HOW TO MAKE A SOLAR COOKER?

Comenius team

Shpogy Secondary school

SOLAR COOKERA solar cooker uses the energy of the Sun to cook food. An essential part of the cooker is a reflector- a shiny surface that reflects and concentrates the Sun’s energy. They usually have parabolic shape, the size may differ.

VERY BIG RATHER SMALL

DIFFERENT TYPES OF SOLAR COOKER

• Three broad categories:• box cookers;• panel cookers;• reflector cookers.

the box cooker first built by Horace de Saussure in 1767; Reach temperature 90–150 °C

  focus light on a cooking container reach temperatures of 315 °C and above 

these are in use in Refugee camps around the world

LATVIAN SOLAR COOKER• To make a solar cooker we need a shiny surface to reflect

and concentrate the Sun’s energy

• We took a bowl:

LATVIAN SOLAR COOKER• We have few sunny days in winter. And the days are

pretty short that is the reason why we could not make a real solar cooker by using solar power.

• As an alternative, we took a lamp:

LATVIAN SOLAR COOKEROur first experiment, we did not cook food, but we tried to

melt a candle

In 40 minutes (after a lesson) we saw that the candle had

melted

BEFORE:

AFTER:

LATVIAN SOLAR COOKER• The we wanted to try to melt something edible

CHOCOLATE:

LATVIAN SOLAR COOKER• It was like:

«Has the chocolate melted?

Can we use it for decorating

the cake?»

• The aim was to have fun

and learn something new!

LATVIAN SOLAR COOKER

Science teachers

Mr.Švarcs and

Mr. Suveizda advised us to use a convex mirror to collect the light.

• Convex mirror

LATVIAN SOLAR COOKER

• As it was not a sunny day, we used a lamp, AGAIN

And we tried to find focus. We found it but it would take a lot of time to wait until the paper starts burning

LATVIAN SOLAR COOKER• Science teachers were mocking at us: «When your

cooker is ready, invite us to a barbecue party»

THIS : INSTEAD OF THIS:

LATVIAN SOLAR COOKER• In spring we will make a solar cooker by using solar

energy and not a lamp.

COMENIUS TEAM. The part of the team

Karīna,Laura and Jānis who are now in DramaAnd teachers Eva and Guna you probably remember