NASA’s New Breakthrough: The Future of Cooling

[@ZirothTech]

Thanks for watching! Protect yours and your families privacy and support the channel by getting 20% off DeleteMe at joindeleteme.com/Ziroth

[@iamdmc]

Stop with the clickbait. I have to unsubscribe from you because you over-exaggerate everything

[@DJJonPattrsn22]

@@iamdmc Agreed!!!

[@palpytine]

Reducing humidity isn't a "side effect", it's the original purpose for which air conditioning was first invented. But obviously people loved the cooling affect as well and that's what really made it take off. That removed water can also be used to improve efficiency, by spraying it out in atomising jets over the "hot" radiator.

[@eriklondon2946]

Correct, as some of the first ever were called Swamp coolers. Now anyone thats been to a Home Depot in humid southern part of America knows, that Home Depot uses Swamp coolers, but they don't work during summertime...(when you need it the most) due to their being too much moisture in the air, inhibiting the swamp coolers ability to work.

[@tomholroyd7519]

Dr. Gorrie is known for wanting to help his patients in Florida stay cool, but he is also known as the inventor of a machine that makes ice

[@DJJonPattrsn22]

"Original purpose" (alleged) of A/C technology is NOT the current topic! Within the present context focused on lowering temperature, humidity reduction can be reasonably seen as a bi-product or side effect.

[@marcwolf60]

I think it was a color printing mill that found the ink smearing on the paper.. the problem... Humidity. Reducing the humidity fixed that.

[@chip2373]

The challenge for retrofitting is that the device with all of the micro channels used to centrifugally remove water droplets will cause a great deal of resistance to air flow. The blower motor may not have enough power to maintain proper airflow and may require replacement with a larger motor and fan or blower. An advantage of working with OEMs is they can design in that extra capacity to overcome the air resistance. Many homeowners unknowingly put too restrictive of a furnace filter in their HVAC systems thereby reducing airflow and efficiency.

[@InfernoVor]

Yeah, it's quite an obvious flaw that I doubt why he didn't even mention it. I don't even work with airflow or similar systems, but my first thought was "won't it congest airflow? Did they solve it? Why didn't he mention it at all?" Mentioning it was made by NASA doesn't make me more optimistic since physics in space working on earth is a whole 'nother animal honestly. While the principle is the same there are different things to consider that might wildly affect the outcome.

[@flow5718]

For whole home HVAC systems, it can be easily retrofitted, unlike split or window units. You upgrade the fan in the ventilation intake if needed and slap this thing downstream of the dust filter.

[@InfernoVor]

@@flow5718 it's still weird he didn't at all touch upon it. Anyone who even somewhat thinks about it will have doubts about how it influences airflow.

[@FractalOmniverse]

The restrictions through the little tubes is crazy. Why not make a big long tube??

[@xeridea]

I would recommend they make a standalone device that is just a highly efficient dehumidifier. This would essentially be giving the same benefit, and anyone could just go to the store and buy one...., or multiple for a larger house.

[@ManOfSteelePV]

As an industrial refrigeration professional i wonder what the cleaning of something like this would be on a large scale. Like you out this on a 100,000TR RMAU, how does the water get out of the tubes? If it doesn't get out quickly that becomes a huge sanitation problem. How would you clean out the tubes so that nothing grows in there?

[@The8blackwidow8]

Exactly. Thats the difference between concept and real life. The first 80% are easy. Its the last 20% that kills most of them

[@davidestabrook5367]

To keep the tubes free from microbial growth the options would be to coat the microtubes with a layer of copper, or silver. Designing it so that some of the recovered water from the liquid desiccant, gets pumped through the channels, that would also help. Those channels will get clogged with dust, so they will need to get flushed out. Designing it to happen automatically, will use up some of the saved electricity, but it needs to happen to keep them functioning.

[@ManOfSteelePV]

@@davidestabrook5367 I have not a clue how you would pump that water through the tubes. Also those coatings are against code for ammonia refrigeration if I remember correctly.

