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Forum: Hydro/Wind/Wood/Geothermal 04-20-2013, 11:16 PM
Replies: 7
Views: 8,533
Posted By doc
I've been following wind & PV electricity...

I've been following wind & PV electricity generation since the 60s. Seems like "free energy" but it isn't. They always seem to keep the costs of apparatus just too high to be economically efficient,...
Forum: Hydro/Wind/Wood/Geothermal 04-19-2013, 10:49 PM
Replies: 7
Views: 8,533
Posted By doc
Compressing a fluid increases the temp of the...

Compressing a fluid increases the temp of the fluid. Think of it as dissipating the kinetic energy of the piston as thermal energy in the fluid. The problem is, using a wind mill to move a piston...
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