One day, the world will have a prestigious 'Robert Murray -Smith' innovation and Excellence Award in honour of this most lovable tinker king, inventor and educator. 🙏🏼
This kind of science communication is an invaluable public service. Thank you. I have no idea how you manage to put out so many videos of such high quality at such a pace. On this topic, greenhouses have long used devices like this to automatically open and shut windows as the internal temperature rises and falls with the heat of the day. Simple, cheap and is what's required for the job, nothing less, nothing more.
Pipes, reflective white around half of outer circumference, vanta black around other half. Pass fluid through. Rotate pipes so that black or white side is facing out by measuring fluid temp difference. Lay pipes adjacent to each other, forming panels. Easier to manufacture, possibly more responsive. Just a thought. Thanks for sharing these ideas.
Do pentagons with black, white and three additive colors, put it in every house in your city and then turn your city roofs into a the biggest screen ever created, that can be seen from space.
@@sogniluigi good to know! I'm guessing that the pipe simply rotates, and an external actuator like the one shown in the video could push or pull the section, then? (I'm thinking on an outer cog in the pipe and a straight dented section connected to the wax motor)
i look forward to seeing these videos . im a hvac mechanic in australia. we got the heat here. ive talked about your channel at work this week . these are great videos and highly recomend. youre are extremely switched on my friend !!!!!!
Just paint the roofing tiles white, and then paint over the white with black thermocratic paint. So when it's hot out the black paint fades to clear reveling the white paint and when it's cold the black paint reappears.
Great video... One thing that I have found is that if I go to a conference, or watch a video or educational event, and walk away with some piece of new knowledge...then that really makes it a success. (Often times, these things are very repetitive). So, thank you for explaining about "wax motors" / ThermoActuators... I shall add this to the educational material! Also, thank you for mentioning NightHawkInLight and Tech Ingredients... great channels.
So I had an idea recently to make a roof like something of a conveyor belt, like in a grocery store. one side of the belt (roof) is the black side and the other side is either white or a radiant barrier like aluminum or mylar. When its hot the thing rotates to the white or reflective side and conversely when it gets cold it turns to the dark side. It could easily be made out of vinyl, rubber, or any number of waterproof fabrics
I had a similar thought. Automatic shade covers already do something similar, just with a simple shade cloth - extended or rolled up. It would be great if such a design could be strong enough to become the roof surface itself, to cut down on costs. You could maybe even have three surfaces - black, white, and transparent for when you want the sun inside.
In 1977 Roland W. Robbins, Jr patented a solar tracker that was refrigerant based. As the working fluid heats up it would cause the panel to tilt in the direction of the sun and as the container would shade it would fall back to it's starting position. Seems to me this wax motor and paints could be tuned to do the same.
Wow. Love this idea. But I live in Alaska, so I'm thinking maybe for siding, since snow would be a problem. Especially this year. Good Lord, I've already shoveled my roof once and may have to Do It Again. "Wheels turning, round and round..." Might even be worth having an electric or even hand cranked mechanism that could operate all the slats at once through some extended, bulky, unsightly, maintenance heavy and prone to failure linkage...uh, or maybe I'll rethink that last part.
Robert, how about a long tall chimney painted in vanta black mounted on top of a building. When it heats up it creates a convection current pulling cool air through the building
Recent subscriber to the channel, have to say I very much enjoy the energy and joyful presentation of interesting technical information, refreshing change from the humorless dry norm. Will be binging on past videos, thanks for your efforts.
I have Freedom, and I LOVE the modifications. Beautiful! I'll be awaiting the video of the finalalized product. I look forward to it. (can't wait to mod out my own bike!) :-)
Oh wow! I cant believe I have never knew how they worked, Ive just seen them, Ive never ran into an issue with one. Thisncpuld be very useful, will have to start grabing them when I can. Thanks!
I have a 60 year old wax motor which still works perfectly to automatically control airflow to my Aga wood boiler, which I use to steam the putty and paint from old windows.
Hey Rob, thank you for this bit of information, That is astonishing! Both paint and the mechanism should be protected bei wind and weather though. Because nighthawk in light and Techingredients did proof that it increases efficiency and longevity of the pain. I say it also is beneficial for the mechanism to protect it from debris
I have a big warehouse. We chose bright aluminum foil covered roofing. Its amazing..warmer in winter and cooler in summer. Because it reflects heat away in summer and does not emit heat in winter. Reflectivity is high and emisivity is low.
Those two paints and the coiled pipe arrangement has me thinking of a fluidyne Stirling engine. Put one coil on each side of a board and have one coil painted black with a reflector or light guide concentrating the sun on it and have the other painted white and covered by a sunshade.
