I'm from Zimbabwe and I recall correcting someone when I was studying in the US who was making fun of 'mud huts', calling them primitive when in actual fact they have amazing thermal efficiency for the climate they are in. I even gave an example of Eastgate Centre in Harare, the largest shopping mall in the country constructed in the 1990s which naturally cools itself. Unfortunately, I don't think it was enough to convince them otherwise.
They have to make something very very complicated so that they can patent it and monopolise it so that they can make heavy money from a problem. If solution is too simple than how will these people make money.
@adiagy9283 these red clay tiles are seriously saying very dirt cheap in India in facts few plant's closed as no buyers people went for modern one's fancy looking one's these are out dated if I say refrigerator with out power again clay made chek mitti cool sites
I live in India, my grandparents put few layers of limestone powder in the rooftop (it's amazing that they find this solution themselves as they have never went to school, sometimes I wonder how they're so smart). So in summer vacation I went to their house for a few days and it was freaking cool almost like 23°c when the weather was 40°c 🤯
I am also from India and painting roof with limestone powder is well known and used extensively in India. It's very cheap way to cool the roof. Mud houses painted with cow dung is also very effective in cooling home and used extensively in rural India
@Adiagy Mixed with the water and some other materials are also added in it. Then it is boiled at appropriate temperature. Once mix becomes fine paste them it is applied. Now a.days you also get ready made lime paint as well which does same work..
Based in Thailand I selected a bright white steel roof as a "fly-roof" (large open space under the roof) a 5m wrap around roof to keep sun off the walls and windows. An open staircase under the fly roof to allow hot air to rise and escape "stack effect ventilation" Walls are bright white and windows are very small mounted up high under the wrap around roof. Double aerated concrete block walls with foil and foam between. Foam also under the floor and in the ceilings. I am able to power my house and EV from home solar.
I use 12 old large pieces of fabric on coathangers on a clothes drying rack with stainless steel pans below them. By the way the stainless steel pans were bought in Cambodia and they regularly rust through and leak. Every time the rags start smelling of mold I wash them. When they dry out and I feel hot, I shower them with water but not too wet.
I live in a house with a backyard filled with bushes and trees, while the front yard with mostly concrete. I can literally feel the difference of air and temperature. I can have a relaxing afternoon in the backyard at 12nn - 3pm without air condition even when its 95 degrees Fahrenheit.
Us Indians have achieved a lot and I am proud of the contribution on individuals. Sadly, all that talent comes out when such people leave the country. We have a huge brain drain issue, currently in acceleration. No administrations, past or current have done much to slow, stop or reverse this situation. Another point was that USA started funding Trane's idea but India didn't even though such research would benefit Indians the most. There's no future planning, no vision on making India a hub for research rather than only service. There is no guidance - our current government is proactive to initiate disputes about decisions of some king centuries ago, but don't seem to have the time or money for nurturing the talent potential of the common India.
I fully agree on the fact that we should first reduce our needs of cold air during summer with solutions as suggested in the video, but also by a better insulation. As for making our air conditionning greener we have to develop low carbon energy such as renewables and nuclear energy, change the nature of the refrigerant fluid !!
I'm imagining the SkyCool film being applied onto louvres and blinds to passively cool and keep heat out of any window, especially in humid tropical regions where evaporative cooling would just not work. A lot of modern design based on European tastes or temperate climates with giant windows and skylights have been stupidly adopted by architects of equatorial places, making for unnecessary heat gain that ultimately ups the need for air-conditioning.
As an HVAC tech, i can see all of this makes sense, but as anything, there are disadvantages with all this, like the coolers of the market based on water, this works ok only in dry climates where evaporation is easier, and the water consumption is huge. White roofs make sense on only hot climates, you dont wanna use this in the north where they get very hot summers and very cold winters. It will help, but it wont stop air conditioning, we always want 70-75F in our houses.
Paint isn't really a factor in colder climates. In a cold environment, what you want is insulated walls without any leakage points, double windows, and controlled ventilation. Basically, the types of methods used for soundproofing are excellent for preventing heat loss. Radiative losses are miniscule compared to convective and conductive losses.
Only one solution cannot fit all, as a HVAC engineer myself I am always intrigued by what could be the next future air conditioner as the current technology we are using is already 120 years old. Definitely a lot of room to improve. For now I feel we must look towards net zero buildings and sustainable approach.
