The world's cheapest solar heater 300 ⁰С: its problems & their solutions, new experiments 2024
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- Опубликовано: 16 апр 2024
- This concave mirror is made from this reflective film at a cost of 25 cents / sq.m, and this mesh of steel rods with a total cost of about $3, and it is almost 100 times cheaper than these mirrors which are used to convert large amounts of solar radiation into thermal energy and electricity, and we understand that the radical reduction in the cost of these mirrors makes their electricity cheaper than from solar panels, or thermal and nuclear power plants. You may think that these cheap mirrors do not work well, but it is not, and my old videos showed how that mirror focuses the solar radiation here, where it can heat up to temperatures higher than 300 ⁰C. In addition, my old videos repeatedly showed how we can turn this thermal energy not only into cheap electricity, but also into very cheap heat for greenhouses, for industrial processes, and for district heating of a city.
Of course, you may ask, if this device is so wonderful, why has not it made a breakthrough in electricity generation yet, and why do not we see a revolution in agriculture based on cheap greenhouse heating? Why do not we see a revolution in cheap space heating and hot water supply and revolutionary breakthroughs in factories and mining due to very cheap thermal energy?
I can answer as follows: no one is researching or producing this simple and cheap mirror yet. This very simple idea was first shown by me only 2 years ago, and this video will show my new experiments over the past year. Unfortunately, my RUclips channel is the only source of information about research on such combinations of meshes and films.
In addition, let's assume that someone decided to create a start-up to manufacture and install this type of solar heaters, and let's look at the problems that the start-up will face.
Perhaps you think that this cheap film has a short lifespan, but now I show that my film has been living for many months under snow and wind. Here we can notice that there is a strong wind now, but pay attention here, and we see that the film is motionless because it is very stretched. Unfortunately, solar radiation and weather cause films to age, and one of my old videos showed the life of a mirror month after month. It turned out that the life of the film ended after 18 months in this way, but it was the cheapest film made from one layer of mylar 20 microns thick, but maybe the start-up will find a more durable film.
So, that startup should create the possibility of replacing films every 1...2 years, and now I will show an example of the replacement on a row of these 3 mirrors, when first a film roll is placed along the entire row, and then the film is fixed with meshes. But I think another replacement method is more promising, when first a rectangle of film is fixed on a similar multi-year frame, and then they are fixed on a mesh. I think the height of the frame should be larger, 2...3 meters, and the optimal width would be between 1.5 and 3 meters, for installation by two workers who should spend less than a minute replacing each frame. In addition, that startup should create a factory to remove old films from frames and install new films on old frames so that the total cost of the film replacements is about 1 USD / sq.m, including the cost of film, logistics and worker salaries.
That start-up must find a way to reduce or eliminate these wrinkles which decrease the thermal energy production, and now we see that getting rid of the wrinkles is possible. Now I am showing this mirror film of other bloggers, which also has these wrinkles, and now we see how these wrinkles are removed with hot air from this heat gun.
Of course, I tried to remove these wrinkles with this heat gun, and you can see how it worked. This is the result of removing the wrinkles in all four corners of my mirror. But it is obvious that the start-up should not use hand-held heat guns, but some hot objects in the form of such a frame that can be carried by two people or a machine.
It was the 1st option for removing wrinkles, and now I will describe the 2nd option, and I show you the mylar film again to remind you what wrinkles it had. But this is the same mirror, but the film is not made of mylar, but polyethylene, and we see that there are no wrinkles because polyethylene and mylar have different stretch parameters. This is my attempt to use reflective polypropylene film, and here we see the cause of my failure and understand that these are the places of maximum stretch of the film, but these corners have almost no wrinkles. Now I am trying to show you the stretching force of the film.
The 3rd option is based on various influences on а reflective film with temperature and pressure during its installation on the frame, or after the installation, or this option gives necessary deformations to the film before the installation. Let me show you some of my little experiments, and now I remind you how many wrinkles the mylar film had in the beginning. 
Наука
Love your vids that are honest, factual and always take costing into account. You are genuinely trying to solve problems not push an agenda. Very refreshing and I wish you all the best in your honourable endeavours.
there is need for space , if i want to install on the balcony. photovoltaic pannels are straight and don't take a lot of space on the balcony can be mounted directly
You are an inspiration.