My idea was to use cheap white wash on roofs at the start of summer. The space cooling paint can be made cheaply from calcium carbonate. If it can be applied as a spray, a wash process every year might get around the problem of fouling.
The problem with using vanta black and super white on roof tiles is that it's not going to take long before each side is grey from airborne dust, or green from moss. The wax motor is interesting though. I've never heard of them before. The only similar thing I've seen is the wax thermostat, but that doesn't use expansion of the wax to operate.
Yes, that's precisely how they operate. In a car engine, when the wax melts, it expands and opens the thermostat, and then shrinks when the water going past it is cool enough to cause it to begin solidifying again.
Smaller plastic versions of these “wax motors” are used on the louvred styled internal-automatic backdraught shutter in extractor fans ~ most notably vintage “xpelair” gx series when they transitioned from the 2x cord-opened iris shutter to the louvred cord/solenoid shutter, the solenoid opened ones were known to make a loud rapid slap/bang when opening the shutter and a lot of users/customers found that an unpleasant sound when turning the fan on, with Vent-Axia T-series [80s vintage] those used a synchronous motor and gearing to open the shutter and made a quieter mechanical “clunk” sound, and eventually all the fan manufacturers found the wax motor to extremely quiet and slow when opening the shutter = the customer only noticing a change in the noise the extractor fan was making when the shutter was transitioning from closed to open/seeing the shutter slowly opening after turning the fan on
Reminds me of the Idea to Use a Gas Baloon to rise a black drone loaded with water which slowly swings down. On the way up it freezes on the way down the drone heats up and powering a peltier to generate gas to get back up again. Had those ideas because of the hot air/solar baloon / zeppeline in kids magazines back than
While this particular implementation may be a bitdiffult to a play to certain roof types, I love the application of a combination of simple, established tech to manage industrial scale solutions that don't need decades of further lab research. I didn't know about wax motors, and I'm now wondering if they could be used as a low cost solution for movable solar panels.
LOVE it !! I'm doing a lot a researche around this kind of "wax (also saw with air) motor" for this kind of uses, and this one is very interesting !! Particulary the idea that it mimicate the alternating bricks paterns we can see in warm countries, helping the wall to shade itself, Plus the flaps become kind of heat dissipators too.. !
Ok ! @@vitordelima Funny this 3D printing hype doing exactly the same thing, exept you need a rich man owning a big machine to pay, in place of doing funny things with mud with friends...
I have a gut feeling that putting some static white and some static black tiles. Then just using pumps and valves to decide which one is going to waste (like we can heat/chill rainwater and pour it into sever or onto grass) and which ones are utilized would be more robust and cheaper.
awesome! thanks for sharing, really the content I love watching and why I subscribed to your channel! Just to nag on the super white however, I think it is only applicable on flat roofs, as otherwise everyone would get blinded during the day and not be happy about the appearance - same for super black which is irritating for the eye and brains to look at :P
I'm envisioning the same setup, but instead of flipping roof tiles, the tiles are layers of grids with Vanta Black and White paint that the actuators slide back and forth to reveal the desired surface. I think that it would reduce the surface areas to 50%, unless multiple layers and actuators were used.
For the best efficency the roof needs to be kept very clean…same with solar panels. The rotating pipes (black one half white the other) seems to offer a self cleaning method.
Nice idea not sure it would be great with heavy winds. And white paint on a roof would be difficult to keep clean. A black fixed roof with water thermal transfer would be useful but getting rid of excess heat is inconvenient.
my work on this tech by the way is part of my "stop worrying about saving the earth and start worrying about saving the universe," tech development which obviously if it can do as it has proven in enclosed windows during the summer of actively obtaining and maintaining a 65F temp where applied while the other side of the window is actively reaching and convecting in the air cooled, area, some temps in 110F temps during the day on the south side of a building getting blasted by sunlight the whole time, I can only imagine how it will effect life for people as they save 100s of dollars and pounds a month on their air conditioning bills, alone, even if the heating aspect is not as effective ;)
I had always envisioned a series of wax motors that would lift weights up to a gravity battery. Not sure how well that would work in practice. In my mind it works great, Ha.
Well, it is actually a very interesting idea... the problem would likely be that the amount of wax needed to lift enough mass to generate enough energy to power a significant load (such as a air conditioner or more) would likely be a LOT of wax... so, it would take quite some time to heat up the wax during the day, and then again to cool it off so it would "return" at night. It would be a great engineering prototype to simulate or even try to create for sure.
@@marcfruchtman9473 They'd be in a stair formation like those penguin slide toys from back in the day. It would be very slow for sure. Just an idea I had.