You're right about some of the disadvantages. However, it's a very American things to only have a 5 degree tolerance window. Almost everywhere else, you just layer and adapt to the temperature. It's only extreme heat or cold that's uncomfortable
eh, when power gets expensive you're not gonna have an option for 70-75f Also, we already have paints/pigments that change color based on temperature, layer the super white paints they've created with the "transparent when warm black when cold" paints and you got something that adjusts to temperature
In Brazil, some people recycle milk packages by creating a mantle of them and putting it on the ceiling with some space between it and the roof. Idk the specifics of it but I went to a house that had that system in the bedrooms but not on the rest of the rooms and the difference in temperature was stark clear
Experts, researchers and engineers have to understand that earthly materials, plants, trees, ways to increase efficiency and reduce energy demands could help solving problems and not the space instruments shielding technologies could help reduce Mother Earth's temperature.
Thats why mud huts is something many people in India and around the world , are rooting for. Sustainable, and we humans beinga a part of nature, its natural ❤💯
I've lived in mud houses in India which have a g+1 kind of setting with wooden ceiling for the first floor. They don't need much cooling even during the summer.
Ever seen Bucky Fuller' idea of natural cooling using cool air intakes at the bottom of any structure and hot air exhaust vents on the top. Very simple concept but very efficient.
In my Village we used to live in mud houses. It's made up of clay, bamboo (for structural strength), cow dung and we use the leftover of Rice crop. We call it Parali. It's quite cold inside during Summers and warm during winters. Though it needs a lot of maintenance but the maintenance isn't costly.
Mud House Can be the Next generation house where you Cool feel . Which can be the Alternative against Cement Culture house which are part of climate change.
Better insulated walls Better insulated windows Reflective roofs Trees Evaporative cooling systems (like at that fish market) Electric cars (fossil fuel engines emit lots of heat and raise the city temperature) Raising temperatures in work places and shopping centers (which are often kept very cold for no reason)
in my city, the energy is mainly produced by thermal power plants and in peak summer days such as now, the energy demand skyrockets because of people's need of AC's. So the authorities came up with ingenious idea to not supply power to commercial players after 7 in the evening and asked them to use generators. This increases the burden on the commercial vendors and we the common people have to pay more. Also, there is the pollution but clearly that isn't the concern for an island city which faces direct threat from climate change and increasing sea level 😅
In the UK, between 30-50% of our electricity comes from gas. I've got solar panels on my roof, and intend to add even more. Before getting solar panels personally, I thought we could perhaps use renewables for the entire country but realistically, the solar panels aren't enough. I still need to pull from the grid It'd be cool then if the UK would replace gas with nuclear instead
Dude! If you install solar panels, you save energy and you else get rid of the heat. Nobody mentioned that here...Also didn't mention mud or thermocol!
Finally an innovation in the cooling industry. I always thought Air Conditioners are not the best product considering the energy used and waste by the system. Really looking forward to see SkyCooler technology more in India at a larger scale
Well, it's essentially the basic system that Carrier came up with in 1901. Imagine if the money the world used in war spending over the last 120 since Carrier's invention would have been used to make better technologies, including AC's... we would be so far more advanced than we are now.
Here in Pakistan, the temperature reaches around 45-50 centigrade during June-July. We usually use calcium carbonate (Chuna) which reflects sunlight and results in decreasing the temperature
Dependency on air conditioning is not a solution. A real solution would be to incorporate nature into buildings and infrastructure, grow more tall trees so the building is in shade, grow climbing ivy plants on the walls and fences, build more passive houses with wide openings so the heat doesn't get trapped inside. Make aerogel insulation popular world wide.
I always wonder as to how implementation of ancient wisdom was replaced in the first place if it works better. Is that because of re-emergence of constraints that lead to the necessity and relevance of such solutions?
The incoming radiation is reflected back at a specific wavelength essentially sending the heat away from the local area. This technology maximizes outgoing infrared radiation and minimizes the absorption of solar radiation.
There is a net energy input. I understand it to work like a heat sink. A heat sink works through conduction. Kinetic energy is transferred from an area of high heat to lower heat. A material like this works through radiation. Infrared energy is transferred from a hot medium to an a medium with low infrared energy.
Every material absorbs or reflects specific wavelengths of light. If the material absorbs a certain wavelength of light it can emit it too. We receive most energy, from the sun, in the form of visible light. This is the light wavelengths you get if something is 5000° Celsius hot. This light can either get reflected or absorbed. Dark objects absorb visible light better than white/ reflective objects. So dark objects gain more energy from sunlight (heat up more), while white objects reflect that energy more (don't heat up as much). Objects on earth are around 20° celsius hot. This means they emit light at infrared wavelengths if they are able to absorb those wavelengths of light. If you want to get a material that keeps cool easily outside, you'd choose a material that reflects the visible light, but emits infrared light. It kinda ignores the sun, while it can loose its heat quite well. No energy is created or deleted, entropy still goes down overall. The energy just goes back to space better.
im so glad we're re-finding these cheaper and less energy intensive solutions, but i just find it funny that for so long we just assumed our ancestors just boiled away in the heat and didnt do anything for thousands of years to try to make temperatures more bearable. maybe they knew something through sheer trial and error about building comfortable places lol
Bosch Building uses 3 stage cooling system which reduces the humidity by providing chiller water at dew points - degree .. especially plants near sea .. but office air cons can be controlled by VFD systems ..
