2. 1.Presentation 2.Theoretical bases 3.Types of solar cookers 4.Introduction 5.Function 6.Solar cooker parts 7.Assembly process 8.Results 9.Conclusions

3. JoanJuan VictorAdriàJavier And our teacher Sergio

4. Solar thermal energy takes infrared radiation from the sun to generate heat. This type of energy is intended mainly in the production of 1) hot water 2) heating 3) hot water in swimming pools 4) electricity

5. These cookers consist in a box with a dark background, reflective walls, and double fold: The lower glass, and the top of reflective material. Such stoves are used for cooking slowly: food preparation take more or less double time than with a conventional oven, however, will not come to burn. 3.1) Box Cookers

6. 3.2) Portable Cookers A portable solar cooker, PSC, was created by xCRUZA’s Laboratory with the premise and the objective to collaborate with the socialization of the use of renewable and nonpolluting energies, through the simplification and the optimization of the existing technologies.

7. 3.3 Parabolic Cookers This type of oven is usually based on a concave disc that focuses the sun's rays on the bottom of a pot. This cooker is almost as fast as a conventional oven because the concentrated rays of sun reach very high temperatures.

8. The container what we heat must be dark 1) Plates that form a dish: 1.1) These plates are reflective. 1.2) These plates do not absorb heat. 2) Bracket or base that holds the dish: 2.1) These bracket don’t weight too much. 2.2) These structure is so simple. 3) Focus or center of solar radiation: 3.1) This focus isn’t small and hold a lot of weight. 3.2) These focus don’t absorb heat.

9. The steps that we followed to assembly the parabolic solar cooker were: 1) We opened the packet and we read all the information 2) We ordered all the parabolic cooker parts. 3) We polished all the pieces. 4) And we began to mount all the parts.

10. 5.1) We read all the information. We used internet and a solar cooker manual.

11. We finished our search of information and we began to open the packet. and we began to open the packet.

12. We had a little incident, because Juan cut his hand. 5.2) We ordered all the parabolic cooker parts. We did a list to check if we had all the parts.

13. 5.3)We polished all the pieces.

14. To assemble the support was very difficult. 5.4)And we began to mount all the parts

15. Here the parabolic cooker was taking his final shape

16. Parabolic cooker nearly finished.

17. When we finished the cooker we organized a “picnic”. We cooked some pizzas and one burned.

18. With this work we have learnt:   The different types of solar cookers that exists and how they work.   To solve the problems that arise in the construction of a solar Cooker.   To manage a process of assembly.   The difficulty of build a mechanism like this.   How works a solar oven