Okay, I get the idea but just hear me out. to warm up your house with the black roofing, it has to both have sunlight and be exposed to the sky. In places where it snows, where heating is a huge energy expenditure, the sky’s are almost always cloudy when it’s that time of year and, of course the snow would cover it up nullifying any chance of warming effect. Cool idea though
It’s not going to be either on or off most of the time, especially if using a wax solenoid. Yes, mid winter it’ll be in one position, summer the other, then there’s spring to autumn, it’ll be neither up or down, thus being a roof full of wind blocks.
Slide panels rather than flip panels. White on top and black underneath if it's to hot the roof is full White. Cool weather they Slide sideways to expose the black water pipes for heating. I think that is a brilliant solution
I feel like using linkages and wax motors overcomplicates the design. Suppose you started with a superblack base layer. Then, you'd place fixed louvres over it, with enough of an air gap that there isn't significant heat transfer between the layers. Each louvre would have infrared radiative cooling paint. The angle and length of the louvres would be adjusted such that there would be no direct sunlight reaching the black layer in the summer and maximum direct sunlight in the winter (100% minus whatever shadows are cast by the edge of the louvres and their mounting hardware). In the winter, the black layer should absorb more than it radiates. In the summer, the black layer should radiate more than it absorbs, with the white coating ensuring that the radiation ultimately emitted is within the atmospheric infrared window. It might not be as efficient as a louvre that moves, but it ought to be much more robust and material-efficient. An additional step might be to add a layer of clear-to-black thermochromic dye to the louvres. In warmer months, the louvres stay white. In cooler months, they darken and inhibit the radiative effect of the louvres.
Food for thought: Most of us know that black is excellent for daytime heating. In the mountains of California, Arizona, and similar, in the summer time. I would set out a shallow black pan, at night (say 4ft X 8ft) fill with a couple inches of water., The next morning it would have a nice layer of ice for my ice chest. So, how will this affect a coil of black tubing, on the roof, water heater. And , same black coil, use to cool. PS The night time temp would have to get below 58 degrees Fahrenheit. Or maybe it was 56?
Suspenseful end, does that mean your going to try add it to your windfall or horizontal wind turbine to add in passive cooling or use it to improve the efficiency of something by allowing it to work at a higher voltage for longer?
We are getting very close to understanding the wisdom of nature and replicating it for sustainable power production. The cold , dry weather of the north meets with the hot, humid weather of the south and creates an electric whirlwind. Thermoelectrics using the Seabeck and Peltier effects synergistically spinning a wind turbine will be the solution soon. "Biomimicry is when we observe a trait in nature and copy it or parts of it for human technology and design."
I was wondering is it really possible to boil water by rotating magnets arranged in alternating polarity below the water? I’ve seen this purported in a few other videos (but I do not trust them as I do your channel sir). And do forgive me if you’ve already completed a similar video previously. I couldn’t find it if you have, but if not, perhaps others would find this experiment interesting as well. Thanks in advance, and keep up the GREAT WORK on this channel! Cheers!
If the wax stat has that much torque could it be used with a flywheel and a panel that flips to oscillate between heating and cooling and therefore extending and retracting the actuator. Or just have two panels next to each other one black one white and use bimetallic junctions to generate
So build something that uses "The Force" to gain an advantage. It appears we can do with this. Planned obsolence, best extraction of energy from something that causes a mechanical action once perhaps a few times a day. Live short and strong and have a 2 year lifespan if you want. Can it be turned into something that cycles every second?
Next step ▶ Using resistant and non toxic paints (maybe simply lime and carbon?), and integrating pipes in the tile to reclaim the temperature needed for other part of the house, or a thermal battery ?🔄
Been working on something far better than even this stuff, that actually cools an area and I am guessing even during cold weather will heat an area, night or daytime by reversing the entropic state of thermal energy by concentrating it in a given side of the function, (basically a passive heat pump that the energy of the heat itself is what causes it to function.) This tech you described is on the path to it, and would work even better, if some changes or additions were added to the tech, mind you my idea had the same concept as either sheets hung and flipped by the person, a box that it is inside that also is flipped, or a mini blind like idea made of say solid aluminum that is polished on one side and matt black on the other side, with magnetic material being used to generate spikes while the paint it is in dries to generate a shape much like the quietest room in the world and how it uses the wall covering to absorb sound, but instead for the act of heat and photon absorption. Vanta black had not even been thought of at the time and I was just looking at high temp BBQ paint that is a matt black as the absorbing side. Not sure which is better and will last long term, as these being on a roof are something that concerns me due to the white color being dirtied up over a short time from just dust and debris in rain (the particles of dust that water condenses onto, to make rain drops) thus ruining the effect of the two sides from full 100% effect in a short order. This last aspect is something that makes what I am working on better because that is not a problem since it can work from within a gap between two layers that equally are protecting the heat pump action for long term use (UV damages some of the material over about 3 to 5 days if left completely exposed to sunlight in a harsh environment like NM and OK in the USA, so not sure how long it would take in England or similar closer to the polar ends of the earth with reduced UV from sunlight areas. ) This summer I should have a geodesic dome equipped with this tech inside a heavy awning level canvas covering for the dome to show it in action in the wild and will continue monitoring it when flipped during the winter too with a chance to see how it functions during below freezing temps (-10F) to see if there is any less value at pulling and retaining heat than it has at rejecting it and sustaining its rejection.