This summer has been very harsh in India with some parts recorded upwards of 50 degrees Celsius. It amazes me how such a big problem of heating is crippling at least half of India and yet we are not doing any advances for sustainable solutions. Everyone installing ACs only make things worse for ambient temperatures. This is wake up call and we must act now.
Wow, those are really interesting solutions! I love that they use no power to work. I also love the district cooling that is happenening where cool ocean bottom water is circulated through the city just. I know Hawaii is doing a little of that as is Toronto
Apart from roof coating, air conditioning systems should use induction/solar heating with adsorption based cooling for getting over all minimum energy consumption. Unfortunately, these type of AC systems are not being given adequate importance by manufacturers and policymakers.
5:00 In order to make a dent on cooling demand, how about cities stop building so many highways and car infrastructure? Cities are getting super hot because they are getting filled with concrete everywhere. The only reason this video never touches that subject is because it's sponsored by GM. Architectural optimization of buildings is nice and everything, but the most obvious solution is right there in plain sight.
I've been hearing about Skycool off from many content creators for months. The technology they have is absolutely incredible and the way how it works it's just amazing
I think the reason why Spain don't want anyone to put air-conditions below 27 degrees Celsius is because, they want to conserve electricity and control the climate.
First you keep vehicle in shades and then you have added a roof to the cart definitely it will reduce the temperature. You need to test it when shade is not available and hot sun rays coming from an angle than vertical then efficiency of this product needs to be tested
But still my question is y Bloomberg never reported any news of US bank falldown but we interested in other countries affairs to weaken there businesses and economy
i blame it on the "architects" who care more about looks than function- with no concern of location/sighting/orientation. in much of the sunny usa you will save about 15% of your heating coolling costs by just orienting the long side of the building South. then there is placing most glass on the south side, plus adding moveable window insulation systems to every section of glass. more insulation is needed as well and shading via plants on the north, east and west sides. and more simple things like ventilation.
In conjunction with. Rather than just running off of the air, by hooking to a radiative panel that is cooler than the air temp you get savings when cooling is needed.
@@AlanPeery So like a water source heat pump with condenser water loop using the skycool panel as heat rejection units and the heat rejection purely via radiation? Interested to see how this compares to a condenser water loop connected to a dry air cooler or an adiabatic unit in terms of EER and roof footprint required per kW cooling. 🤔
Sometimes I feel that all that heat and humidity is for the plants to grow. Since that balance is off , it's trying to fix itself but we aren't allowing it. So till it achieves that target, nature won't stop. Just because something is old (like an older technology) doesn't make it outdated or primitive. If it's survived long, it probably means it still works. Our ancestors were not dumb. Learn from those lessons. They used naturally available resources and live in harmony with nature.... Not create new problems and solutions that create even more newer problems ...
I don't know why when it comes to reverse cycling units on standard homes we don't take advantage of the earth's cooling.. 6 feet down the earth is a constant 24 degrees C, why not on hot days have the outside reverse cycle unit instead of letting all that hot air go into the atmosphere, why not have it run underground through a duct line to cool down to 24 degrees first?
With all due respect, I believe the cooling film is just a publicity stunt for investors. I have read about it a few years ago, such a remarkable technology should have been available on the market right now and still here we are and there is nowhere you can buy this stuff. For comparison, the Chinese successfully developed viable sodium ion cells and got them on the market in less than 2 years. However, you should have mentioned radiative absorption cooling which works by having vacuum tubes placed in a place which you want to cool and they absorb the heat making it 50% more efficient than standard AC because there is no need for de humidification. This can be done at home using standard chillers and vacuum tubes.
Reflective roofs decrease precipitation by 4% (less rain). Green surfaces (i.e. mother nature) absorb heat... allowing moisture from vegetation to evaporate into the atmosphere. We can make it worse by continuing to replace grass lands with concrete (reflective or not) and by creating more synthetic man-made top surfaces.
to distribute medicated camphor derivatives to zones facing persistent heatwave attacks. even under direct sunlight, exposed skin on camphor or alcoholic medicated oils does elevate the senses with relieve, at the same time detours the mind of the experiential expression of the heatwave allowing the self to resume the normal state of thinking all together.
Radiative cooling is not at all effective. Most of our room heat is due to hot air, not direct heating by the sun. You need a closed off system to cool it by radiative cooling.