Now how do we make a sand battery to work along side this tech. Forget startups and companies, DIY ftw
maybe regular electric battery for individual home, sand battery for industrial size
beam the heat into the sand, or use a liquid to move it into it.
but for just storing and capturing heat it is more easy to just make a big black panel and make water flow through it all across it, will work as well and much more simple also less heat differences and so less stress. still having a small object receive all the heat has it's advantages as well, but since we are talking about diy, you might want to concider it being harder to do.
Гарні і корисні досліди, безцінний досвід. Дякую!
You’re not the first to implement a mesh behind a film or thin mirror. The main issue with films, apart from their lack of rigidity, is that they experience more thermal expansion and contraction, and they degrade. 3M was doing great research on films 10-15 years ago, but they shut the project down because there was no significant demand. I have used Mylar film for this purpose, and my film only lasted a few months before the mirror finish started wearing away at contacts points with the backing. I think the thermal expansion is manageable, but at scale these films must not degrade over decade time spans. This is challenging even for plastics that are supposed to be UV resistant, and it is no trivial issue. However, if someone solves this, films will certainly be the best option for concentrated solar.
Good video, but it omits the next and most important step which is my feedback on all of your excellent videos... converting steam to electricity for the home user. My advice is to focus some resources in to that as opposed to perfecting the solar collector. After all, collecting solar energy is pointless if we can't harness it into useful heat storage / electricity.
Your solar collector is getting better each year, but what can we tangibly do with it???
Yes this has been my repeated question as well. I love his channel and content but its the same experiment over and over again. For now, he should "pick one" that he feels is his best first step and then go the next step all the way thru the conclusion (home heat storage, home hot water storage, and home power generation): the full loop.
Then he can collect the data all the way through as his baseline and then make adjustments to see ACTUAL final impact at the end of the loop downstream.
Is he looking for a startup investor? I'm not sure but if he were to apply the 80/20 rule, he would be way more successful as a RUclipsr.
Like many others Caryex, BladeAtilla, etc.. They all need to make complete loop models, even if small ones, collect the data, and then build on that. They would all have huge followings if they did but sometimes I wonder if this is all just attempting to waste our times.
Domestic and industrial hot water is a valuable resource that consumes a lot of gas and electricity. It can be cheaply stored for use at night or on cloudy days. This system would be very helpful -- even it only pre-heated tap water (55F) to 90-100F -- that would significantly reduce cost and resources. Great content!
Very inspiring. Thank you for the thorough investigation and proper testing. This is all valuable data!
Love your videos and our practical solutions
Outstanding video.
Super!!!👍👍👍👍👍
Hey Sergiy, I am planning to start a company building cheap & simple solar hot water heaters for residential pool heating in the united states. I plan to begin with pool heating and expand into hot oil systems with heat storage and even csp pv using water cooling for electricity production. I am interested in working together sometime in the future. I am working on my own research using fence posts and welded wire / hog wire, this trough system is most similar to your earlier systems, but i plan to build these using cheap and automated fence post construction technology.
Good luck!
Have you tried a fresnel lens from an old flat screen tv? Does the same thing when light travels through it.
Good Work Yurko
i would put water on the mirror film installed on the frame set in the horizontal plane until you would achieve the desired stretch and concavity and i would spray something on the underside to harden the film in the desired shape and hold that shape .
there is a greepowerschience video on youtube where you can see part of the process of making a diy water lens.
thats pretty smart, i just googled there soem products like Line-X , or.... damn windows didnt copy paste the others XD
that seems smart though, make a 2x2m frame put in foil, fil;l with water and spray hardener foam on back, remove water then isntall panel
@@any1alive ^_^
Цікава ідея. Успіхів в просуванні її!
Здравствуйте Сергей, надеюсь с Вами всё хорошо. Очень рад Вас слышать!
It's a genius build for emergencies, but for industrial usage it has to last much longer. For the big mirrors you calculated the price including building. To check if its cost effective you have to compare the costs including building and maintainance divided by lifetime.
Nevertheless: Great project for people who want (or have to) build their own solar collector. Congratulations for this nice work!
My phone is dying. Trying to 👍 love your show ✨
Terrible plastic waste . We had a solar collector made from a surplus dish antenna 7' in diameter lined with glass mirror tiles , hardly any cost . I estimated the power generated in a good sunny day at 1200 watts . The dish is still useable after almost 20 years .