Before playing with moving parts and hi tech paints which will get dirty and stop working, first at least change the regulations so that people can at least paint their roofs a sensible colour. In Australia west of Sydney we’ve seen temps almost to 50C, and yet developers chose BLACK as the colour of the roof tiles in whole subdivisions.
If anyone cared buildings could be designed for passive heating and cooling, many are. I can think of a several cheaper and more effective ways of achieving this end if it was designed into the building at the start. This is only interesting if it can be shown that it can be retrofitted to existing buildings cost effectively - which I very much doubt.
Just like a road when illuminated by sunshine creates wind thermals and wide temperature variations the same as as like a dessert of sand. Maybe blades of grass do operate as tiny wind and moisture catches to help keep soil cool and hydrated. Everything is designed for a reason and every city nowadays technically creates its own weather. I grew up flying hot air balloons in Albuquerque New Mexico where I have observed a once mostly desert area create greatly different weather patterns between the Sandia mountains and the Río Grand River as the city has build up with parking lots, roadways, grassy fields and sprinkler systems.
@@40trilland things are spreading out around here too. I was born in Albuquerque in 1956. I can remember when Uncle Cliff’s was way out on the North side of town and Rio Rancho was complete desert, only pockmarked by occasional decrepit mobile homes.
Well, for hot weather I have a simole and ecological solution to save up on energy bills less clothes (zero is the optimal number). As for cold days... Well, thats a bit more tricky.
If everything is a fantasy, you can just pretend you are cool in summer, warm in winter.😊 No electricity needed for your imagination.......well maybe a tiny bit.
One day, the world will have a prestigious 'Robert Murray -Smith' innovation and Excellence Award in honour of this most lovable tinker king, inventor and educator. 🙏🏼
Hopefully not for a long LONG time though!
@@spackerinternational6131 Absolutely!!
I enjoy his ideas of inventions and his enthusiasm.
❤ Well Said!! 💯 Agreed!!
I had this idea for blinds with a black side and a white side. Should be easy to manufacture.
I painted my workshop roof white and the difference on sunny days was about 5 degrees less sweaty!
This kind of science communication is an invaluable public service. Thank you. I have no idea how you manage to put out so many videos of such high quality at such a pace. On this topic, greenhouses have long used devices like this to automatically open and shut windows as the internal temperature rises and falls with the heat of the day. Simple, cheap and is what's required for the job, nothing less, nothing more.
Pipes, reflective white around half of outer circumference, vanta black around other half. Pass fluid through. Rotate pipes so that black or white side is facing out by measuring fluid temp difference. Lay pipes adjacent to each other, forming panels. Easier to manufacture, possibly more responsive. Just a thought.
Thanks for sharing these ideas.
i ve had this idea of rotating pipes that transfer heat...
Do pentagons with black, white and three additive colors, put it in every house in your city and then turn your city roofs into a the biggest screen ever created, that can be seen from space.
I'm thinking the engineering of joints for rotating pipes that are leeak safe must be complicated...
@@drillerdev4624 I'm a plumber and I can tell you that it already exists and is not expensive or difficult to manufacture
@@sogniluigi good to know!
I'm guessing that the pipe simply rotates, and an external actuator like the one shown in the video could push or pull the section, then? (I'm thinking on an outer cog in the pipe and a straight dented section connected to the wax motor)
Those actuators work like an engine thermostat. When i learned how they work, I thought it was just so cool (or hot, lol)
I think it’s hot!
I'm a roofer and I've thought of doing roofs in this fashion
i look forward to seeing these videos . im a hvac mechanic in australia. we got the heat here. ive talked about your channel at work this week . these are great videos and highly recomend. youre are extremely switched on my friend !!!!!!
I suggest we all go back to the caves, no heating or cooling required .
The wax motor is also the main method of maintained the temperature of a mixer shower. They can close off water pressures of up to 10 bar.
Interesting! Didn't know about these ones. There are paraffin wax vent openers for hot house vents and of course the thermostat in car cooling systems
Just paint the roofing tiles white, and then paint over the white with black thermocratic paint. So when it's hot out the black paint fades to clear reveling the white paint and when it's cold the black paint reappears.