I have travel to these places and people still live people still survive and some families you can see that sadness does not encompass their daily routine If you go to the buildings where people have to walk up many stairs to get to their house they don't leave their house very often Anyway there's nowhere to go even if they do. Very few people have jobs. Lack of transportation People live in and congested cities find it much harder to gain employment So most people create their own employment. Others just take
Nothing beats trees. Cut away the most efficient solution that evolved over many centuries, and that is right in front of the eyes and then make up new less efficient solutions that are very much disconnected from the ecosystem. If multiple solutions are key, include real trees and real green, cuz nobody does it better than than them.
Reflecting some heat means it will still be in atmosphere . Save Soil is the only, movement which can save us from global warming. plant more trees guys
How come there is no talk about the process of drilling an, "Air Well," like drilling for oil, but instead - you drill with highly temperature-conducting metal piping from a home & down to a calculated depth and then, "U-turn," it back to the surface and back into the structure. In summer, heated air is collected from high elevated ports and when the air is pumped into the ground - heat transfers from the pipe into the ground and returns back cooler! In the winter, the same system is used - collecting cold air at the floor. Ground temperatures are very stable - mid-to-upper 60's. So in cold weather a smaller, economical heat system only needs to raise the return air 3-5 degrees to warm the structure! It's Thermal Dynamics, folks. This technology has been around for at least several decades! No more refrigerants & lower heating costs!!! I never hear it talked about - seems the Refrigeration Industry has a great many silver-lined pocketed lobbyists in Washington D. C.
instead of reflecting light back "to the sun", why can't we absorb it and transfer it quickly to the ground? isnt this the natural way? the jungle doesnt reflect heat "back to the sun". could we research material science for the solution? transfer heat quickly to the ground from the roof and walls.
I'm from Zimbabwe and I recall correcting someone when I was studying in the US who was making fun of 'mud huts', calling them primitive when in actual fact they have amazing thermal efficiency for the climate they are in. I even gave an example of Eastgate Centre in Harare, the largest shopping mall in the country constructed in the 1990s which naturally cools itself. Unfortunately, I don't think it was enough to convince them otherwise.
Crazy, eh!
Lots'a love, cheers, & Mabuhay, from tropical Philippines!
MUD HOUSE ARE THE BEST
The white superiority complex stops them from listening to us tropical people
They have to make something very very complicated so that they can patent it and monopolise it so that they can make heavy money from a problem. If solution is too simple than how will these people make money.
They are perpetrators of verbal abuse.
Indian villages often used the clay roof tiles which kept cool inside houses red clay tiles called manglore tiles
@adiagy9283 these red clay tiles are seriously saying very dirt cheap in India in facts few plant's closed as no buyers people went for modern one's fancy looking one's these are out dated if I say refrigerator with out power again clay made chek mitti cool sites
@Adiagy how it can be expensive?
@@saurahhsingh everything cost money in USA, even dying is expensive lol ( funerals)
@@saurahhsingh We just don't produce as many roofing tiles. It's a premium product.
@@prashnaveetprasad8339 That's because life is cheap in India, so it costs you almost nothing (and that's determined by Indian society, not America).
I live in India, my grandparents put few layers of limestone powder in the rooftop (it's amazing that they find this solution themselves as they have never went to school, sometimes I wonder how they're so smart).
So in summer vacation I went to their house for a few days and it was freaking cool almost like 23°c when the weather was 40°c 🤯
if they weren't that smart, it means they were being attentive and curious. someone else did it, they recognized it, and wondered why.
I am also from India and painting roof with limestone powder is well known and used extensively in India. It's very cheap way to cool the roof. Mud houses painted with cow dung is also very effective in cooling home and used extensively in rural India
@Adiagy Mixed with the water and some other materials are also added in it. Then it is boiled at appropriate temperature. Once mix becomes fine paste them it is applied. Now a.days you also get ready made lime paint as well which does same work..
Based in Thailand I selected a bright white steel roof as a "fly-roof" (large open space under the roof) a 5m wrap around roof to keep sun off the walls and windows. An open staircase under the fly roof to allow hot air to rise and escape "stack effect ventilation" Walls are bright white and windows are very small mounted up high under the wrap around roof. Double aerated concrete block walls with foil and foam between. Foam also under the floor and in the ceilings. I am able to power my house and EV from home solar.
I use 12 old large pieces of fabric on coathangers on a clothes drying rack with stainless steel pans below them. By the way the stainless steel pans were bought in Cambodia and they regularly rust through and leak. Every time the rags start smelling of mold I wash them. When they dry out and I feel hot, I shower them with water but not too wet.