[@iamdarth8393]

If only there was another fluid being pushed through the tubes that would continually displace the water from the tubes. Maybe something like the air that the water is being separated from? These tubes are continually having air pushed through them, water accumulation within the tubes wouldn't be an issue. As noted in the video, this was tech developed for use in space, the types of sanitary and maintenance concerns you raised would have been design constraints from the beginning. The issue that comes to mind for me (which likely would've been outside the original research scope) would be large contaminants (i.e. sand, landscaping debris) that might block tubes over time. But the tubes appear to be ~mm scale, so that may not be a significant issue, as particles on that scale aren't easily wind carried or could be filtered with mesh screens that could potentially be oriented at an angle to allow the particles to fall away when the unit cycles off.

[@davidestabrook5367]

@@ManOfSteelePV Copper reacts with ammonia to form copper hydroxide, and silver reacts with ammonia, to form an ion complex, so it makes sense that refrigeration units, with ammonia as the heat transfer liquid, should not use copper or silver tubing. But in this case, it's just air that goes through the micro tubes, so either would work well, as they wouldn't be exposed to ammonia.

[@hardwareful]

Why would OEMs turn down a technology claiming to save 50% in electricity? Isn't that strange... Helix Earth claim "The Helix MICRA™ unit pre-dehumidifies supply air, substantially dropping the load on the existing unit and lowering power needs by 50%." Note that this helix filter structure only removes droplets, whereas the 30-99% rel. humidity that is non-condensing still requires a whole lot of energy to remove. That's the latent heat of 2230 J/g. Sadly, the video does not really explain the actual solution to the energy problem other than hinting at what is effectively latent heat storage in a thermal battery. I'm missing the total system analysis here. Surely it could be cool to drive off the water from a hygroscopic salt solution directly (solar thermal), but that is not what is being shown in the experiments or on their page. From where it stands for me, this is a "spend a few percent more energy on ventilation to overcome the filter flow resistance to be able to split off latent load from a purely electrical heat pump application into a combined heat pump + solar thermal evaporation" setup.

[@MrMrFlyPuppy]

It's the desiccants that remove the most moisture. Some desiccants are like the movies really... where it drys a body out to a mummy in minutes like in the OG CSI show! Guess that's a gruesome image but the liquid desiccant that is mentioned (and is under wraps- proprietary) is where the humidity gets removed. This is well established tech but maybe they found a better formulation of a desiccant that is more effective or something but this tech works (I speak of the science, not Helix in this), so it works but desiccants are very corrosive and can be dangerous, the expense of adding to existing systems, maybe high maintenance for the "filters" whatever they are for, etc. mean the tech from Helix may need some more time to get the kinks worked out (if its possible)...

[@chesimons8862]

As someone who has lived in some of the driest and some of the wettest places on earth, I can safely say that the main point of aircon is humidity control. Evaporative in dry places to bring the humidity up, and vapour cycle in wet areas to take the moisture out.

[@tomgunton]

The filters will get full of particulates quickly, especially in sandy and dry climates like Dubai. Also those impellers aren't designed for extra load on the bearings that a filter would cause. Vapourware.

[@flow5718]

This is a little reductive, ventilation intake in dusty places like Dubai already should have a filter. Placing this downstream of the filter would increase the drag and may require replacing the fan but should not have any additional challenges. As long as the filters are cleaned regularly this thing wouldn't need to be serviced/cleaned.

[@realvanman1]

Removing humidity from the air is why it's called air Conditioning, and not just air Cooling. You want the humidity removed! So it is not wasted energy. A more efficient- and still reliable- way to remove the humidity would be quite a substantial benefit. That helical moisture removal technique sounds really neat!

[@darthsirrius]

As someone who lives in Phoenix, and has noticed our "dry heat" summers change into "humid as balls" summers, (thanks climate change,) I'd love to see how easily this can be added to residential AC units. Especially since my home has two of them, and saving energy costs in the summer would be amazing. Even if just adding the filter makes a difference, as opposed to an entire liquid desiccant system.

[@flow5718]

Why does your home have 2 of them, for redundancy? That's pretty "cool", HVAC companies charge an arm and a leg to come out during the summer. You can easily retrofit this or a liquid desiccant system for your current ventilation intake. Since you live in a hot place, heating the desiccant should be free at least during the day, or you could run the line near to the condenser coils and put that waste heat energy to work.