🌟 = no need for an elaborate louvre shutter mechanism ~ completely passive
What is a "thermocratic paint"? How does the black paint fade when it's hot?
✅ - thermochromic
Good luck finding such a paint
I love that ideea!
how about just sliding instead of flipping... same actuator ...
Great video... One thing that I have found is that if I go to a conference, or watch a video or educational event, and walk away with some piece of new knowledge...then that really makes it a success. (Often times, these things are very repetitive). So, thank you for explaining about "wax motors" / ThermoActuators... I shall add this to the educational material!
Also, thank you for mentioning NightHawkInLight and Tech Ingredients... great channels.
You must be Anthony Hopkins brother 😅So inspiring to listen too.
Whooh Purdue! Finishing up my degree in the spring (in something completely different!)
Thank you Robert for the latest energy news Sir.
Marvelous gift to us your community, my head is spinning with potential uses!!! Thank you very much , Mr.RMS "Innovator extraordinaire"
So I had an idea recently to make a roof like something of a conveyor belt, like in a grocery store. one side of the belt (roof) is the black side and the other side is either white or a radiant barrier like aluminum or mylar. When its hot the thing rotates to the white or reflective side and conversely when it gets cold it turns to the dark side. It could easily be made out of vinyl, rubber, or any number of waterproof fabrics
I had a similar thought. Automatic shade covers already do something similar, just with a simple shade cloth - extended or rolled up. It would be great if such a design could be strong enough to become the roof surface itself, to cut down on costs. You could maybe even have three surfaces - black, white, and transparent for when you want the sun inside.
In 1977 Roland W. Robbins, Jr patented a solar tracker that was refrigerant based. As the working fluid heats up it would cause the panel to tilt in the direction of the sun and as the container would shade it would fall back to it's starting position. Seems to me this wax motor and paints could be tuned to do the same.
Thanks for sharing this amazing new technology. I am interested in making a version of my own!
Wow. Love this idea. But I live in Alaska, so I'm thinking maybe for siding, since snow would be a problem. Especially this year. Good Lord, I've already shoveled my roof once and may have to Do It Again. "Wheels turning, round and round..." Might even be worth having an electric or even hand cranked mechanism that could operate all the slats at once through some extended, bulky, unsightly, maintenance heavy and prone to failure linkage...uh, or maybe I'll rethink that last part.
Robert, how about a long tall chimney painted in vanta black mounted on top of a building. When it heats up it creates a convection current pulling cool air through the building
Beautiful insight Robert Thankyou for the upload!
Like it.
Of course these 'wax motors' have been used in thermostats for many years. Car radiators one example.
I thought they were just bimetal devices. I've never heard of wax ones.
Recent subscriber to the channel, have to say I very much enjoy the energy and joyful presentation of interesting technical information, refreshing change from the humorless dry norm. Will be binging on past videos, thanks for your efforts.
Great awareness sharing again Rob.
Can you sign post us to your video on the white reflective paint please
I have Freedom, and I LOVE the modifications. Beautiful! I'll be awaiting the video of the finalalized product. I look forward to it. (can't wait to mod out my own bike!) :-)
Clever but looks like it might catch the wind and get damaged.
I agree, it needs a simpler design with fewer moving parts and less vulnerable.
Oh wow! I cant believe I have never knew how they worked, Ive just seen them, Ive never ran into an issue with one. Thisncpuld be very useful, will have to start grabing them when I can. Thanks!
I have a 60 year old wax motor which still works perfectly to automatically control airflow to my Aga wood boiler, which I use to steam the putty and paint from old windows.
Hey Rob, thank you for this bit of information, That is astonishing! Both paint and the mechanism should be protected bei wind and weather though. Because nighthawk in light and Techingredients did proof that it increases efficiency and longevity of the pain. I say it also is beneficial for the mechanism to protect it from debris
I have a big warehouse. We chose bright aluminum foil covered roofing.
Its amazing..warmer in winter and cooler in summer.
Because it reflects heat away in summer and does not emit heat in winter. Reflectivity is high and emisivity is low.
Those two paints and the coiled pipe arrangement has me thinking of a fluidyne Stirling engine. Put one coil on each side of a board and have one coil painted black with a reflector or light guide concentrating the sun on it and have the other painted white and covered by a sunshade.
My idea was to use cheap white wash on roofs at the start of summer. The space cooling paint can be made cheaply from calcium carbonate. If it can be applied as a spray, a wash process every year might get around the problem of fouling.
The problem with using vanta black and super white on roof tiles is that it's not going to take long before each side is grey from airborne dust, or green from moss.
The wax motor is interesting though. I've never heard of them before. The only similar thing I've seen is the wax thermostat, but that doesn't use expansion of the wax to operate.
