Building Simple Solar Energy Generator

[optics.tech]

Hi everyone,

Can anyone tell me how to build simple solar energy generator for kid of age 5 – 7 year?

Please tell and send me with some drawing.

Thank you very much in advance

Huygen

 

[Topher925]

I don't think such a thing exists. You can make a solar powered water distiller or oven rather easily though.

 

[Bob S]

On a clear day, the solar insolation is about 1000 watts/meter ^3. Build a 1 meter diameter solar reflector using aluminum foil on cardboard, and focus it on a small metal pressure vessel (guess 1 liter) for producing steam. There are (or used to be) small toys for converting steam into rotational energy. Small toy dc electric motors with permanent magnet stators make pretty goog dc generators.

There are also some closed cycle solar heat engines that use sealed hot air as the convection gas for powering fans. See for example (among many sites)
http://www.redrok.com/engine.htm
http://www.youtube.com/watch?v=3s9I03aB3uw&feature=related
for both stirling engines and thermo-electric engines powering fans.