Сергей, вы просто гений! Такой дешёвый способ создания зеркала - это нечто)
Долго думал, но такое в голову не приходило
You could totally eliminate wrinkles if you made a "parabolic trough", it might also be easier to manufacture a frame for such a shape.
maybe semi circular, longitudinal, tubular receivers
rather cilindrical with tube heat collector, less loss. and more focus of the mirror
@@omviuvenitlalumina A semi-circular cross section wouldn't focus the sun's rays to a point. You need a parabola.
@@robbiekavanagh2802 it needs a rotation of the semicircular tubes
@@robbiekavanagh2802 it requires extra adjustments, to follow the sun
you are a genius. to install this on a balcony may be another difficulty. due to space restrictions . this needs a lot of space in the countryside, or on roof, even if it is longitudinal heat collectors made from pipe. maybe make it tubular. and semicircle and transportable. like for camping and cooking . it is difficult to install in a flat on the balcony....due to space limitations . so only a flat surface is practical on a blacony in the city
Спробуйте варіант циліндричного дзеркала, наприклад, висотою 1 м і довжиною 5 м. Не буде проблеми зморшок, а також поміняйте ребра горизонтальні та вертикальні місцями, і фокусна пляма буде розмита у горизонтальному напрямку. Колектор зробіть горизонтальною трубою яку треба буде рухати за однією координатою
Dear Yurko
Can you produce electricity for a home if the temperature is between 36 to 50 degrees C … ?
Awaiting reply
Simple: create aluminum plate/steel backer in correct optimized shape (by industrial stamping). Put (replaceable) Mylar film on it using nothing else but a thin coat of water as the glue. Surface tension suffices. You will not have wrinkles, but if you do: heat gun.
Replacement should be easy as only surface tension of water binds Mylar to the steel.
Cheaper is possible (i.e. thermoplastic instead of aluminum backer) but aluminum plate is cheap enough and no UV degradation.
I think the primary reason they do not use it is due to the generator to turn the heat into energy, as well as it not looking as fancy as solar pannels(marketing). and the fact of it being cheap and easy to make, meaning they can't sell it for insane proffits, companies actually hate positive change in general, so for a company to make something like this it would need to be a hobbyist or startup.
still has great potential indeed.
but might wanna change the design to something which for example uses fibers and expoxy to make a hard shell and to figure out some kind of special mirror coating. would be cheaper and also more durable.
one big advantage of your version however is that it could be made foldable.
want to make it take of then essentially make something like a popup tent, which can easily be folded into a small form and then just pop back, doesn't need to work perfectly so wrinkles aren't a big problem, just well enough to for example cook with it and generate some energy even if it uses peltier or such to do so, just something people might wanna take along on a hike, something chinese companies might start selling on aliexpress and such once that happens companies are forced to also make similar systems, which will evolve in similar systems optimized to be used on a fixed location and higher efficiency.
You can make a catenary dish by placing a small air pump in a large bowl, glue the mylar then suck out air until focus. But large scale is best to use a roll of steel roof sheet curved to focus on a pipe
NEW VID!!!!!!!!!!! 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼❤️
How can we work with this guy? Connect him with a university somewhere?
Go to center of UA, here as you can see they are no war.
@@SiBex_ovh Missiles can land in Lviv, Odesa, Rivne - anywhere at all. So top marks to Sergiy for his continuous work ij a potentially dangerous background.
Human touch is what makes everything expensive. By trying to minimize that, the low overall cost could be achieved in both lifetime expense and manufacturing.
'Bubble forming' plastic by blowing and then using the latest car chrome surface treatment? Or maybe 'hydroforming' metal sphere with a pressure washer? The car industry has spent enormous sums to investigate how to make such treatments last longer. Another way could be making metal spheres by exploding underwater, or simply just deep drawing stainless steel in a mold (if there is enough capital available to make the mold). Polishing the deep-drawn metal receiver could make it last forever. A long-lasting, dust and dirt-repelling, care-free surface could be achieved by using the same self-healing nanoparticle lacquer used in the most expensive German cars.