I live in a house with a backyard filled with bushes and trees, while the front yard with mostly concrete. I can literally feel the difference of air and temperature. I can have a relaxing afternoon in the backyard at 12nn - 3pm without air condition even when its 95 degrees Fahrenheit.
Yea cities are filled with concrete nowadays, barely any trees
Proud to see a bunch of Indian scientists in the forefront of this cooling edge technology!
Us Indians have achieved a lot and I am proud of the contribution on individuals. Sadly, all that talent comes out when such people leave the country. We have a huge brain drain issue, currently in acceleration. No administrations, past or current have done much to slow, stop or reverse this situation.
Another point was that USA started funding Trane's idea but India didn't even though such research would benefit Indians the most. There's no future planning, no vision on making India a hub for research rather than only service. There is no guidance - our current government is proactive to initiate disputes about decisions of some king centuries ago, but don't seem to have the time or money for nurturing the talent potential of the common India.
He is not an Indian. Judging by the accent, he sounds like an American with an Indian ancestry.
@@Earth098 he is Indian-american
He is both
"Back when I was doing my PhD at STANFORD" ... lol, can't help name dropping.
@@naveengokarla9518 copium
This is all very well, great ways to cool the insides of buildings, but we also need to cool the exterior.
Less roads, less concrete more nature.
This is remarkable. Cooling will be one of the biggest challenges of the world in the future. Please make more of similar content
I fully agree on the fact that we should first reduce our needs of cold air during summer with solutions as suggested in the video, but also by a better insulation. As for making our air conditionning greener we have to develop low carbon energy such as renewables and nuclear energy, change the nature of the refrigerant fluid !!
Use drapes and keep them closed in the day. At night open your windows with screens. Works wonders.
It works till night temperature becomes too hot as well.
Clearly someone hasn't lived in 45°C.
I'm imagining the SkyCool film being applied onto louvres and blinds to passively cool and keep heat out of any window, especially in humid tropical regions where evaporative cooling would just not work.
A lot of modern design based on European tastes or temperate climates with giant windows and skylights have been stupidly adopted by architects of equatorial places, making for unnecessary heat gain that ultimately ups the need for air-conditioning.
As an HVAC tech, i can see all of this makes sense, but as anything, there are disadvantages with all this, like the coolers of the market based on water, this works ok only in dry climates where evaporation is easier, and the water consumption is huge. White roofs make sense on only hot climates, you dont wanna use this in the north where they get very hot summers and very cold winters. It will help, but it wont stop air conditioning, we always want 70-75F in our houses.
Paint isn't really a factor in colder climates. In a cold environment, what you want is insulated walls without any leakage points, double windows, and controlled ventilation. Basically, the types of methods used for soundproofing are excellent for preventing heat loss. Radiative losses are miniscule compared to convective and conductive losses.
Only one solution cannot fit all, as a HVAC engineer myself I am always intrigued by what could be the next future air conditioner as the current technology we are using is already 120 years old. Definitely a lot of room to improve. For now I feel we must look towards net zero buildings and sustainable approach.
well it makes sense why ACs are painted white.
You're right about some of the disadvantages. However, it's a very American things to only have a 5 degree tolerance window. Almost everywhere else, you just layer and adapt to the temperature. It's only extreme heat or cold that's uncomfortable
eh, when power gets expensive you're not gonna have an option for 70-75f
Also, we already have paints/pigments that change color based on temperature, layer the super white paints they've created with the "transparent when warm black when cold" paints and you got something that adjusts to temperature
In Brazil, some people recycle milk packages by creating a mantle of them and putting it on the ceiling with some space between it and the roof. Idk the specifics of it but I went to a house that had that system in the bedrooms but not on the rest of the rooms and the difference in temperature was stark clear
Experts, researchers and engineers have to understand that earthly materials, plants, trees, ways to increase efficiency and reduce energy demands could help solving problems and not the space instruments shielding technologies could help reduce Mother Earth's temperature.
Thats why mud huts is something many people in India and around the world , are rooting for. Sustainable, and we humans beinga a part of nature, its natural ❤💯
US streets lack trees. As do their houses. trees will greatly improve the temperature arround them.
I've lived in mud houses in India which have a g+1 kind of setting with wooden ceiling for the first floor. They don't need much cooling even during the summer.
Ever seen Bucky Fuller' idea of natural cooling using cool air intakes at the bottom of any structure and hot air exhaust vents on the top. Very simple concept but very efficient.
In my Village we used to live in mud houses.
It's made up of clay, bamboo (for structural strength), cow dung and we use the leftover of Rice crop. We call it Parali.
It's quite cold inside during Summers and warm during winters. Though it needs a lot of maintenance but the maintenance isn't costly.