[@darthsirrius]

​@@flow5718Well I'm lucky enough to own a, fairly large, two-story house. So there's one for upstairs and one for downstairs. Thank God I have solar, otherwise the electric bill would be $700-800 PLUS, a month in the summer.

[@DoNotEatPoo]

If you set your thermostat to 96 degrees, your electricity bill will be $40/mo. You'll get used to the heat. I have.

[@davidestabrook5367]

It's the energy cost of recovering the water from the liquid desiccant that concerns me. There's lots of desiccants, but usually drying them requires an oven, and a lot of electricity. I'd want to see how they're doing it, and how many watts the desiccant regeneration cycle takes. Also, how long it can run before it needs another regeneration cycle.

[@starsoffyre]

Precisely. Can't run away from thermodynamics. The adsorption energy needs to come from somewhere

[@willmorgan6867]

The energy comes from the heat being removed. Liquid desiccants don’t need such a high temperature to “dry” out. Silica gel can do this as low as 25c, for example.

[@bigfishoutofwater3135]

So the centripetal force could compress the air which can reduce the amount of moisture the air holds. However, compression also heats the air which increases the moisture it can hold. Perhaps the small channels and high surface area are to promote cooling the compressed air back down towards ambient temperatures. In gas form, the water molecules displace other air molecules that are heavier making air with higher humidity less dense. The less dense and more humid air would tend migrate towards middle of the spiral due to the buoyancy. On principles alone, I'm not convinced this design would be all that effective. Using compression and cooling down to ambient is still generally an interesting approach but I'm not sure if the energy savings on the latent heat removal would offset the energy needed to compress the air. I suspect the desiccant is doing most of the work.

[@aeonturnip2]

I was taught that humidity is water vapour (i.e. the gaseous form of water) in the air, not water droplets (i.e. drops of liquid water). That helical process won't filter out a gas.

[@tgeliot]

This is just a wild guess, but water molecules weigh less than air (nitrogen & oxygen) molecules. Suppose the centrifugal force separated the water molecules enough so that they were above the saturation point of the air, causing them to condense into micro droplets. Those micro droplets would then be heavy, and would be slung out, again be centrifugal force. Mmmm, no, I don't believe it, either 😅

[@agnelomascarenhas8990]

Think of clouds, it's an aerosol. We know that because of the gray color from Mie dispersion, implies it is particles larger than 1μm. Aerosol is liquid phase dispersed in gas.

[@tgeliot]

@@agnelomascarenhas8990 What are you saying is an aerosol? The humidity that most of us deal with is vapor.

[@c0nct3d]

@tgeliot But water molecules are lighter, air is N2 and O2, water is H2O ​

[@tgeliot]

@@c0nct3d Yes, we agree that one individual water molecule is lighter than one individual molecule of N or O. But water molecules can condense together to form droplets that are heavier. But truthfully my speculation here is just shooting the shit, I have no idea what's really happening.

[@MrMrFlyPuppy]

I am curious,(and I am going to go see the info they have on their website, but) my question is with regards to what happens with the water produced in this process? Is it simply being drained out as is normal (but wasteful) in A/C evaporator drains? They sell water generators for the roof top now (gimmicky in my thinking) and these are essentially heat-pumps for "atmospheric water generation" which work but use more energy than an equiv. sized A/C (you could just pipe off your evaporator drain to a storage tank instead, lol). If this tech is really able to remove moister from the air as liquid water in the amounts they claim (humidity reduction claims) , then this is potentially a dual benefit system for places where clean water is scarce. If the airflow through is filtered, the water produced can easily be made drinking quality... I have ideas for this tech area if you would like to talk, let me know. Thanks for the report!!

[@TerryE-UK]

Eh? Physics check. Yes a centrifuge can remove droplets, but droplets are (as the name implies) already in the liquid phase and so don't need to go through a phase change during cooling. Water _vapour_ can go through a phase change to liquid, and it _has_ to go through a phase change dumping latent heat into kinetic heat to do so. No free lunch.

