Types of Solar Cooker

 

Basically there are three designs of solar cooker

1. Flat plate box type solar cooker with or without Reflector.

2. Multi Reflector type solar cooker.

3. Parabolic disc concentrator type solar cooker.

Flat plate box type design is the simplest of all the designs. This cooker allows solar radiation to enter through a double walled glass cover placed inside a blackened box which is well insulated and made airtight. Maximum no load temperature with a single reflector reaches up to 160^oC. In Multi Reflector type, four square or triangular or rectangular reflectors are mounted on the oven body. They all reflect the solar radiation into the cooking zone in which cooking utensils are placed. Temperature obtained is of the order of 200^oC. The maximum temperature can reach to 250^oC if the compound cone reflector system is used.

In parabolic type cooker, parallel sun’s rays are made to reflect on a parabolic surface and concentrated on a focus on which the Utensils for cooking are placed. The temperature of the order of 450^oC can be obtained in which solar radiation are concentrated on to a focal point