Very informative.... hope these solutions reach the common people in India and other countries and are financially viable
simply adding rivers and 30-40% tree cover reduces the city temp by 10-15 degrees compared to a brick and morter city.
But next day they are deforested
how did they make ice in the desert? he just skipped over that part. they didnt have this fancy metal back then
They didn't make ice. They stored ice during the winter and used it in summer.
Mud House Can be the Next generation house where you Cool feel . Which can be the Alternative against Cement Culture house which are part of climate change.
Better insulated walls
Better insulated windows
Reflective roofs
Trees
Evaporative cooling systems (like at that fish market)
Electric cars (fossil fuel engines emit lots of heat and raise the city temperature)
Raising temperatures in work places and shopping centers (which are often kept very cold for no reason)
in my city, the energy is mainly produced by thermal power plants and in peak summer days such as now, the energy demand skyrockets because of people's need of AC's. So the authorities came up with ingenious idea to not supply power to commercial players after 7 in the evening and asked them to use generators. This increases the burden on the commercial vendors and we the common people have to pay more. Also, there is the pollution but clearly that isn't the concern for an island city which faces direct threat from climate change and increasing sea level 😅
which city do you live in ??
In the UK, between 30-50% of our electricity comes from gas.
I've got solar panels on my roof, and intend to add even more. Before getting solar panels personally, I thought we could perhaps use renewables for the entire country but realistically, the solar panels aren't enough. I still need to pull from the grid
It'd be cool then if the UK would replace gas with nuclear instead
Dude! If you install solar panels, you save energy and you else get rid of the heat. Nobody mentioned that here...Also didn't mention mud or thermocol!
Finally an innovation in the cooling industry. I always thought Air Conditioners are not the best product considering the energy used and waste by the system. Really looking forward to see SkyCooler technology more in India at a larger scale
Well, it's essentially the basic system that Carrier came up with in 1901. Imagine if the money the world used in war spending over the last 120 since Carrier's invention would have been used to make better technologies, including AC's... we would be so far more advanced than we are now.
surprised u didn't discuss old desert (iran) technology of higher and lower chiming that allows cool air in and hot air out
seeing those carts getting an upgrade gives me hope in humanity
Here in Pakistan, the temperature reaches around 45-50 centigrade during June-July. We usually use calcium carbonate (Chuna) which reflects sunlight and results in decreasing the temperature
Plant more trees
lol for that you need more land, water, and time.Which isn't cheap!
Spent the first 2 minutes wondering why I recognized the narrator's voice
Why couldn’t the fish market utilize its HUGE roof and make it a rooftop farm? Generate income and shade the roof from direct light?
because its a common facility, most probably owned by all or the city/state. its not their job, they only know fish.
remember children, if a media house has made a documentary about it
the company is most likely doing something shady
we need more research on this, kudos to the community. Love you guys, you guys are doing something which is actually necessary in our society.
Dependency on air conditioning is not a solution. A real solution would be to incorporate nature into buildings and infrastructure, grow more tall trees so the building is in shade, grow climbing ivy plants on the walls and fences, build more passive houses with wide openings so the heat doesn't get trapped inside. Make aerogel insulation popular world wide.
I always wonder as to how implementation of ancient wisdom was replaced in the first place if it works better.
Is that because of re-emergence of constraints that lead to the necessity and relevance of such solutions?
Installing solar panel on roof can done the same job cheaply and also provide electricity better than applying new paint
Question, what if earth is going back to its normal temp and we are finally getting out of the Ice age?
Can someone explain to me: if Skycool's foil creates energy gradient without net energy input, then how does it not violate 2nd law of thermodynamics?
Not in a UA-cam comment section
The incoming radiation is reflected back at a specific wavelength essentially sending the heat away from the local area. This technology maximizes outgoing infrared radiation and minimizes the absorption of solar radiation.
@@CausticLemons7 Does not answer the question, does it?
There is a net energy input. I understand it to work like a heat sink. A heat sink works through conduction. Kinetic energy is transferred from an area of high heat to lower heat. A material like this works through radiation. Infrared energy is transferred from a hot medium to an a medium with low infrared energy.
Every material absorbs or reflects specific wavelengths of light. If the material absorbs a certain wavelength of light it can emit it too.
We receive most energy, from the sun, in the form of visible light. This is the light wavelengths you get if something is 5000° Celsius hot. This light can either get reflected or absorbed. Dark objects absorb visible light better than white/ reflective objects. So dark objects gain more energy from sunlight (heat up more), while white objects reflect that energy more (don't heat up as much).
Objects on earth are around 20° celsius hot. This means they emit light at infrared wavelengths if they are able to absorb those wavelengths of light.