[@nts9]

An evaporative Air Cooler is far less energy intensive than a air conditioner but they need dry air to be effictive so how about drying the air and then running it through an evaporative Air Cooler?

In domestic AC sensible to latent is about 30% in favor of latent! Therefore, maximum teoretical increase in efficency by reducing humidity with that system is 30% Dubai is not representative for most of situations.

[@KarrierBag]

I have 2 small dehumidifiers running on my boat that I live on, otherwise the damp build up is crazy during winter time.

[@JMhamp]

I appreciate that there is savings on the compressor load, but is it enough to offset the additional fan load?

[@0005yuki]

this genuinely seems like it has lots of potential

[@no_rubbernecking]

I have a better idea. Install a network of underground ducts that branch out to each structure. Have the trunks surface in locations that are relatively cool for the locality. Make sure the input end is well insulated from solar radiation. Put air filters at the input end. Structure owners simply have to hook up to this ductwork with blowers. For added effect, connect systems together east-to-west, with each locality pulling from the systems to its west and contributing its air to the systems to the east. (And vice versa when needed.) A bit of a kink to work out is the drainage or extraction of condensed humidity underground, but i'm sure it's not all that difficult in most cases.

[@flow5718]

This is already how ventilation is designed in most places, sometimes like in a crowded city there isn't any good spot to get cool air though.

[@no_rubbernecking]

@flow5718 Understood, but i meant for the lines to be long enough underground so that everyone can get a good amount of cooling. In some cases, customers could need to supplement with a private system, and in those cases they should naturally pay less, according to how much warmer their air is over a baseline. Also by connecting to other local systems that could be many kilometers away, or perhaps by circulating deep seawater for heat exchange, large cities could augment their cooling. Overall, i think this is where we're all headed. Rural or exurban properties might have private systems that do the same, as such systems are already in use on a small scale here in the U.S.

[@no_rubbernecking]

Another thing that's just occured to me: in dense urban areas, to further augment cooling, have the customers sell back some of their return air so it can go back underground and continue to other customers. Not all of the return air, though. Some still needs to be vented to the roof. And actually, the most efficient way to drive the system is to put one single blower at the roof, at the point where all the exhaust ducts converge. When it turns on, if all doors and windows are closed, the community A/C will blow out each open supply vent as if it were pushed, when it's actually being pulled. For more volume through a given room, simply install more exhaust vents in the ceiling of that room. Flow is from down to up as the air warms, thus minimizing energy input needed to move it through the structure.

[@ethansloan]

This sounds too good to be true. So it probably is.

[@TrevyBurgess]

For Dubai, this will give them a cheap source of drinking water. I wonder why they aren't relying on humidity condensers?

[@rainman7992]

Why not make the roof a covering for a structure we live in. This way, the covering gets hot, but shades the structure providing, not an attic space, but a deck space - covered, of course, plied with solar panels, the rest painted white. lot less need to cool yourself in the shade than when you build out in the sun

[@PeterDMayr]

This helps for sure. The cost of insulation is still high in 3rd world countries. Most people in countries in the tropics can't afford triple glazed windows too. Governments who own utility don't care. Politicians are corrupt by industry (& surely a/c companies). Fix that first.

[@kimholder]

I really appreciate your effort to weigh things scientifically, not based on the company's press releases. Your graph predicting 3x increase in AC units is flawed though. Adding up the numbers at 2020 shows about 2.8 billion units, and at 2050 shows 4 billion. That's about a 40% increse. That's an obvious mistake that should never have happened.

[@tinka831]

At the bottom of the chart, you can see that it comes from the Our World in Data web site, so hop over there to see the original graph, YT does not allow links. The graph on that site is interactive, so it is possible to get the breakdown of each country as one scrolls over it. The graph is a stacked chart (it should have been filled in solid colours), so we don't need to add it up, the actual numbers are in between the previous line and the current line. E.g. China would be 730 million units. See the total above each line - 1.90 billion in 2020 and 5.5 billion in 2050, those are the actual totals. There is some rounding up involved, 5.5/1.9 = 2.89 ~= 3.

