Solar Cone Grill - 4 Cones

A solar cone grill is designed out of cones. Each cone is a segment of a cirle with a given diameter. Each cone has a different diamenter wich is indicated in the drawings. Each cone form a part of a parabolic shape heating excactly the same spot. The spot heated is depending on the size of the cones. Check also out Earth Bound Cookers fromhttp://solarcooking.wikia.com/wiki/EarthBound_Cooker.

I am here adding a new evolment on this type of design with four cones. One of these models is almost identical to the Earch Bound Cooker. I have just added a new cone on the top of the third cone. The other model is four cones up to 45 degree. This gives a solar grill that is more powerful than one with 3 cones. The focal pont or more right the focal sphere is 10 cm diameter.
I have changed the name of this model, due to the fact that I am using cones not sectors to form a parabolic shape. There are benefits to this. One idea is to focus the sun evenly on a sphere, not a point. Even with a big reflector the sphere could be just as big or small as you liked. By adding more cones to the 90-45 degrees area the solar grill would become bigger and bigger, but without loosing the focus zone.

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