Basically, a solar box cooker is a tin foil lined box. Food is placed inside and the box is pointed towards the sun. A glass cover keeps out draughts and traps the heat inside. The tin foil lined top of the box is angled to concentrate the rays directly towards the food.
A parabolic is an improved box cooker.
The three different types of solar cookers are box, panel,and parabolic.
The population of Solar Cookers International is 5.
No.
Solar cookers stop working at night, and work less well if the sky is heavily overcast.
5
y
The intensity of heat (fire) needed for frying or making chapatis is not available in solar cookers.
South Africa is a relatively large country with a substantial rural population, so the potential for relatively simple and inexpensive solar cookers is high, but be warned you will need a method to market and distribute the solar cookers to the rural areas.
There are a number of retailers which offer solar cookers. You can try visiting websites such as India Mart and Sun Oven to see some examples of what is on offer.
in your backyard
Because if we will not paint then the heat is reflect on the solar cooker