[@benmcreynolds8581]

I love to see this type of adaptive advancement BUT we gotta just start doing stuff NOW! it's taking way too long to get anything going and we really can't keep twiddling our thumbs around this kind of stuff. We just gotta do it!

[@CountJayeAndTheHardBeats]

If rather have it dry than cold. In fact I always run my ac on DRY.

[@Corfal]

I'm confused by your sentence. A/C's usually cool and dry out air. If you're just drying the air, that's dehumidifying. If you're cooling and adding humidity, you probably have something similar to a swamp cooler. An air conditioner that has an evaporative cooling component turned off, is just a fan. Which type of a/c are you referring too?

[@gameonyolo1]

​@@Corfalsplit units usually have a "dry" mode. Essentially it runs the fan at a minimum setting and then runs the compressor at whatever speed gets the evap the coldest without freezing.This is probably most useful in a humid environment where it's not too hot. It does differ from AC on low in that if you have a set point (70°f) and on low fan speed the compressor can run at 50% speed (splits are usually variable compressor speed and fan (inside and out)) but the 50% speed might not get the evap under the dew point and theirfore only cool but not remove absolute humidity. Dry mode set to the same temp would run the compressor at let's say 80% to get the evap to 35°f and pull out water. The compressor would then run a 65% duty cycle) or whatever.

[@CountJayeAndTheHardBeats]

@@Corfal I mean the "dry" mode. I guess, it focuses on drying rather than cooling and uses less power. I'm no technician, just user.

[@Corfal]

@@gameonyolo1 neat, so it effectively would work as a dehumidifier?

[@pete_dl1585]

Most of the air cooled down by an AC has already been through the AC multiple times and thus already dried out. The performance improvement you quoted must assume a rate of ingress of outside (humid) air. What is this rate ?

[@flow5718]

That depends on the ventilation, more people = more ventilation. Also, just like pre-cooling your home before you come home after a vacation you can pre-dehumidify the air so that the initial cooling load is reduced. Very useful for peeps who travel a lot for work.

[@ManOfSteelePV]

This depends heavily on the application, some industrial applications require 20 air changes per hour within the room but for some buildings, like say an office building it can be as low as 3. But if you have something like an industrial freezer there will be no intentional air changes so fresh air only comes in when the door opens.

[@starsoffyre]

I had a research paper published several years ago on using Metal-Organic Frameworks with an embedded polymer that undergoes a phase change from hydrophilic to hydrophobic at 32 deg C. This allowed very low regeneration temperatures and it could absorb over 400% of its own weight in water vapour. This was from my final year project at Uni though, I believe there's now commercial collabs with it though I'm not sure what subsequent work was done.

[@MattThomas-p2x]

Not just air conditioning but heat pumps could also use this technology when extracting heat from outside air. If the water vapor could be eliminated or reduced it would decrease the number of defrost cycles the heat pump needs to perform as well as increasing efficiency..

[@aeonturnip2]

<a href="#" class="seekto" data-time="348">5:48</a> This graph looks wrong for 2020 and therefore the multiplier of 3X is likely wrong too. The number of AC units can't be 1.9B as it looks like China has 1.2B, India has 0.9B, USA has close to 0.5B and Europe and Japan together have close to 0.5B. This totals around 5M.

[@tinka831]

It is a stacked chart, not a regular chart. China has only 730.2M, India 47.4M, USA 399.5, EU 115.3, Japan & SK 218.1M. It is from the Our World in Data web site, you can see that on the lower left of the graph.

[@Vort_tm]

I'm sure this is something they've already engineered around, but I would have liked to see it addressed as I'm curious: How does the Helix system deal with particulates in the air? It seems like condensing water from air with particulates in it would gum it up real fast.

[@realvanman1]

Just because a technology is "old" does not by any means mean that it is "bad". That's not to say we shouldn't always be looking for better ways to do things. This is what healthy competition is all about. It's just that thinking that we are somehow "smarter" than our predecessors is a fool's errand. Always look to learn from those who came before us.