If you want to get a material that keeps cool easily outside, you'd choose a material that reflects the visible light, but emits infrared light. It kinda ignores the sun, while it can loose its heat quite well.
No energy is created or deleted, entropy still goes down overall. The energy just goes back to space better.
Would've been useful if the two technologies mentioned here were compared.
The man laughing 4:52 is just so ❤❤❤❤.
im so glad we're re-finding these cheaper and less energy intensive solutions, but i just find it funny that for so long we just assumed our ancestors just boiled away in the heat and didnt do anything for thousands of years to try to make temperatures more bearable. maybe they knew something through sheer trial and error about building comfortable places lol
Bosch Building uses 3 stage cooling system which reduces the humidity by providing chiller water at dew points - degree .. especially plants near sea .. but office air cons can be controlled by VFD systems ..
This summer has been very harsh in India with some parts recorded upwards of 50 degrees Celsius. It amazes me how such a big problem of heating is crippling at least half of India and yet we are not doing any advances for sustainable solutions. Everyone installing ACs only make things worse for ambient temperatures. This is wake up call and we must act now.
Wow, those are really interesting solutions! I love that they use no power to work.
I also love the district cooling that is happenening where cool ocean bottom water is circulated through the city just. I know Hawaii is doing a little of that as is Toronto
The Madrid facility uses what’s called in the US southwest swamp coolers. Great in hot, arid climes.
I installed a light gray roof on my house and it really helped
I also installed a wind power ventilaiton system on my roof that drew the hot air out of the attic that would have radiated down into the building.
Apart from roof coating, air conditioning systems should use induction/solar heating with adsorption based cooling for getting over all minimum energy consumption. Unfortunately, these type of AC systems are not being given adequate importance by manufacturers and policymakers.
9:24 bless her and keep her safe. She’s beautiful ❤❤❤❤So glad tech is helping improve lives
White subtitles with no background? Really?
The UA-cam app allows you to change the appearance of subtitles.
Wow! Would love to have the skycool in Bangladesh
🤣🤣🤣
5:00 In order to make a dent on cooling demand, how about cities stop building so many highways and car infrastructure? Cities are getting super hot because they are getting filled with concrete everywhere. The only reason this video never touches that subject is because it's sponsored by GM.
Architectural optimization of buildings is nice and everything, but the most obvious solution is right there in plain sight.
Thanks to the corporate partners.
I hope bloomberg does a series regarding the future of cooling
I've been hearing about Skycool off from many content creators for months. The technology they have is absolutely incredible and the way how it works it's just amazing
I was thinking of setting up some mirrors on my roof and now I saw this skycool.... Hope I can buy some now.
Those thermal blankets we see them use in rescue operations That would work the same and its dirt cheap.
I think the reason why Spain don't want anyone to put air-conditions below 27 degrees Celsius is because, they want to conserve electricity and control the climate.
Kal Penn has such a great voice for this.
First you keep vehicle in shades and then you have added a roof to the cart definitely it will reduce the temperature. You need to test it when shade is not available and hot sun rays coming from an angle than vertical then efficiency of this product needs to be tested
Reflecting thermal energy back into the atmosphere will only help contribute to the warming issue though...
Rome has many ancient churches that felt literally cold in July. There was no AC.
8:12- is this kolar town from karnataka state? Looks like ammavaripet
But still my question is y Bloomberg never reported any news of US bank falldown but we interested in other countries affairs to weaken there businesses and economy
i blame it on the "architects" who care more about looks than function- with no concern of location/sighting/orientation. in much of the sunny usa you will save about 15% of your heating coolling costs by just orienting the long side of the building South. then there is placing most glass on the south side, plus adding moveable window insulation systems to every section of glass. more insulation is needed as well and shading via plants on the north, east and west sides. and more simple things like ventilation.
This is an innovative solution! ✨🙌
Presumably Skycool's foil could be deployed in a form of roof-top heat pump?
In conjunction with. Rather than just running off of the air, by hooking to a radiative panel that is cooler than the air temp you get savings when cooling is needed.
@@AlanPeery So like a water source heat pump with condenser water loop using the skycool panel as heat rejection units and the heat rejection purely via radiation?
Interested to see how this compares to a condenser water loop connected to a dry air cooler or an adiabatic unit in terms of EER and roof footprint required per kW cooling. 🤔
Nice that thin film has huge potential in india but it need durablity more then 5+year to justify its cost
Sometimes I feel that all that heat and humidity is for the plants to grow. Since that balance is off , it's trying to fix itself but we aren't allowing it. So till it achieves that target, nature won't stop.
Just because something is old (like an older technology) doesn't make it outdated or primitive. If it's survived long, it probably means it still works.
