David Livingston wrote:I think this is one of those ideas that sounds good but it really needs the numbers punched in. Whilst the effects you describe are real the volume of water required may make them impractical .
The larger the system you have the more water you need . It looks to me like its one of those area volume things the ratio of the surface area against the volume goes against you . http://www.tiem.utk.edu/~gross/bioed/bealsmodules/area_volume.html
Jay Smithy wrote:Another video showing possibilities.
This video has one technical error - I would not call a wood-burning device "Endless". However, otherwise the device clearly works. If one successfully uses solar heat for heating the water, it also shows that without any electricity, pump, mechanical means or moving parts, water can be lifted at least 3-4 feet up and automatically circulated with only a check valve to make it function. (Some might try to classify a check valve as a moving part, lol)
Personally, I would add that this gentleman could improve his device by adding a coil around the outside of the chimney as a pre-heater before going into the inside directly heated coil.
The technical question remains how high can water be lifted through this general method, which might be quite high, or at least as high as needed to make the system work practically or better.
The challenge is then how best to cool the water to a temperature favorable to the fish.
Jay Smithy wrote:
Anyone want to take the challenge to figure out other viable alternatives???