[@LokiScarletWasHere]

"Can be retrofitted to existing systems" Yeah sure. Maybe if you're talking about only retrofitting in industrial AC. Firstly, that helix filter would surely increase air restriction. Second, the helix filter would absolutely need to be located where the condensate is collected. Putting that in an air return with the air filter would be asking for mold. Home systems using the helix filter would need to be designed with it in mind.

[@loiskimberleyplayer]

This is so cool. I had no idea air con was such a huge contributor to emissions! Thanks for a super well produced, accessible video :)

[@Rene-uz3eb]

I think you got it upside down, the condensation phase change doesn't need energy, it releases energy so you need more cooling. Also I think chilled water cooling systems already avoid the condensation problem.

[@GerbenWulff]

The first technique to remove water droplets from the air might be widely applicable, the liquid desiccant is probably only useful in very large installations. It's more complicated and expensive. Just using that first technique is not going to have a major impact on the energy consumption of aircon installations. I wonder if this can not be applied in the exhaust of ICE vehicles. The captured water can be used for water injection, which improves engine performance and efficiency.

[@thinktoomuchb4028]

Very interesting. Thank you. There are several technologies that don't use refrigerants you might try investigating. There were 2 companies I thought would be releasing thermoacoustic heat pumps this year, but I haven't heard anything lately.

[@gefginn3699]

I enjoy and appreciate you and your channel/efforts. Please consider looking into the various sources trying to engineer gadgets for extracting water from the air marketed as a drinking water source for water scarce regions of the world. A long while back I saw a video showcasing research at MIT using a metallic/ organic interface that showed potential using solar for the catalyst and only a small amount of electricity to drive a fan to move the air through the system. Of course there are other projects doing similar things but it's all very interesting and WILL Become Very Relevant/ Essential in the coming years.

[@tiagotiagot]

I would like to see a comparison of the total power consumption with and without their add-on system under controlled conditions

[@PeterDMayr]

But as temperature rises, humidity is being removed from the air. There is low humidity in the summer.

[@foobargorch]

<a href="#" class="seekto" data-time="480">8:00</a> that doesn't track, if the phase change is the energetically unfavorable part then the water is in vapor phase, not droplets, and therefore would be lighter than most air molecules

[@rickrys2729]

Humid air does not have water droplets to filter, when the air is above the dew point. Desiccant driers using Silica Gel, Alumina, or Mol sieves, are nothing new and can make air very dry. Sure cooling dry air uses less energy but what is the cost of energy to dehumidify?

[@christopherd.winnan8701]

Pls do a deeper dive into the helical gravity condensation process, maybe with a few example experiments? When will get to see STLs for their 3D printed filters?

[@ManyHeavens42]

Innovation is the mother before the father,

[@GL-GildedLining]

Inspiring and reassuring. With or without manmade warming, the globe is expected to get hotter just based on extrapolating ice core data, so we're gonna need all the cooling tech we can invent!

[@nathanflowers7364]

This could be combined potentially with electro caloric effect to create a solid state ac system that uses air as the only fluid in taking and exhausting air into a space with 2 stage dehumication or whatever you called it and then electrocaloric cooling

[@WaffleStaffel]

Sounds like a gimmick. In the intro, they talk about how awful and inefficient liquid desiccant systems are, yet their system uses liquid desiccant in the second stage.

[@sportsmad3278]

The graph you posted showing a 50% increase in efficiency is not correct it's more like 5% in a place like Dubai

[@droko9]

Skip to <a href="#" class="seekto" data-time="458">7:38</a> for the explanation

[@jarkkoaitti287]

So the "thing" in this is good old air-liquid centrifugal separator, tech from, i don't know, before you were born? I think i have one in my air compressor, some of them use a vortex to do that. How long did you actually research this? I found these things out in few minutes, about 1/5 of the time it took to watch this video to find the sauce.

[@williaml2345]

That's interesting in the cooling load. But would the reverse be true? In michigan where I am at my heat pump uses 3 times more energy monthly to heat than it does to cool. Thats not a scientifically derived ratio. Just heating and cooling the house to my preferences and observing the electric bill. They may get their benefits in the cooling load, but what about the heating load?

[@FredPilcher]

Brilliant! Bring it on!

