How to make a funnel solar cooker

Harnessing alternative energy is a popular global trend, as it promotes clean energy policies and lowers fuel costs. One of the most interesting inventions we can find in this area is the funnel solar cooker, developed by Stevens Jones, which combines the designs of the box solar cooker and the parabolic solar cooker, obtaining a better yield from solar radiation. In this article, we will look at how to make a funnel solar cooker based on the Stevens Jones design.

solar cooker

Materials

– Una lámina de cartón grande de dimensiones 60cm x120cm.

- Glue.

– Papel aluminio.

– Cinta adhesiva fuerte o de embalaje.

– Recipiente hermético.

– Tarro de vidrio o de plástico termoestable de color negro o pintado de negro mate (si el envase es de vidrio lo podemos pintar).

– Un trozo de madera de 10cmx10cm y un alto de 5cm.

– Una bolsa transparente de las usadas para envolver verduras o las utilizadas para hornear.

Setting up our solar cooker

The first step is to create a semicircle with the cardboard with dimensions that are proportional to the container or jar where the baking will take place. For example, if the container is 18cm in diameter, the diameter of the cardboard semicircle will be double, i.e. 36cm.

Solar cooker

Now, we form a funnel with the cardboard semicircle so that there is a sort of circle inside it where the container will go. Then, we line it with aluminium foil. To fix it, we use glue and make sure it is as smooth as possible and without wrinkles. Around the bottom hole of the funnel, we place aluminium foil and our kitchen is ready.

Funnel solar cooker

Place the wooden board inside the bag and place the cooking container on top of it. Now, inflate the bag with air and close it so that the hot air allows the cooking by convection and conduction. Place the bag at the bottom of the funnel, and place it in the sun for an hour and a half or more, according to the cooking charts below:

Source: Cienciafacil.com

 

0 thoughts on “Cómo hacer una cocina solar tipo embudo”

  1. it's great that there is this kind of information for everyone and even more so for those of us who like to make things!!!!! thanks

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