FRESNEL LENS SOLAR HOT WATER, Heat Solar Pool Heater Solar Swimming Pool Heater

This is a large Fresnel Lens focused on a copper tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit....


This is a large Fresnel Lens focused on a copper tube with a 12 V pump (powered by two 6 watt solar panels) with water circulating through the unit. Water, seven gallons, was raised from 63 F to 106 F in one hour. It is not super efficient as heat is lost at the open top of the glass tank. This is designed to illustrate one method of solar heating a swilling pool with a Large Fresnel Lens. TESTING HDD AQUA BLOCK.

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25 Responses to “FRESNEL LENS SOLAR HOT WATER, Heat Solar Pool Heater Solar Swimming Pool Heater”

  1. mspacone says:

    What camera do you use for the slow motion stuff?

  2. sirnicholson says:

    nescisary necisary nessseccary

  3. fbueno123 says:

    I think, if you put the watter higher , you will not need the pump

  4. ZER0EVO says:

    lol this dude someday will accidently set his house on fire.

  5. 23crazykid23 says:

    did you see the mouse in the leaf at 3:23

  6. l33thustla says:

    oh oki, I had no ideas, but thanks :D But is that thing also from tv? (glass stuff)

  7. GREENPOWERSCIENCE says:

    Some are, some are from 90’s stage production special effects systems, Newer tv’s have weak lenses for solar.

  8. sjh7132 says:

    106F – 63F = 43F degrees = 23C degrees
    7 gals of water = 26 liters = 26 Kg (approx)
    Specific heat of water = 4.2Kj/Kg*C
    1 hour = 3600 seconds
    Total energy = 2511 Kj in 3600 seconds
    power = 697 watts.

    I think it would take a while to heat a pool. The black hose probably puts out more power because it has more area. You can also just put black plastic in the pool.

  9. sjh7132 says:

    Yes, his black hose heater uses that same idea. Just have a long black hose (coiled) in the sun and it will heat water.

  10. 1Scrub1 says:

    fbueno123, are you thinking of thermal cycling? I agree. The temperature difference would make the cold fall, but the path up would have to be pretty vertical and clear for good motion. And have mercy if he simply roughed up the copper and put a light captivating coating on it. He’s losing a GREAT percentage of energy through reflection. informative presentation, thank you.

  11. GREENPOWERSCIENCE says:

    Black plastic is a great idea. Winter is tough because the sun is lower, most pools do not get bottom direct sun. Cheap yardsale mirrors and plastic drop cloth with some weights. $30 pool heater:-)

  12. sjh7132 says:

    If you put a little Styrofoam under the plastic, maybe it could float halfway up to get more of the sun at a shallow angle.

  13. smegingbastard says:

    Do you need a pump? Isn’t there a way to make the heat pump the water?

  14. im4osu2ru says:

    What is the name of the copper part you are using?

  15. Daemo4 says:

    LoL at the blooper! I’ve done that with a gallon of milk before.

  16. JonDeth says:

    You know with a half globe lens set up and sealed to ground, ground insulation and a large radiator in the center of it, you could heat an exponential amount of water even during the winter.

  17. Christopher711 says:

    ah , where can i find out more?

  18. Christopher711 says:

    Sounds like one of these would work great in a bath tub in a motor home.

  19. JonDeth says:

    It would be something you would construct on your own. Say build a wood framing of a very small scale-maybe 3 feet in diameter and 2-3 feet in height, and then place a lens in each panel that aims the light source at your radiator,

    This ensures any light beams directly where you need it and there’s no adjusting. With the costs of the lens, some plexi to seal up the “igloo” panels before attaching the lenses, probably run a couple hundred dollars but wood be very efficient.

  20. PsycoDirector says:

    what would happen if you were to send the ray through a second glass? would it dolute it or strenghten it?

  21. GREENPOWERSCIENCE says:

    @PsycoDirector

    Hi,

    You would concentrate it to a smaller area. The power would not increase on heat a smaller area hotter.

  22. essex2 says:

    Hi Dan, what if you were to have a black basestation at the bottom of the pool that could retain the heat of the light beaming through the water? or even if you were to tile or paint the bottom of the pool black? do you think this could work for heating without a tubing system by focusing the lens directly into the pool?

  23. ryancrazy1 says:

    3:30 OMG I SEE A lizard/gecko on the leafy plant in the background lol :D

    and nice blooper

  24. diamencik1 says:

    where do U buy this big Magniffying Glass? Plese help me with the info ..

  25. GREENPOWERSCIENCE says:

    Check our website for a link.

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