof should be white, same with roads and parking lots. It will reflect heat instead of absorbing it.

  8. Video Quote:("Today's air conditioning and refrigeration systems essentially follow the same principal, that have been around for about a hundred years.")

    Well so what? the wheel has been around for a hell of a lot longer and we still use it. Just because an idea or method is old doesn't mean it's obsolete.

    Video Quote:("Air conditioning may actually become one of our largest source of greenhouse gas emissions, later this century.")

    Wrong, air conditioning systems don't produce green house gases. The refrigerant is "contained" where it is simply recirculated. Asawath Raman starts this whole thing out on a false premise. If he has an alternative cooling system then fine. But don't present it by misrepresenting current methods.

  9. I don't understand how infrared light "escapes" to space. It still goes through the atmosphere…
    Where is the magic? Your panel will still warm up.
    If you mean the panel absorbs less energy I totally agree but reflecting heat???

  10. Why dont we cool our houses with a pipe system that circulates water underground far enough that it cools on the way through kind of like we use water for radiant heat all we would need is water pumps and fans both can be powered with solar energy

  11. basically a dehumidifier strapped to an evaporative cooler & mirrors to block the sun hitting the ground. this isn't new tech, this is old tech.

  12. those skycool guys might have figured something out…

    but they sure as fuck dont know how to apply a vinyl

  13. The last one will be in the end a fail like with the solar panels, when they will have many shiny things and a bird will fly over it will be set on fire or it will be blinded from the heat and light that the thing that has the mirror panels.

  14. Oh wow what an amazing new idea! Slap on a freaking mirror on top of your head, $2,000 please and thank you very much!

  15. Wow! how inspiring! Never seen before dehumidifier and aluminium sheets! Guys guys guys, I think I have a revolutionary idea too and I call it the wheel.

  16. The problem with Singapore is that they do not speak own language.

    A nation without its own language is a nation without a spine!

  17. Um that's what's called a swamp cooler and unlike Africa the United states has double Africa's population with most of the population living in areas where the temps hits 100+ degrees Fahrenheit during 3 months of the year at least.

  18. What is this? Sticking a mirror on a roof is innovative?

    Other is an evaporative cooler which exists; but faces challenges when air humidity is high.

  19. Evaporative cooling has been used for years. Come to Tucson Arizona. It's just not feasible to coat everything with a plastic coating facing the sky. What are the birds going to crap on?

  20. The biggest problem with coatings and similar technologies is that they need to be kept clean to remain efficient. Most people would never keep them clean enough

  21. The title is completely misleading. The act of taking energy out of the air to cool means you are conditioning air which is in fact an A/C.

  22. I have been in the HVACR business for 35 years and it has frustrated me to no end these ridiculous systems that will never be residentially or commercially applicable. There are ways to easily make your current systems use up to 50% less energy but the industry doesn't push them and the average person doesn't know about them.
    1. Filtered misting systems for the outdoor condensing unit that can vastly help heat rejection with minimal water usage. The head pressure is lowered and the compressor uses less energy.
    2. Insulation. Insulate the attic space where the largest amount of heat gain in the summer and heat loss in the winter occurs. If you keep the heat in or out as the season dictates then you won't have to spend money moving it around. If you had a boat with a hole in it would you fix the hole or just buy a new energy efficient bilge pump. In new construction you can use foam insulation in the walls and have energy efficient doors and windows put in.

  23. SO basically just a highly reflective surface…you might as well throw some solar panels on there and generate some clean electricity.

  24. Sorry but inverter technology and heat recovery is doing much more and needs to be further developed.

  25. You know you’re in for a load 💩 when you see a hipster with a man bun pretending to be a scientist

  26. Anyway theres definetly room for improvment from 1980s ac s that were quick fix engineered by an electric guy

  27. The only problem with the first featured solution is….
    You get tons and tons of molds over time (in the room that it is installed.)

  28. What a joke. This technology has been in use in the southwest United States for 40 years. Google master cool prechiller.

  29. What about lake water cooling like many big buildings use in Toronto? Not everywhere with sweltering summers also have a giantic cool great lake or ocean but for those of us that are that lucky it is a fab and underused option.

  30. so stupid! if man spent half as much on atmosphere cleaning plants as they do searching alternatives there wouldnt be a need for the climate change hoax.
    bill gates 1 air filteration plant cleans the air as well as 30 million trees .
    burn coal for thousands if years at dort cheap cost.

  31. I had a friend (from Nasa) tell me cooling takes place during evaporation….🇺🇸🧠😎
    How I survived triple digit heat for 3 years

  32. All fine and dandy, but power prices are skyrocketing, either way the end user always gets the short end of tye stick.

  33. Bloomberg please dont use these dizzying effects in your future videos. No need for so many cuts and visual effects.

  34. I used to think my ideas in my head are stupid untill I saw the second part of this video. It gives me hope.🤣

  35. First step to reducing energy for cooling should be air sealing! Build better and seal all new construction residential and commercial. We already have the ability easily cut energy for cooling by 30+% via better building and air sealing. Most homeowners and businesses could easily cut energy bill by 30-50% with minimal investment and quick return on investment. Yet we don’t talk about that because it’s not a brand new 5-10k ac unit lightening your pocket and fattening corporate America’s pocket.

  36. There's this another guy working on similar project. Just type "Revolutionary Air Conditioner" in YT search and check that I think that need to be added in this list..

  37. The title and thumbnail is clickbate, its just films giving out radiation not rocket science, how is it space tech!

  38. SUPER MISLEADING VIDEO…..THEY AREN'T USING SPACE TECH AT ALL!

    They are reflecting the energy back to space with mirror surfaces that's it!

  39. There is a company in Colorado (Coolerado) that has been making water-based (high tech swap coolers) air conditioners (and selling them) for over a decade .. they're primary for dry climates, but they do have a hybrid pre-cooler to compressor (conventional) A/C to extract the moisture. Reflection (of heat) has also been around for decades white/light colored roofing materials or shade sails; even trees/leaves that capture heat/sunlight for photo synthesis. The reflection product shown has one (major) flaw, that the surface needs to be kept clean .. keep working on it, but show some real, new tech next time

  40. If we can control the other layer of the earth we dont need all this the problem is we are letting in too much sun and anyway

  41. WTF!? Who was the researcher for this piece?? The first one is just an evaporative cooler (swamp cooler), and the second one is just some mirrors, you can't actually extract the cold out of that system because the delta T is far too low.

  42. Have you guys ever been in a forest? If so you probably noticed that inside the forest the temperature is significantly lower. So the most obvious thing to do would be to just grow more forests and our planet will get cooler again, plus we avoid a lot of erosion, because the roots of vegetation keeps dirt on it's place.

  43. How many Tons of Air do you expect from a panel? Nothing specific here in Math at all. More bullshit in circles like climate change. What are they teaching these idiots in school now? All these morons think they will re invent the "wheel". Evaporative cooling will never handle latent heat!

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