Yes, that's precisely how they operate. In a car engine, when the wax melts, it expands and opens the thermostat, and then shrinks when the water going past it is cool enough to cause it to begin solidifying again.
Utilizing this now, my rv has the reflective paint, my pool water is heated with a black hose setup. They both work very well.
hope you planning on playing around with painted based cooling and heating
thank you for your channel
Smaller plastic versions of these “wax motors” are used on the louvred styled internal-automatic backdraught shutter in extractor fans ~ most notably vintage “xpelair” gx series when they transitioned from the 2x cord-opened iris shutter to the louvred cord/solenoid shutter, the solenoid opened ones were known to make a loud rapid slap/bang when opening the shutter and a lot of users/customers found that an unpleasant sound when turning the fan on, with Vent-Axia T-series [80s vintage] those used a synchronous motor and gearing to open the shutter and made a quieter mechanical “clunk” sound, and eventually all the fan manufacturers found the wax motor to extremely quiet and slow when opening the shutter = the customer only noticing a change in the noise the extractor fan was making when the shutter was transitioning from closed to open/seeing the shutter slowly opening after turning the fan on
Interesting stuff. Hope to see you give it a try sometime.
Reminds me of the Idea to Use a Gas Baloon to rise a black drone loaded with water which slowly swings down. On the way up it freezes on the way down the drone heats up and powering a peltier to generate gas to get back up again. Had those ideas because of the hot air/solar baloon / zeppeline in kids magazines back than
Thanks for posting
While this particular implementation may be a bitdiffult to a play to certain roof types, I love the application of a combination of simple, established tech to manage industrial scale solutions that don't need decades of further lab research.
I didn't know about wax motors, and I'm now wondering if they could be used as a low cost solution for movable solar panels.
LOVE it !! I'm doing a lot a researche around this kind of "wax (also saw with air) motor" for this kind of uses, and this one is very interesting !! Particulary the idea that it mimicate the alternating bricks paterns we can see in warm countries, helping the wall to shade itself, Plus the flaps become kind of heat dissipators too.. !
I saw something similar to those patterns once, it was a 3D printed adobe wall and it had a strange shape that shaded itself.
Ok ! @@vitordelima Funny this 3D printing hype doing exactly the same thing, exept you need a rich man owning a big machine to pay, in place of doing funny things with mud with friends...
@@AutoNomades You can 3D print a mold for cheap then use it to make as many bricks as you want.
@@vitordelima Or ....you can build a mold with you hands ^^....
I have a gut feeling that putting some static white and some static black tiles. Then just using pumps and valves to decide which one is going to waste (like we can heat/chill rainwater and pour it into sever or onto grass) and which ones are utilized would be more robust and cheaper.
awesome! thanks for sharing, really the content I love watching and why I subscribed to your channel! Just to nag on the super white however, I think it is only applicable on flat roofs, as otherwise everyone would get blinded during the day and not be happy about the appearance - same for super black which is irritating for the eye and brains to look at :P
I'm envisioning the same setup, but instead of flipping roof tiles, the tiles are layers of grids with Vanta Black and White paint that the actuators slide back and forth to reveal the desired surface. I think that it would reduce the surface areas to 50%, unless multiple layers and actuators were used.
For the best efficency the roof needs to be kept very clean…same with solar panels. The rotating pipes (black one half white the other) seems to offer a self cleaning method.
Nice idea not sure it would be great with heavy winds. And white paint on a roof would be difficult to keep clean. A black fixed roof with water thermal transfer would be useful but getting rid of excess heat is inconvenient.
We have billboard tarps, some white on the back, and some black on the back. Of nothing else we can use them as shade, or warming our roof.
my work on this tech by the way is part of my "stop worrying about saving the earth and start worrying about saving the universe," tech development which obviously if it can do as it has proven in enclosed windows during the summer of actively obtaining and maintaining a 65F temp where applied while the other side of the window is actively reaching and convecting in the air cooled, area, some temps in 110F temps during the day on the south side of a building getting blasted by sunlight the whole time, I can only imagine how it will effect life for people as they save 100s of dollars and pounds a month on their air conditioning bills, alone, even if the heating aspect is not as effective ;)
Love it!
I had always envisioned a series of wax motors that would lift weights up to a gravity battery. Not sure how well that would work in practice. In my mind it works great, Ha.
Well, it is actually a very interesting idea... the problem would likely be that the amount of wax needed to lift enough mass to generate enough energy to power a significant load (such as a air conditioner or more) would likely be a LOT of wax... so, it would take quite some time to heat up the wax during the day, and then again to cool it off so it would "return" at night. It would be a great engineering prototype to simulate or even try to create for sure.