[@o_-_o]

<a href="#" class="seekto" data-time="317">5:17</a> If Rasheed is serious about his mission then ACs won't cost lot more with his tech. Even a free patent would be great. No hypocrisy would be nice.

[@Zso-VIII]

Hopefully the advancement of photonic chips will lessen the global heat-dispelling requirements of computing.

[@ianhaylock7409]

I don't see how this works for window or split systems. It would be way easier to just put a dehumidifier in the same room as these types of AC.

[@olavaanderaa2803]

Removing the liquid drops in the air will not remove the cooling load for condensing the water vapor; this seems just nonsense. Or perhaps I have misunderstood?

[@carlg5838]

At <a href="#" class="seekto" data-time="350">5:50</a> you say 1.9 billion A/C units in 2020, rising to 5.5 billion by 2050. But reading the graph, the countries listed would actually add up to around 2.5 billion units in 2020, rising to about 3.7 billion by 2050 - that's less than half the 3X growth stated. And the graph only shows units for certain countries! How does excluding Mexico, Central and South America, Africa, the Middle East, Southeast Asia, and Oceania - billions of people, mostly living in hotter climates - add up to a global total of estimated A/C units? Especially when they're a large part of the developing world you went right on to say could fuel strong growth in units in the coming decades?

[@tinka831]

It is a stacked chart, not a regular chart. China has only 730.2M, India 47.4M, USA 399.5, EU 115.3, Japan & SK 218.1M. It is missing Mexico 20.9M, Brazil 29.0M, Indonesia 20.6M, and "the rest of the world" 291.7M as you say, but these missing countries add up to the level of the black box labelled 1.9 billion. The totals are 1.93B and 5.58B, 5.58/1.93 = 2.89 ~= 3. It is from the Our World in Data web site, you can see that on the lower left of the graph. The original chart can be found there. 🙂

[@PlumSack-f7p]

Damn, Ziroth sprukes viable technology for once

[@MarkLohde]

Appreciate your videos!!

[@alexmannen1991]

does this mean i can finally underpay my hvac guy

[@thamiordragonheart8682]

I have to wonder if this is actually an improvement over just spending that money on air sealing and energy recovery ventilation. I suspect it isn't.

[@paulcarter7445]

How can this system be used in space where there's no gravity to collect the water ? Sounds like this system requires waste water removal which will be an additional expense.

[@Draxis32]

This is just old tech repasted and renewed. You gotta stop posting these kind of stuff Ziroth. It's basically a marketing strategy for a dehumidifier. But AC's already have something like this. There are little innovations in this area because the general purpose hasn't changed in a century. The only thing I've heard about in the past few years was an antenna that inefficiently converted some heat from AC units into microwaves that can be shot into space. But again, extremely costly and inefficient

[@chuckles3265]

Tell me you don't know anything about air conditioning without telling me you don't know about air conditioning.

[@SirHackaL0t.]

Sometimes I wish that youtubers would just get to the point instead of waffling to drag out the length of videos.

[@usuarioenyt]

Humidity in Dubai? Isn't it a desert?

[@HwSystems]

I will believe it when I'll see it in action but I have a strange feeling it will be never.

[@FullCircleTravis]

If it was efficient, they would generate fresh water with it.

[@aeonturnip2]

I'm expecting @Thunderf00t to jump all over this one.

[@TTTzzzz]

Best idea yet: reduce and shut down carbon and methane emissions.

[@realvanman1]

I'm a little confused (sarcasm)- how is air conditioning is responsible for so much global carbon emission, when it runs on electricity? They are pushing electric vehicles as a solution to... global carbon emissions. If electricity generation causes so much global carbon emissions to run air conditioners, how does it not do the same to run electric vehicles? They can't have it both ways. Something mighty fishy is going on here.

[@juliahello6673]

There are two factors. 1) Electrifying 2) Efficiency This product addresses #2.

[@realvanman1]

@@juliahello6673 Agreed. My point is that we should be working on "decarbonizing" the electricity supply first, THEN work on switching existing non-electrical technology, such as vehicles, to then run on electricity. Doing it the other way around is wasting time that (some say) we don't have a lot of.

