diy solar concentrator -DIY Solar Tracking Parabolic Concentrator – The Story

April 11, 2012 – 9:24 am

** A better story than I could say himself. Www.bobfleckcreative.com from my good friend. For more information about the project: George www.ffwdm.com Plhak Video Rating: 4 / 5

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  1. 15 Responses to “diy solar concentrator -DIY Solar Tracking Parabolic Concentrator – The Story”

  2. A detailed Bill of Materials with parts cost is given at the link so you can work it out for the size you need. Of course, your labor is not included as it is DIY (Do It Yourself)

    By georgeplhak on Apr 11, 2012

  3. Do you know how your system compares in costs to the standard solar pool heating techniques of black pipes/bags on your roof?

    By freeRideFl0w on Apr 11, 2012

  4. For swimming pool heating, sealed collectors would not make any difference since the flow is so high the temperature rise is only a couple degrees. I am working on a vacuum sealed collector for a higher temp application.

    With careful design and construction, all of the light from the reflector falls on the collector. I can see this in the beam which does not extend off the collector.

    Thank you for your interest and comments

    By georgeplhak on Apr 11, 2012

  5. Did you ever consider vacuum sealing your collectors? Would it make any difference? Another idea are secondary reflectors, assuming the reflectors are not perfect use smaller parabolic reflectors mounted on top of the pipes, these may reflect less light than is actually directly shown on the pipe though. Another idea are fresnel lenses, easily attached to your current setup. Perhaps do these tests to one of your troughs and measure the improvements.

    By freeRideFl0w on Apr 11, 2012

  6. Thanks for your kind comment. As for how long it would take YOU to make such a collector yourself I am afraid I cannot tell you if your estimates are accurate. I would have to make a few assumptions. The best thing might be to buy the book (the down loadable version is inexpensive), look over the detailed instructions and suggestions I have given and then judge for yourself. There is a fair bit to the project and I would not like to present it as a “Anyone Can Do This In Their Spare Time!”

    By georgeplhak on Apr 11, 2012

  7. Great Video and Design! I wonder though, based on your estimates in the video it would take me a minimum of 7 weeks to build a 13 array collector like yours. Is this accurate. I would like to think that once I had the materials I could build the whole thing in about 120 hours of work. Any thoughts?

    By adamdarrow on Apr 11, 2012

  8. Thank you! Please consider buying my book to help support more of this work.

    By georgeplhak on Apr 11, 2012

  9. very nice job man

    By janusz3269951 on Apr 11, 2012

  10. Good job george. Excelent presentation

    By jcanivan on Apr 11, 2012

  11. Thank you. When the sun is overhead and hottest the orientation really does not matter so much. At lower elevations (earlier/later in the day), if oriented east-west, the tracker would not work as hard agreed but more sunlight spills from the ends if the array is east-west so it is less efficient maybe by about 15% at those times. I don’t use it in the winter, so there is no seasonal adjustment for me.

    By georgeplhak on Apr 11, 2012

  12. Wouldn’t placing these 90 degrees from currently installed position work just as well, and require less azimuth compensation as the sun crosses the sky? Seasonal alignment would be mostly eliminated, no?
    Pretty great none the less

    By CTOL1 on Apr 11, 2012

  13. This is an elegant yet simple design. Are you planning to build another array to help heat your house in winter?

    By antronx007 on Apr 11, 2012

  14. Please see the link and the blog

    By georgeplhak on Apr 11, 2012

  15. how well does it work? that wasn’t mentioned

    By VillageIdiot8055 on Apr 11, 2012

  16. good way to heat the water for a in floor radiant heater? year round use idea?

    By VillageIdiot8055 on Apr 11, 2012

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