If you're going to lay out that much black sheet metal, why not make it thin copper sheet with a loop of copper tubing behind it and fill it with water (or antifreeze soluteion?) Put a little insulation under it and some glass over it.
Then you can collect the heat at a higher temperature, pipe it to an efficient heat engine, and perhaps use some of it through a heat exchanger to heat your water and house.
barrels are given away if they are damaged in many area's and a small turbine is fairly easy to construct and fit within either the pipe of a funnel/manifold connected to either one or several of the pipes.
i don't know about the rest of you guys, but have you ever been on the upside of an irrigation or drain pipe in the hot kansas sun in the summer time,, the airflow is like a blast furnace and come out with some force, and they arent black, very large in diameter or as long.
my question isn't how inefficient it might be but rather if anyone has seen any reference to anyone trying it?
fair enough? :)
bob g[ Parent ]