[@juliahello6673]

Different people are working on decarbonizing the electricity supply and switching existing non-electrical technology. You won’t save any time because the people who are working on switching existing non-electrical technology would be sitting around twiddling their thumbs, not helping to decarbonize the energy supply.

[@ravenmad9225]

Cool video.

[@NoHandleToSpeakOf]

AC does not emit CO2 because it uses electricity. You can produce electricity without emiting CO2, so do not bunch it all up together and do not mislead the viewers.

[@DJJonPattrsn22]

@ZirothTech WOW! You did a great job of undermining your own credibility in about the last minute of the presentation...

[@ap9396]

Fantastic video, fascinating technology. Can you look at solid-state cooling technologies and thermoelectric peltier effect cooling next please.

[@charliebaby7065]

This is ancient middle eastern And someone else patented it Oh yeah I think that is him But there's a big difference between a him patent and a NASA patent Such as free public use vs not free (NASA tends to grab patents to ensure they remain open use)

[@craig3916]

not really a breakthrough, new or unknown, essentially fiddling around the edges n efficiency changes that all things go thru plus the usual marketing speak to sell sell sell

[@GiesbertNijhuis]

Cool

[@realvanman1]

The world is going to need a lot more air conditioning because, A) fewer people are willing to go without it (don't blame them!), and B) humans are (still!) breeding like rabbits. The world being a couple degrees warmer as a cause is a DISTANT third compared to these first two. Although the first two definitely exasperates the global warming.

[@dumisanisibanda7772]

Micro dust.... ?

[@MrDhalli6500]

liquid desiccant, two words that should not be used together. If it sounds like magic...

[@mrxmry3264]

reminds me of a video by tech ingredients: /watch?v=7w4rg3UcsgI they built an air conditioning system that can run on 100% solar energy (1 big PV panel should be enough) and only uses water and calcium chloride. no nasty chemicals like CFCs (regular heat pumps) or hydrogen and ammonia (propane fridges)

[@TeslaElonSpaceXFan]

❤❤

[@matthewt011]

isnt heat pumps the future???

[@matthewphair2469]

Like to see the data on making things cooler and the earth getting hotter. We all know that's BS.

[@blt4life112]

If all these commenters are so smart, why are they living mediocre lives?

[@Heiserton]

Air conditioning is a bandaid on the problem. The more effective sustainable change needs to be in the architectural and engineering side of how we build structures. We create massive glass greenhouses that are all but hermetically sealed. We create extremely population dense structures that have minimal to no natural ventilation. We’ve developed methods for cooling air well below ambient temperature via architectural design (wind catchers) and using the correct building materials. A good modern day example is rammed earth structures using passive ventilation and insulation to significantly cool and maintain internal temperatures.

[@lololololol9867]

geothermal better ac I pay noting in power😂😂😂

[@schumzy]

If it was developed at NASA then the original design plans are publicly available. So, unless he managed to develop a new desiccant, if someone really wants to do this, you can find the projects he worked on nd the designs will be online. Thank the US tax payer, when you're done.

[@patrickmckowen2999]

👍

[@laurentsylvestre9117]

Look like a scam... Droplets is not vapor

[@c0nct3d]

I didn't like the video, it seems like you do not understand the subjects enough to present them.

[@nicholaskaralus1904]

So long winded

[@swedishbrainworm]

After 4min of filibustering without explaining anything about the invention i stopped watching. "Klickbait" video

[@iamdmc]

Stop with the clickbait. I have to unsubscribe from you because you over-exaggerate everything

[@jw1548]

I already live in a dry climate. 👎

[@Humble_Merchant]

Video starts at <a href="#" class="seekto" data-time="457">7:37</a>

[@rogerfroud300]

Don't forget the vast amount of refrigerants that unintentionally escape into the atmosphere. Only home refrigeration systems, that are hermetically sealed, don't leak. Even then. much of it is lost when they are scrapped, even though recyclers are supposed to capture it.

[@DavidRose-m8s]

Absolutely amazing.A Nobel for Rasheed.

[@edwardmacnab354]

the thing about air conditioning is that there never used to be any . People have become conditioned to WANT air conditioning not to NEED air conditioning .