Our ancestors were not dumb. Learn from those lessons. They used naturally available resources and live in harmony with nature.... Not create new problems and solutions that create even more newer problems ...
When was this filmed? I got a cool bag in Belgium that kept fresh stuff from the market fresh
Execellent, informative video! Thank you, Bloomberg.
I don't know why when it comes to reverse cycling units on standard homes we don't take advantage of the earth's cooling.. 6 feet down the earth is a constant 24 degrees C, why not on hot days have the outside reverse cycle unit instead of letting all that hot air go into the atmosphere, why not have it run underground through a duct line to cool down to 24 degrees first?
With all due respect, I believe the cooling film is just a publicity stunt for investors. I have read about it a few years ago, such a remarkable technology should have been available on the market right now and still here we are and there is nowhere you can buy this stuff.
For comparison, the Chinese successfully developed viable sodium ion cells and got them on the market in less than 2 years.
However, you should have mentioned radiative absorption cooling which works by having vacuum tubes placed in a place which you want to cool and they absorb the heat making it 50% more efficient than standard AC because there is no need for de humidification. This can be done at home using standard chillers and vacuum tubes.
They should design a new cart where the distance between the roof and the base(on which vegies are kept) of the cart is very less.
Yep, white rooftops would help a lot.
That Skycool is an awesome tech!
what about the heaters in cold countries like Norway? Don't those harm the environment?
Why to reflect the sun light?? Can't it be converted into electricity?
Combine it with solar energy.....
Wait their is a product that will reflect heat & gives cool. Fine but what about amount of resources & CO2 emits while that product was building
If Skycool can be used for Solar panels, it would be a knockout combination
Reflective roofs decrease precipitation by 4% (less rain). Green surfaces (i.e. mother nature) absorb heat... allowing moisture from vegetation to evaporate into the atmosphere. We can make it worse by continuing to replace grass lands with concrete (reflective or not) and by creating more synthetic man-made top surfaces.
to distribute medicated camphor derivatives to zones facing persistent heatwave attacks. even under direct sunlight, exposed skin on camphor or alcoholic medicated oils does elevate the senses with relieve, at the same time detours the mind of the experiential expression of the heatwave allowing the self to resume the normal state of thinking all together.
Ban them?
Radiative cooling is not at all effective. Most of our room heat is due to hot air, not direct heating by the sun. You need a closed off system to cool it by radiative cooling.
79 adverts for a 12 minute video?
Thanks.
11:01 you are joking right??I’m an Architect and I studied passive cooling since day one in Acrh Studio Design..
He is talking about the materials that can get net zero heat with passive cooling.
I have travel to these places and people still live people still survive and some families you can see that sadness does not encompass their daily routine If you go to the buildings where people have to walk up many stairs to get to their house they don't leave their house very often Anyway there's nowhere to go even if they do. Very few people have jobs. Lack of transportation People live in and congested cities find it much harder to gain employment So most people create their own employment. Others just take
?
Nothing beats trees. Cut away the most efficient solution that evolved over many centuries, and that is right in front of the eyes and then make up new less efficient solutions that are very much disconnected from the ecosystem. If multiple solutions are key, include real trees and real green, cuz nobody does it better than than them.
Can this film be applied on Glass facade to reduce air conditioning requirements
Reflecting some heat means it will still be in atmosphere . Save Soil is the only, movement which can save us from global warming. plant more trees guys
Solar panels and heat pumps should help this problem some. Funny how small villages do this we just need to get big cities on board.
Telangana state has started the cool roof policy recently
What is the sheet called that is being used to cool the area?
Cheapest is use routing hot air through pipe underneath water pool or river then release cool air into cities
Is not it's Reflective material working as heating for others and throwing sun light
How come there is no talk about the process of drilling an, "Air Well," like drilling for oil, but instead - you drill with highly temperature-conducting metal piping from a home & down to a calculated depth and then, "U-turn," it back to the surface and back into the structure. In summer, heated air is collected from high elevated ports and when the air is pumped into the ground - heat transfers from the pipe into the ground and returns back cooler! In the winter, the same system is used - collecting cold air at the floor. Ground temperatures are very stable - mid-to-upper 60's. So in cold weather a smaller, economical heat system only needs to raise the return air 3-5 degrees to warm the structure! It's Thermal Dynamics, folks. This technology has been around for at least several decades! No more refrigerants & lower heating costs!!! I never hear it talked about - seems the Refrigeration Industry has a great many silver-lined pocketed lobbyists in Washington D. C.
instead of reflecting light back "to the sun",
why can't we absorb it and transfer it quickly to the ground?
isnt this the natural way? the jungle doesnt reflect heat "back to the sun".
could we research material science for the solution? transfer heat quickly to the ground from the roof and walls.