DIY flat plate solar collector from cheap solar pool heater
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- Опубликовано: 2 окт 2024
- We know about these solar heaters which are used to heat water of a pool, and many of you came up with the idea of turning them into similar flat plate solar collectors because these collectors are several times more expensive than the solar pool heaters. Let's take a look at how I put this idea into practice when I used this solar pool heater, put it on a sheet of expanded polystyrene, and covered it with a cheap transparent film. But it is obvious that such solar collector will be more efficient if we use a glass sheet or a cellular polycarbonate instead of the transparent film.
This is one of my experiments, and here we see that water leaves the solar pool heater under a transparent film, and the water temperature is almost 95 ºC when the ambient temperature was 26 ºC. But this water was not moving inside the heater for a long time, and it is obvious that the heating temperature will be less if the water is circulated through the heater.
This is another my experiment when the pool heater under the transparent film has heated twenty six liters of water of this tank from a temperature of 20 ºC to 55 ºC for 2 hours. But now I show the sky during that heating, and we see that a large number of clouds prevented the heating to a higher temperature, and the ambient temperature was only 20 ºC.
So, we have many opportunities to buy a solar pool heater, and cover it with a transparent film, glass sheet or cellular polycarbonate. But I used this pool heater which was made in China from two glued PVC films with a thickness of about 0.5 mm and with these dimensions. Now I am showing the proposals of different sellers of that Chinese solar heater, and I bought it for $18 from one of the Ukrainian sellers. We can calculate that it is about 12 $ / sq. m of the black heater including these unnecessary plastic things.
We must understand that it is several times cheaper than these conventional pool heaters, and this solar collector based on that Chinese heater is about 10 times cheaper than these flat plate solar collectors which consist of this glass, this thermal insulation, and this expensive metal absorber that we replace by this cheap Chinese polymer product or by some other inexpensive solar pool heater.
However let's take a look at the disadvantages of our homemade solar collector compared to these expensive collectors. First, the efficiency of our homemade collector will be worse, and I will compare their heat production with expensive collectors in a few minutes.
Secondly, these pool heaters usually have a shorter lifespan because solar radiation is gradually destroying their polymers. In addition, their lifespan will be even less due to the fact that we violate their operation manual when we cover them with a transparent film, glass or other type of transparent sheets.
Third, we know that these expensive flat-plate solar collectors are able to withstand high temperatures of about 200 ºC during their stagnation. But it is obvious that the polymers of these pool heaters can be destroyed by the high temperature of their stagnation under a glass sheet or other transparent covering. Therefore they require such experiments which have already been done by me for cases of the stagnation of that Chinese heater under a transparent film, and the last minutes of this video will show these experiments.
This cheap Chinese heater has additional problems, and for example, it has these three inlets and outlets instead of the conventional two, and these inlets have an inconvenient direction. In addition, the outer diameter of the inlets and outlets is too large, and it is = 32 mm. Moreover, we see these signs of deformation of the Chinese heater when it is filled with water, and these deformations can prevent its fixation inside the body of its solar collector. 
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Way better with your own voice instead of the robot voice! Keep up the job. I love it!
I had grown to love that robot voice
You never heard a Russian accent?
Hi can I use part of your video to my compilation homemade inventions ?
Hi,great work. i would sugest measuring not only the outcoming water temp, but also the ingoing water temperature with flow rate, to calculate energy captured. The outgoing temperature of water after standing still for a few hours doesnt mean much.
Of course if you are running the water through the heater faster you can decrease the maximum temperature the collector experiences. I also imagine the plastic cover decreases the UV that degrades the collector. You will have to change the plastic cover more frequently, but it is cheap compared to replacing the collector.
Super video dude.
Thanks a lot for all your hard work to give us these details.
is it possible to do this right behind a window in your home? but with air and solar powered ventilators?
Try using cellular concrete (also known as air-entrained concrete, aircrete, or foam cement) instead of styrofoam... it won't degrade under heat. It is 'fragile' when the air-entrained concrete is made, but withstands heat well and is better insulator than many materials when pumped full of air. I make collectors with cellular concrete and focus on insulating and maximum heat transfer to minimize size for maximum efficiency.
It works great. I couldnt use it though for my back yard. The pool pump was to far from any sun.
@ Sergiy Yergo
I have some thoughts you might be interested in. My friend had a 10-15 ft diameter pool above ground. He covered it with a insulating pool cover. He also added a solar collector to heat the pool. There was only two or three of them when I looked.
He told me that the temperature got so hot that he had to shut the solar collectors off because steam was coming off the pool.
So a pool with a thousand gallons or so water is a much better heat reservoir than building something in your house.
There are RUclips videos on how to build your own outdoor pool above ground from plastic sheet and shipping containers and ratchet straps to hold it all together.
I recommend you go to billboard tarps where you can buy anywhere from 10 to 50 mm thick commercial grade UV resistant billboard tarps in any size you want used or new.
You need to have a pool cover to hold in the heat and whatever solar panels you wish to use to heat the pool as your source of hot water for the house.
And the dead of winter on a cold day in New York City, I believe it got up 120° and he was afraid it would melt the plastic pool liner, so he shut the solar collector off.
