Solar Heating Panel SHP1

My panel was made with V8 vegetable juice cans which are about half the size of a regular beer cans and that makes for a smaller panel and since this is just a test project I think they will do.

The entire unit is made of 1 inch styrofoam (extruded polystyrene foam) with an R value of 40, a pane of glass and aluminum cans. The cans were stacked and held together with high temp silicone then painted flat black, once dry the stacks fit into the top and bottom headers and siliconed in place. Then the stacks and header assembly was fit into the center of a styrofoam box leaving about 8 inches at the top and bottom headers for the in and out vents then siliconed making sure there were no air gaps.
The vent adapters were made from plastic tubes cut from old javel containers to the same size as bathroom venting ducks, the vents were installed along with the pane of glass and siliconed.
It wasent very pretty so I used aluminum tape to docter it, heres the final product:



This is a shot of it inside the lab, I found that convection produced with this unit was not very good so I added a 12 volt computer fan which was controlled by a temperature sensor placed in the top vent.



As you can see the temperature coming out of the panel was 73 degrees celsius
Cheers Hitman

Update: 5/11/2012

The heat exchanger made with the cans has been completely removed which cut production time greatly, the clearance for the cans was almsot 2 inches and is now 3/4 in and brass wool is now the air refracter painted black of course along with the heat exchanger chamber.

Heres a quick CAD:



:: UPDATE AUG 29 2013 ::
Although this design works very well there is a major drawback to it, at night or on cloudy days there is zero heat production. As soon as the sun sets the room would quickly get cold and I would have to use conventional heating, so we have gone to a different method using the heat collected during sunny periods and storing the heat for use at night.


You can view the new article here.