Solar panel

DETAILED DESCRIPTION It is therefore an object of this invention to provide an economical process for heating a swimming pool.
It is another object of this invention to provide a solar panel with individual panel flow controls which utilize no tubes to clog or leak and uses about one-third the area of tube collectors.
It is yet another object of this invention to provide a solar panel which saves energy of existing heaters.
Still other objects will be apparent to those skilled in the art from the following description of this invention.
The foregoing objects are achieved according to the practice of this invention.
Broadly, this invention includes a process for heating water in a swimming pool, or the like, comprising dimpling at least one of at least two corrugated heat retention surfaces at a depth between about 1/4 inch and 1/2 inch; mating the heat retention surfaces, the mated surfaces being retained at a distance from each other depending on the depth of the dimpling step; orificing one end of the mated surfaces to control the flow of water between the mated surfaces; installing at least one pair of the mated surfaces on a means for exposing the mated surfaces to the sun in proximity to the swimming pool or the like; pumping water from the swimming pool, or the like, to the orificed end of the mated surfaces; flowing water through the mated surfaces toward an outlet therein at a rate of between about 10 lbs.
/sq.
ft.
of mated heat retention surface/min.
and about 200 lbs/sq.
ft.
of mated heat retention surface/min.
such as to form a water film exposed to the sun, the flow rate being determined by the orificing step; absorbing into the flowing water film between about 1250 BTU's/day/sq.
ft.
of mated heat retention surface and 2500 BTU's/day/sq.
ft.
of mated heat retention surface; and returning the BTU absorbed water from the outlet to the swimming pool or the like.
The solar panel comprises at least two corrugated heat retention surfaces, each of which include a pair of opposite sides and opposing ends