With a very large format 3d printer you might be able to create a framework for the film that would result in sharper focus and an increase in efficiency. This way you could experiment with frame geometry and ultimately injection mold the frame. I think you are correct that this mirror film holds great promise for concentrated solar, but it's also possible there are cheaper ways to manufacture parabolic mirror systems e.g. stretch forming or metal stamping. The tooling would be much more expensive, but the lifetime system cost could be lower
Здравствуйте, Сергей. Попробуйте использовать алюминиевую фольгу, которую можно приклеить между двумя прозрачными плёнками. Возможно, такой вариант будет даже лучше, потому что фольга не выгорает на Солнце.
i live in a HOT climate with brutal sun during the day this would be interesting but i expect the reflective film will only last one month
Try it. Put some mylar in direct sunlight and check on it periodically.
what abut alu foil - probably needs to be a part of composite to hold against dmage, but should last. I dont like idea of plastics because they easily break dow under UV. I can see it a lot in construction materials, fencescovered in greeen mesh, tear into pices just by wind, small pieces all around prperties and so on.
Excellent work! Have you had any luck turning this captured heat into usable electricity in cost-effective ways? That seems like the hardest part to me.
only for your own house ....in the countryside becaeeu it requires space. in comparison the solar flower is very expensive, but it also stores electricity over night and is transportable and has "install in one go", as we know solar panels don't work very well in the very hot sun.... and also require regular cleaning of the solar panel. (maintenance)
What happens to the stainless steel sheets when heated or hot loaded road tankers are taken out of operation ?
Боже,слушать это невыносимо,но ролик супер. Говорите на большую аудиторию на своём языке,будет очень хорошее восприятие. А так слово не лезет в ухо.
Спасибо.
What is the temp of the mirror surface and/or frame at solar noon? If it is below melting point of 3d printing high end material, could you use Elegoos Orange large format 3d printer to optimize the frame shape?
Have you tried rotating plater of paris to make a parabolic dish?
Do you have adress, where the film can be ordered? Is this similar to a space blanket used in first aid kids? Have you thought about creating the shape using a air tight frame and a slight vacuum to create a parabolic shape?
Have you heard of Alterno Sand Battery?
Forget about water. Use alcohol, ammonia, or other fluid than water, which had less caloric density, so demands less calories to turn into vapor and move a miniturbine attach to an electric alternator.
Love it all, but there's no way it will survive in any crosswind
what if you take a tupperware with the film on top and make the vacum inside the container? would it create a perfect mirror and would ir be easy to focus the beam by controlling the air inside? oh... thermal expansion would be a problem but what if you use liquid instead? too heavy?
How much sun is required for this method to work? I live in a place where cloud cover is more often than sunny days.
I was thinking of making solar tracking mirrors that send sun through my north facing windows in winter.
what is the material of the wire is it copper or iron is it hard or flexible
how one does factory production is not the same way as one would do production in small batches. the key word is consistency, absolutely everything must be the same.
the choice of material for production. wood is great but it's not always 100% the same from board to board, so you can cut it down to force it to be 100% the same OR you can switch to metal, plastic, resin or consistent ply wood. resin is expensive even industrially. injection plastic requires expensive molds. maybe striped bamboo might give you consistency but I would try cutting bending thin steel sheets gaining strength by the folds. I would attach everything with cheap spot welds and folded tabs. all that can be done by a shop and then move to fast industrial stamping.
the steel wire rods annealing and controlled cooling is how you get a consistent flexibility but it's expensive to do it that way, but you might also try thin steel sheets cut in to ribbons.
so the whole thing could be made from just 2 consistent materials thin steel plate and the reflective sheets. I would try to see if you could chrome paint the steel like a a old car bumper for the reflective to make it one material, but the reflective film is just so cheep.
I would attach the film in the factory by bending folds over a flat frame, but have a place to lock nuts in to place so the frame holding down the sheet could be reattached by nut and bolt by the customer when the time comes. they buy the nut and bolt and film square for them to do the replacement.
their is a process known as vacuum forming I would try something like that for actually heating up the sheet and putting it on. alternatively you could do the whole heater by vacuum forming. making 2 sides and gluing the two sides together then filling with sand at location so it does not blow away, but that seems like it would be easier said then done, and I would suspect you would have many unhappy customers at highly not durable construction but I could be wrong.
keep up the good work.
Знайомий голос !!! думав, що канал зник... Аж ось! Чи буде щось українською (чи вже є) ? Дякую!
where is this pvc foil for sale?