@@marcfruchtman9473 They'd be in a stair formation like those penguin slide toys from back in the day. It would be very slow for sure. Just an idea I had.
Ive looked into color changing paint, that changes with tempreture thought about painting my boat in it 😂
Experimented with a solid state spin on that tile using thermochromic pigment which was cool.. (or hot :) but functional lifespan is a challenge.
Okay, I get the idea but just hear me out. to warm up your house with the black roofing, it has to both have sunlight and be exposed to the sky. In places where it snows, where heating is a huge energy expenditure, the sky’s are almost always cloudy when it’s that time of year and, of course the snow would cover it up nullifying any chance of warming effect. Cool idea though
It’s not going to be either on or off most of the time, especially if using a wax solenoid. Yes, mid winter it’ll be in one position, summer the other, then there’s spring to autumn, it’ll be neither up or down, thus being a roof full of wind blocks.
Slide panels rather than flip panels. White on top and black underneath if it's to hot the roof is full White. Cool weather they Slide sideways to expose the black water pipes for heating. I think that is a brilliant solution
I feel like using linkages and wax motors overcomplicates the design.
Suppose you started with a superblack base layer. Then, you'd place fixed louvres over it, with enough of an air gap that there isn't significant heat transfer between the layers. Each louvre would have infrared radiative cooling paint. The angle and length of the louvres would be adjusted such that there would be no direct sunlight reaching the black layer in the summer and maximum direct sunlight in the winter (100% minus whatever shadows are cast by the edge of the louvres and their mounting hardware).
In the winter, the black layer should absorb more than it radiates. In the summer, the black layer should radiate more than it absorbs, with the white coating ensuring that the radiation ultimately emitted is within the atmospheric infrared window.
It might not be as efficient as a louvre that moves, but it ought to be much more robust and material-efficient.
An additional step might be to add a layer of clear-to-black thermochromic dye to the louvres. In warmer months, the louvres stay white. In cooler months, they darken and inhibit the radiative effect of the louvres.
How useful might the wax motor be for opening a vent in an Earthship style greenhouse?
Food for thought: Most of us know that black is excellent for daytime heating. In the mountains of California, Arizona, and similar, in the summer time. I would set out a shallow black pan, at night (say 4ft X 8ft) fill with a couple inches of water., The next morning it would have a nice layer of ice for my ice chest. So, how will this affect a coil of black tubing, on the roof, water heater. And , same black coil, use to cool. PS The night time temp would have to get below 58 degrees Fahrenheit. Or maybe it was 56?
Thank you very much...
Suspenseful end, does that mean your going to try add it to your windfall or horizontal wind turbine to add in passive cooling or use it to improve the efficiency of something by allowing it to work at a higher voltage for longer?
ingenius
What do you think the most cost effective form of energy storage is ? Flywheel? Batteries ? Thermal batteries such as red hot bricks ?
Such devices are used on my greenhouse vents.
If this was added to a panel can roof will it keep the internal van cool!
What about a paint that changes to black when cold and white when hot?
Then just coat your roof/shingles with the stuff.
We are getting very close to understanding the wisdom of nature and replicating it for sustainable power production. The cold , dry weather of the north meets with the hot, humid weather of the south and creates an electric whirlwind. Thermoelectrics using the Seabeck and Peltier effects synergistically spinning a wind turbine will be the solution soon.
"Biomimicry is when we observe a trait in nature and copy it or parts of it for human technology and design."
The wax motors are also used to open and shut greenhouse windows
I was wondering is it really possible to boil water by rotating magnets arranged in alternating polarity below the water? I’ve seen this purported in a few other videos (but I do not trust them as I do your channel sir). And do forgive me if you’ve already completed a similar video previously. I couldn’t find it if you have, but if not, perhaps others would find this experiment interesting as well. Thanks in advance, and keep up the GREAT WORK on this channel! Cheers!
If the wax stat has that much torque could it be used with a flywheel and a panel that flips to oscillate between heating and cooling and therefore extending and retracting the actuator. Or just have two panels next to each other one black one white and use bimetallic junctions to generate
The wax motors in a car's thermostat contains copper powder to improve performance.
What was that fantastic building you were in? Or was that CG?
Very cool
So build something that uses "The Force" to gain an advantage. It appears we can do with this. Planned obsolence, best extraction of energy from something that causes a mechanical action once perhaps a few times a day. Live short and strong and have a 2 year lifespan if you want. Can it be turned into something that cycles every second?
Nice.
