OU Pool heater?

[Yucca]

OK buzneg, I think I know what you're talking about now: it's a mechanical water heater using rotating cylinder with holes drilled in it, this rotates in a close fitting sleeve with holes in it too. The shear forces cause cavitation of the water which gives more heat out than mechanical energy in.

I'm not sure of the name of these devices, but I remember seeing a video where one was installed in a firestation as a water heater for the firecrew, the local university checked it out and yes, it was disobeying thermodynamic "laws".

Sorry if my solar post was off topic but I didn't know what you were getting at with the first post.

[z.monkey]

Howdy Yucca,

Nice spirals.  Excelente!  I have a brother in Germany who is building a black tube solar water heater to supply the hot water in his loft.  That radiant energy is everywhere...

Blessed be...

[myrmex]

OK buzneg, I think I know what you're talking about now: it's a mechanical water heater using rotating cylinder with holes drilled in it, this rotates in a close fitting sleeve with holes in it too. The shear forces cause cavitation of the water which gives more heat out than mechanical energy in.

I'm not sure of the name of these devices, but I remember seeing a video where one was installed in a firestation as a water heater for the firecrew, the local university checked it out and yes, it was disobeying thermodynamic "laws".

Sorry if my solar post was off topic but I didn't know what you were getting at with the first post.

i beleive you're talking about this one here :

http://ca.youtube.com/watch?v=yh_-DUKQ4Uw&feature=related

[Yucca]

Yep, that's exactly it, in fact that's a clip off the very TV program I've seen.

So the subject in hand is called "Hydro-Sonic Pump" or HSP.

[buzneg]

This is what I'm talking about, I guess it is powered by the sun.

http://www.heat-perfector.fr/

Check out their pump, and heat exchanger. These things put out a lot of KW. and the 30KW (37-6) is only 3 cubed. If something could only convert the heat to KW efficiently.. even 10 or 20% efficient.