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TEG/Thermoelectric Power Harvesting

Discussion in 'Renewable Energy' started by Overclocked, Nov 22, 2014.

  1. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    Coiled radiators used to be common. When coiling the tubing, fill it with sand so the sides don't collapse -- unless you have a purpose made coiler. One advantage of multiple parallel tubes is probably greater flow rate.

    John
     
  2. Overclocked

    Overclocked Member

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    That would be an interesting idea, but I would need 2 pumps running at once. I could do passive tech, just have the coil sitting in a bath of ice water.

    I know enough that I have to anneal copper if I bend it, Ive had some practice when attempting to make a flash tube boiler.
     
  3. jpanhalt

    jpanhalt Well-Known Member Most Helpful Member

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    Some copper comes pre-annealed. I believe that condition is typical for "refrigeration" copper. However, my comment applied to almost any metal, including aluminum and SS. When we coiled glass, we had to rely on adjustable internal air pressure and heat, but that was a slow process.

    John
     
  4. dave

    Dave New Member

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  5. tcmtech

    tcmtech Well-Known Member Most Helpful Member

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    You could just get a cheap automotive heater core or a air conditioner evaporator core and use those as your radiator.

    No point in spending hours fabricating something that is already mass produced and cheap.
     
  6. Overclocked

    Overclocked Member

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    The problem there would be flow. Car heater cores use 5/8'' or greater connections. It wouldnt be a problem making one, but the tubes are so big that flow might be a problem since I am using 1/4'' line.
     
  7. Joe G

    Joe G Member

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    if you go from .25" into .625" the flow's speed will slow down giving it more time in the "exchanger", that is what you need to cool or heat more efficiently
     
  8. tcmtech

    tcmtech Well-Known Member Most Helpful Member

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    If your line sizes are large enough and are laid out properly you can get natural thermally induced convection to do the pumping work for you. ;)
     
  9. Overclocked

    Overclocked Member

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    Never thought of it that way. How I could arrange the whole sequence would be to put the pump after the reservoir, then followed by the cooling block, and then the radiator which would feed back into the reservoir. Assuming theres enough water in the reservoir, flow wouldn't be that much of a problem (in theory).

    ADD: I actually have a small radiator from a watercooling kit I was given. I'll have to make an adapter for it though.

    ADD2: I just tried it out with my small pump, no waterblock. It seems to keep the water level in the reservoir constant, which is good. It seems that there needs to be a small amount of water in the rad before any actually flows out, which Im assuming is good. Hopefully this weekend I'll be able to do stuff :).
     
    Last edited: Apr 23, 2015

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