Сереж, я тоже хотел такую штуку в далеком 2006том сделать. Если интересно - могу идеи для изделий - видео подкинуть.
Можно сделать надувную такую конструкцию. Из полиэтиленовой трубы (она представляет собой трубу) а эту пленку можно сделать там как мембрану (вдоль), с разным давлением по сторонам, это давление теоретически должно сформировать параболу.
Это все кажется беполезным, но до того момента - пока не сделать эту штуку огромной, и использовать потом температуру фокуса для работы например газотурбинного двигателя. Эти штуки можно сделать летающими (но уже не дома конечно на коленке, но идею могут заметить). Можно сделать мобильными. Если сделать это в виде шара большого (метров 10) то можно серьезные мощности получать.(извини за сумбур в описании, спешу, если что можно подробнеее обсудить)
У него было видео с такими шарами на другом канале. У таких шаров одна проблема - непонятно как доставлять тепло на землю. А если тепло перерабатывать в электричество прямо в воздухе, то такие шары будут много весить.
ruclips.net/video/C47jp7fKetE/видео.html
@@intellectualcat4000 такие шары могут летать используя энергию солнца. А это = дешевая логистика, по крайней мере грузов.
Точка фокуса - горячая камера газотурбинного движка, дешево и вполне жизнеспособно.
@@Mariupol_Kraft Не знаю, надо подумать. Можно запустить дополнительные прозрачные шары, наполненные гелием или водородом, которые держали бы всю конструкцию. А вместо зеркал использовать линзы Френеля, чтобы конструкция была прозрачной и не давала слишком большой тени.
use vacuum, you will get perfect parabolic mirror.
est il possible de l avoir en francais? merci
There isn’t much money to be made selling cheap electricity or heating.
how do i store the thermal heat for longer?
Underground, in insulated water or sand.
Heat a big water or glycol tank and then cycle it throughout the area you wanna heat.
They work fine but they must follow the sun. The hard part.
sergei yıllardır izliyorum.İstanbuldan yazıyorum kışları evleri doğalgazdan daha uyguna ısıtma şansımız varmı? biz gazı sizden alıyor 3 misli pahaliya devlet bize satıyor
а что если сделать форму и просто лить в неё а потом красить или обтягивать
🟨🟦
Одну помилку в своїх розрахунках ви робите: не враховуєте ціну оренди/плати за землю. Всі Ваші системи розраховані на необмежені площі, що в реальному житті не так, тому використання систем з кращим коефіцієнтом відбиття може бути більш доцільним! Та й нікому не захочеться ходити після кожного шторму/урагану міняти плівки.
А так для домашнього використання норм!
hey sergiy do you have paypal? i want to give you a tip for the videos i watch for years now
W la russia
You still in home, not protect your country ?
I think this man is more useful to society and his country in his backyard :)
Installing different types of solar energy facilities is literally helping Kharkiv oblast from a total blackout following Russian bombardments of the main coalpower plants. Working for energy resilience is actually a crucial part of protecting a war-torn country.
@@petterbirgersson4489 Say that to all who die for him.
@@EndangeredMrmot Say that to all who die for him.
@@SiBex_ovh you posting form the frontline are you?
New PV now days cost less than less than 9c/Wp and used 250W panels go for 2-4c/wp . LiFePo4 also goes for less than $50/kwh and with the rise of sodium chemistry will become even cheaper the next 5 years. It will be very difficult to beat those prices... Price are already dirt (as in the price of ore) cheap... Cheap renewable energy is basically a solved problem. The only technical/industrial hurdle left is seasonal storage and bulk transport trough H2 - LOCH or ammonia route which is also a 'solved' problem just not industrialized like PV and LPF production. As I said renewable energy will be dirt cheap in 10 years. Most work will be building those GW PV plants in remote desert areas at industrial scale.
Solidstate PV last 20+ years without any maintenance and less than 10% degradation in practice... The tech is almost impossible to beat on LCOS. The only reason too replace the older generation panels is because higher wattage per/m2 for the newer generation. But then again, m2 are dirt cheap in the dessert.... so basically no depreciation on the panels driving the LCOS 0 cent per kwh.... Thermal solar to electricity is lost cause..
You know how they wrap cars with film?!
How about wrapping a parabolic dish?!
They can recycle the film and keep wrapping new film on the old dish.