Next step ▶ Using resistant and non toxic paints (maybe simply lime and carbon?), and integrating pipes in the tile to reclaim the temperature needed for other part of the house, or a thermal battery ?🔄
Been working on something far better than even this stuff, that actually cools an area and I am guessing even during cold weather will heat an area, night or daytime by reversing the entropic state of thermal energy by concentrating it in a given side of the function, (basically a passive heat pump that the energy of the heat itself is what causes it to function.) This tech you described is on the path to it, and would work even better, if some changes or additions were added to the tech,
mind you my idea had the same concept as either sheets hung and flipped by the person, a box that it is inside that also is flipped, or a mini blind like idea made of say solid aluminum that is polished on one side and matt black on the other side, with magnetic material being used to generate spikes while the paint it is in dries to generate a shape much like the quietest room in the world and how it uses the wall covering to absorb sound, but instead for the act of heat and photon absorption. Vanta black had not even been thought of at the time and I was just looking at high temp BBQ paint that is a matt black as the absorbing side. Not sure which is better and will last long term, as these being on a roof are something that concerns me due to the white color being dirtied up over a short time from just dust and debris in rain (the particles of dust that water condenses onto, to make rain drops) thus ruining the effect of the two sides from full 100% effect in a short order.
This last aspect is something that makes what I am working on better because that is not a problem since it can work from within a gap between two layers that equally are protecting the heat pump action for long term use (UV damages some of the material over about 3 to 5 days if left completely exposed to sunlight in a harsh environment like NM and OK in the USA, so not sure how long it would take in England or similar closer to the polar ends of the earth with reduced UV from sunlight areas. )
This summer I should have a geodesic dome equipped with this tech inside a heavy awning level canvas covering for the dome to show it in action in the wild and will continue monitoring it when flipped during the winter too with a chance to see how it functions during below freezing temps (-10F) to see if there is any less value at pulling and retaining heat than it has at rejecting it and sustaining its rejection.
good one
Before playing with moving parts and hi tech paints which will get dirty and stop working, first at least change the regulations so that people can at least paint their roofs a sensible colour. In Australia west of Sydney we’ve seen temps almost to 50C, and yet developers chose BLACK as the colour of the roof tiles in whole subdivisions.
another example / source of the linear actuators would be car thermostats
This idea would good for use in space, but on earth we have something called - birds. LOL
If anyone cared buildings could be designed for passive heating and cooling, many are. I can think of a several cheaper and more effective ways of achieving this end if it was designed into the building at the start. This is only interesting if it can be shown that it can be retrofitted to existing buildings cost effectively - which I very much doubt.
Maybe if they use graphene quantum dots or structures like nano filaments heat absorbtion is greatly increased? Just guessing
Aren’t wax pistons used to open greenhouse vents when it’s hot?
I'd be curious on how these would work on the back of glass to act as a mirror.
isn't the idea actually ancient? also, wouldn't a city shining white like this create it s own weather?!
Just like a road when illuminated by sunshine creates wind thermals and wide temperature variations the same as as like a dessert of sand. Maybe blades of grass do operate as tiny wind and moisture catches to help keep soil cool and hydrated. Everything is designed for a reason and every city nowadays technically creates its own weather. I grew up flying hot air balloons in Albuquerque New Mexico where I have observed a once mostly desert area create greatly different weather patterns between the Sandia mountains and the Río Grand River as the city has build up with parking lots, roadways, grassy fields and sprinkler systems.
@@40trill oh i dream about flying in hot air balloons...
@@40trilland things are spreading out around here too. I was born in Albuquerque in 1956. I can remember when Uncle Cliff’s was way out on the North side of town and Rio Rancho was complete desert, only pockmarked by occasional decrepit mobile homes.
Lime plaster does have a substantial cooling effect, and it's a feature of traditional Greek construction for this reason.
Well, for hot weather I have a simole and ecological solution to save up on energy bills less clothes (zero is the optimal number).
As for cold days... Well, thats a bit more tricky.
So you have cold rain appear on hot day. Your shingles are caught in midphase during gulleywashers.
It'd be good for the planet in 2 ways
You take us on the most terrific adventures . Thank You 🫡🤝
A panel like this could be used to help warm and cool a greenhouse.
Was literally watching this as I was washing my clothes
Sounds great! Until it snows enough to cover the roof, then it doesn't work at all. Wouldn't work in the areas I've lived in all my life.
1:35 Why would "ordinary solenoid rot away"? They can be made water tight. And it seems wax motors often have coils in them anyway.
Elegantly simple, BUT neither of those paints are robust enough to last very long outside.
If everything is a fantasy, you can just pretend you are cool in summer, warm in winter.😊
No electricity needed for your imagination.......well maybe a tiny bit.
I will have to shovel the snow off to get it to work lol
Easier Tip: Use a wax thermostat from a shower body, or Thermostat from a water pump from a car. Far more Robust than a washing machine thermostat.
Solar panels keep roofs cool too