Tuesday, March 28, 2017

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

December 24, 2011 by  
Filed under Guest Articles on Low Cost Heating

greenpowerscience.com 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. henderman2008 says:

    I love your videos… very very interesting and informative… great work!! One question though… where can I buy the ‘Copper Looping System’ shown in the video (the heat exchanger piece). Is it something that could be built at home… or better to be purchased? I really appreciate your videos… A+!! Thanks!!

  2. StinkyWater28 says:

    @GREENPOWERSCIENCE whats the difference between spot and linear lenses in terms of the ability to burn things?

  3. AnUnlimitedRecord says:

    Hey Dan/wife,

    Your efforts in promoting alternative energy technologies are admirable!

    Just wondering what kind of videocamera you use?

  4. DarthMai says:

    This is good but you have to consider the scale that will form inside tubes…pool water has high alkalinity, high hardness, or salinity (for salted pools)…flow rate would be important to prevent any scale formation.

  5. CJLeTeff says:

    Dan, thanks for putting out the video. Question, would this not give better results if copper tubes were black as well as the back plate?

  6. savagenomore says:

    I’d like to see him stick his hand under that….

  7. olzzn says:

    You should cast a soild block with tubing inside for more effective surface area

  8. redrosejewelry says:

    Any ideas on how to adapt it to work for an above ground pool? Runs with a 3/4 hp Hayward pump and filter with standard 1 1/2″ pvc fittings for the hoses. My main question is how to connect the larger fittings/hoses to the smaller copper.

  9. utsports says:

    thanks for your videos Ive learned a lot lots of good Idea’s

  10. kcummings545 says:

    Your video was helpful and a good start for us learning about fresnel lens.
    How did you keep the water flowing? with a pump or did you siphon the water and somehow got it moving?
    BTW, are you in TX? the birds in the background reminded me of birds I’ve heard in Texas.

  11. MistaJayRock says:

    These things are great. I thought KipKay was the only one who knew about the secret Death Ray Lens inside old projector TV screens. Nice lens in this vid. I found a REALLY poweful one inside a Hitachi Ultravision TV from the mid 90′s. Dan, do you think the lenses from old overhead projectors are stronger that the ones that come from the televisions?

  12. MistaJayRock says:

    These things are great. I thought KipKay was the only one who knew about the secret Death Ray Lens inside old projector TV screens. Nice lens in this vid. I found a REALLY poweful one inside Hitachi Ultravision TV from the mid 90′s. Dan, do you think the lenses from old overhead projectors are stronger that the ones that come from the televisions?

  13. av8rdav says:

    Do you have to keep moving the lens to keep it on your heat exchanger as the planet rotates? Like a telescope?

  14. a10fjet says:

    why not paint the copper black? MAXIMUM EFFICACY

  15. DrFox2000 says:

    Excellent idea and like that blooper too, keep up the fine work.

  16. ytoobpg says:

    @GREENPOWERSCIENCE I like the black plastic idea too, but would that end up being something requiring periodic replacement in a the high desert where the UV can be really strong?

  17. pamil092 says:

    @diamencik1 its actually probably from a old tv… check out kipkay’s solar death ray!

  18. knoose says:

    @bashiryu sun, steam, generator, batterie, electricity.

  19. Evilfisher says:

    more carbon tax

  20. MrEnergyCzar says:

    This is brilliant Dan, brilliant….

  21. b18k4705 says:

    theres a bug on your right at 3.31… :)

  22. andysim232 says:

    lool bloober!

  23. TheLeilisa says:

    what’s the ideal height for swimming?

  24. longboardingmonkey says:

    at 3:33< something ran down that big palm leaf ting in the back, lol

  25. buddcinder says:

    @bashiryu Heat water to turn a turbine.Directing the beam at a boiler. A telescopes gps could be used to keep track with the sun. The heat is incredible so boiling water is easy. This will run a steam engine. This method here could heat your house with in floor heating.(much smaller that the glass tube systems).
    I just got mine out of my 52″ Panasonic floor model 1985. Can’t wait for a sunny day to melt some concrete.

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