solar collector design -Parabolic Trough Solar Collector water heater 3

April 27, 2013 – 12:21 am

** Part 4 is here: http://www.youtube.com/watch?v=xw5f4QQTyFk Inspired by George Plhák and Daniel Rojas (GreenPowerScience), this Parabolic Solar Water H. ..

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  1. 25 Responses to “solar collector design -Parabolic Trough Solar Collector water heater 3”

  2. I have tank-less water heaters starting at $119 at aswaterheaters(dot)com Free Shipping

    By aswaterheaterscom on Apr 27, 2013

  3. Particularly pay attention to how I fasten down the mirror sheets near the outside edge. If you have more questions after that, just let me know. Thanks to George Plhak! He also sells plans and templates. I have these as well. Andrew Ancel Gray

    By Andrew Ancel Gray on Apr 27, 2013

  4. I improved on the design of George Plhak. He has several videos on YouTube that explain how to make the troughs. You should watch these first. I live in Texas where we have large hailstones, so I used mirror stainless steel sheet instead of mirror plastic. After you view George’s videos, then look at all five of my videos to see the improvements that I made on the parabolic collectors.

    By Andrew Ancel Gray on Apr 27, 2013

  5. Certainly eloid. The reflectors are mirror stainless. Four 2′x5′ reflectors can be cut out of a 4′x10′ mirror stainless steel sheet;

    S420-HP 20 GA. T304 Stainless Steel Sheet – #8 MIRROR Polish

    I got it at metalsdepot on the web

    Get them to cut them into four 2′x5′ pieces. Ask them to crate them so the edges don’t get bent. The first shipment I got had the corners all bent up.

    By Andrew Ancel Gray on Apr 27, 2013

  6. can you post info about the reflect mirror film used on the collector
    ie the film name cost and where to buy it. Great build…
    can you post a video how you applied the film or made the collector.

    By eloid777 on Apr 27, 2013

  7. Thx, Berry. Well, we are going to make the 5th video in the series hopefully next week. Have you seen number 4? Anyway, the embedded controller is done.It’s November 1st, and with a vacuum around the focal pipes, I am getting about a 15 degree (F.) differential in the system. It seems like it is going to work in the winter. Yeah, the dish concept is good, but I think that troughs will ultimately prove more cost effective and able to put a vacuum around the focal pipes for winter.

    By Andrew Ancel Gray on Apr 27, 2013

  8. Right on man, brilliant design, simple… I still think the dish concept is key to control and efficiency but this really kicks the trough design up a notch! Way ta go!

    By Berry Sharp on Apr 27, 2013

  9. Well, conventional solar collectors typically heat 1.5 gallons per square foot of collector. So a conventional system has a 40 square foot collector and a 60-80 gallon tank. This parabolic collector follows the sun and has (4) 2×5 collectors = 40 square feet. So it SHOULD do better than a conventional system. We’ll soon see. Andrew Ancel Gray

    By Andrew Ancel Gray on Apr 27, 2013

  10. Are those 4 pipes enough?

    By hochmeiste on Apr 27, 2013

  11. Thanks for the kudos! I now have the electronics and software done so it is successfully tracking the sun and heating water! Hopefully, another video soon. Be sure to see part 4 as well (This is part 3) Andrew Ancel Gray

    By Andrew Ancel Gray on Apr 27, 2013

  12. very nice idea !

    By pipelasercutting on Apr 27, 2013

  13. And Oh, yes  9) one 2″ copper cap – nibco 627.5

    By Andrew Ancel Gray on Apr 27, 2013

  14. Parts List: 1) 6 feet of 1-1/2″ Copper Tubing 2) 6 feet of 2-1/2″ clear tubing, 1/8″ thick. 3) Two Fernco P1056-215 4) one 2″ x 1-1/2″ copper reducer bushing-Nibco 6002 2×11/2 5) two 1-1/4″ copper female adapters- Nibco C603 11/4 6) six inches of 1/8″ copper tubing for vacuum exhaust 7) two fabricated plywood spacers to center the clear vacuum tube 8) Finally, I used two 1-1/4″ CPVC male adapters to change to CPVC pipe.

    By Andrew Ancel Gray on Apr 27, 2013

  15. Take Zero “0″ out of org.

    By Andrew Ancel Gray on Apr 27, 2013

  16. Replace D0T with “.” Take spaces out of jpeg file extension (jpg)

    By Andrew Ancel Gray on Apr 27, 2013

  17. modelofreality D0T 0 r g / SolarFocalTube D0T J P G

    By Andrew Ancel Gray on Apr 27, 2013

  18. modelofreality D0T 0 r g

    By Andrew Ancel Gray on Apr 27, 2013

  19. MrZubair: Well, I think you must braze this copper tube to get what you need. I have prepared a schematic of the focal tube. YouTube is not allowing me to put in the Web address though. See next message. 

    By Andrew Ancel Gray on Apr 27, 2013

  20. I m planning to do it with glass.I guess its easy n inexpensive.Whats ur take?

    By Zubair Ahamed on Apr 27, 2013

  21. I m planning to use glass material.The budget is quite stringent so I need appropriate solutions.

    By Zubair Ahamed on Apr 27, 2013

  22. Well, I brazed some copper fittings onto my copper pipe to accept the rubber couplings that seal it. Then I bored a small hole through one of the fittings and brazed a 1/8″ copper vacuum tube through it for the evacuation path. Then I used a UV stabilized polycarbonate clear tube for the outer vacuum chamber.

    MrZubair, are you planning to use polycarbonate or glass? After this, I can make some suggestions. Andrew Ancel Gray

    By Andrew Ancel Gray on Apr 27, 2013

  23. No I havent tried anything like that.I am doing a small scale project for my coll so I need a cost effective way to build this evacuation chamber at the focal pt. I need some suggestions on this pls.

    By Zubair Ahamed on Apr 27, 2013

  24. Hi MrZubair, OK great! Yeah, I’ll show you how to build the vacuum chamber. Are you able to braze copper with a torch (or at least solder copper with a torch?) Do you want to build troughs like mine too? Andrew Ancel Gray

    By Andrew Ancel Gray on Apr 27, 2013

  25. Hi AAG. I need the entire details of the kit.I wish to make this trough so I need all the details abt them?? Especially how to build the copper tube in the evacuated chamber?? Pls get back to me soon.

    By Zubair Ahamed on Apr 27, 2013

  26. Slaam Khaan. Kya app mujhe bata sakte ho ke iska temperature kitna rise kar jata hai … kya hum ise steam produce karne keliye istemaal kar sakte hain jo baad main electricity produce karne keliye istimaal ho sake..

    By Prince Xeeshan on Apr 27, 2013

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