This effect results in the heating of enclosed spaces into which the sun shines through a transparent material such as glass or plastic. Visible light easily passes through the glass and is absorbed and reflected by materials within the enclosed space.
The light energy that is absorbed by dark pots and the dark absorber plate underneath the pots is converted into longer wavelength heat energy and radiates from the interior materials. Most of this radiant energy, because it is of a longer wavelength, cannot pass back out through the glass and is therefore trapped within the enclosed space.
The population of Solar Cookers International is 5.
The three different types of solar cookers are box, panel,and parabolic.
No.
Solar cookers stop working at night, and work less well if the sky is heavily overcast.
A parabolic is an improved box cooker.
y
5
The intensity of heat (fire) needed for frying or making chapatis is not available in solar cookers.
he built it whit a 4 glass boxes one in side each other so the light can shine through the glass box to heat his food he is horace de saussure
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