Separately he pointed out the fact that this above ground outdoor pool is also a good source of a lot of water in case you have to put out a house fire and recommended hooking up a pump and hose in case you ever had to do fire safety on the property and put out a fire. An added benefit to this system.
Amazing
You should use clear-coat with UV protection to keep the plastics from breaking down!
I couldn't understand the part when you said that it might seem the homemade solar heater would be better, but they don't have.......I can't understand that part and it is important as I am going to make one.
He means it’s more expensive the. A cheaper option.
Where to buy the Chinese heater. Pls provide link or exact name/description.
I made one with a central heating radiator for my hot water for a while....put it in a wooden box with thin reflective foil for insulation. Worked OK, it was only a very small one and I didn't monitor temps...it could have been much improved. I now use an immersion element from photovoltaic because it is maintenance free. It would be good to see you try this with your scientific approach and discipline. Best wishes. FreeJulianAssangeFreePalestineFreeUsAll.
Central heating radiators will rust after a while and you will have dirty rusty water. Unless you use a aluminium (so it doesn’t rust) truck or car radiator and paint that mat black (to absorb the heat).
@@harunyahyadotorg They only rust in the presence of oxygen, which gets removed in an indirect system. Aluminium rads are good and a better conductor, both are available cheap or free second hand. I have a small collection for future projects. Best wishes.
@@harunyahyadotorg They only rust in the presence of oxygen, which gets removed in an indirect system. Aluminium rads are good and a better conductor, both are available cheap or free second hand. I have a small collection for future projects. Best wishes.
From were we can buy this
will these pvc heaters support using glycol?
Do you have a link for the pool heater...?
Thank you. Good video. I have three of these Chinese heaters. Use some aluminum foil for heated floors and fire proof insulation under the Chinese heater this should solve foam meltdown problem in extreme situation.
Interesting! You should regulate the flow in order to keep a constant output temperature, you can use an arduino a pump and a temperature sensor for that. It should stay cheep. If you have questions about electronics, i can help you.
I was thinking of designing a house with a wall oriented to catch the most sunlight during winter. The wall would have a system of mirrors to divert light into a water tank. My goal is to evaporate the water as a first step in filtering it. That should make it 99.9% pure. With this i can take various waste waters or well or rain water and get useable water out of it.
I found a video where a guy explained the bigger and more insulated a water tank the better and longer it stays hot.
I could run a water line through this solar tank and heat the water line. Similar to a compost water heater. The question is how much light is needed to eventually heat and maintain a 500 gallon tank? That will define how long or tall a wall is needed. If i can heat it for free during the day it might be possible to hold temp for the entire night.
We would have a good time if we ever had a chance to sit down with paper, pencil, and a couple beers. Wish I had someone to talk (that enjoyed this topic) once in a while.
Perhaps you should experiment with UV stabilized PP Pool heaters (xtremepowerUS) between double layer polycarbonate and isopolyurethane insulation
hello sergiy! why did you delete your old videos?
RUclips forced to delete them because of the robot voice. Some of my old videos are (and will be) on my 2nd channel named "Cheap Solar Heat"
Thank you, Sergiy. Your videos are excellent! 8-)
Thanks a lot sergiy, but y think you could put a Asphalt bed in each solar pool colector because recent search published in Brazil by our the usp university to proof that good Asphalt as bed for cooper tubes to maintannance its daily high thermal 50 o C up to 20:30 hours (8:30 PM)
Please, write a link
@@sergiyyurko8668 y have but only in portughese
www.portal-energia.com/betao-solar-fotovoltaico-desenvolvido-cientistas-mexicanos-147490/
Dear Sergiy...above, y sent you another porthuguese notice about recent search published by mexican university with good results of sun heater intensive capture by alone aspalth ("betão") bed with peretovistka stones
Sorry, because os the peroviskita stones
Switch the pump off when the water's hot and use a drain back design.
wax paper...should solve the sticky situation
Can we use coolant oil to absorb more heat and transfer the heat absorbed through a heat exchanger.
Nandlal Karwa water actually absorbs more heat. It has one of the highest specific heat capacities of any commonly available substance. Plus, it's not a potential contamination risk like oil- imagine getting several gallons of oil in your pool- specialist cleaning and safe disposal would be very expensive.
Also oil is an incredibly solvent that loves to degrade products made of similar materials... vinyls are oil based and oil be it petroleum based or vegi based will liquify cheap Chinese vinyl in a very short time...
Впервые второй раз подписываюсь на одного и того же человека)
all how many usd dollars and how many degrees of water temperature in winter?
Перевод появился и полгодика не прошло?)
А что насчёт тыльной стороны пакета? О увидел когда от пенопласта открывал, значит обновлённое видео. Можно те две трубки пустить через тыльную сторону (утеплитель)?
Для зимы это (пустить вход-выход через теплоизоляцию-утеплитель) будет плохим решением, поскольку если трубы входа-выхода будут южнее теплоизоляции, солнце будет быстро растапливать ледяные пробки, которые могут образоваться в трубах ночью
Only for camping
You misspelled “cheap”!
Thank you
If I were you, I would practice my pronunciation. it really s@#k!
If I were you, I’d stop telling people that their work sucks. Be nice.