DIY

Solar multicooker

Solar multicooker  Solar multicooker Solar multicooker From this article, we will learn how to make a solar oven. The solar oven of the Sun Flair type is installed on the yacht of the author of the material and he constantly uses it.
He wanted to design a similar oven for home outdoor use.
The requirements for the oven are as follows:
– as cheap as possible
-use of recycled materials as much as possible
-portable and foldable
-heating no higher than 95 ° C (this is important because at this temperature [or lower] you do not need to worry about the food burning during frying or the soup boiling away. In fact, this is a slow cooker, but on solar energy.)
Master reviewed two designs (rectangular and round/oval). Each design has its advantages, but he found that the oval version warms up better, faster and more strongly.
Tools and materials: -Sun-visor for windshield of cars/trucks;
-Transparent film (similar film is used on bags for storing blankets, covers, etc .;
-Wire;
-Clips stationery; -Dishware made of aluminum; -Black spray paint;
-Scotch;
 Solar multicooker Solar multicooker  Solar multicooker Solar multicooker Step one: material selection
The Sun Flair portable solar oven he uses on the yacht is made of reflective film fixed to a soft material.
 Solar multicooker The same film is used in reflective screens to protect cars from the sun.
Solar multicooker  Solar multicooker Solar multicooker Such screens come in different sizes, but in this case the master has acquired the largest. One large reflector can be cut in half to make two ovens.
The amount of solar energy the oven generates depends on the surface area, so the larger the mirror finish, the hotter the oven will be.
The second thing you need is a transparent cover for the front of the oven. This is probably the most important component of a solar oven. The master got the film from the duvet bag. Such a bag has one side made of transparent film. Moreover, the film is quite thick and durable.
Also, this bag has a frame made of wire, and it is suitable for making a furnace frame.
The master uses stationery clamps to fasten the parts. They need 12-15 pieces.
Cooking requires utensils. In this case, the master uses aluminum cookware. The choice is due to the fact that it is easier to paint than steel (even better if it is already painted black).
 Solar multicooker Solar multicooker  Solar multicooker Step two: assembly (rectangular model)
As mentioned earlier, the master made two ovens – oval and rectangular. In this step, we consider the manufacture of a rectangular oven.
First, the master made a drawing based on the dimensions of the sunscreen.
Solar slow cooker  Solar multicooker Solar multicooker Made a template and cut out the material.
 Solar multicooker Solar multicooker  Solar multicooker Solar multicooker  Solar multicooker I bent the wire frame and assembled the oven. The edges can be sewn or secured with tape.
Solar multicooker  Solar multicooker Solar multicooker  Solar multicooker PDF file with drawing is attached.
Rectangular Solar oven dwg.pdf Step three: oval model
The oval model is built on the same principle.
 Solar slow cooker  Solar multicooker Solar multicooker  Solar multicooker Solar multicooker  Solar multicooker Solar multicooker A file with a drawing is attached. < br> Oval Solar oven dwg.pdfStep four: cookware and cooking
As already mentioned, the master uses aluminum cookware for cooking. For better heating, it should be painted black.
The dishes must be thoroughly washed and wiped with a steel wool (outside). Then wash again with good degreasing soap. Allow it to dry completely, then apply 2 or 3 even coats of black enamel spray paint to the outside surface. If the paint requires a primer, use it first. do not paint the inside.
Solar multicooker Solar multicooker  Solar multicooker In order for the dishes to heat up as quickly as possible, place them on a small piece of wood in the center of the oven. Thus, sunlight falls on it from all directions, and it is in focus.
Then the master conducted testing. The photo shows how the temperature rises (the thermometer is installed instead of the lid handle).
Solar multicooker Solar multicooker  Solar multicooker He placed the oven on a work table and set it at a slight upward angle (since the sun was quite high in the sky) and pointed it at about 10 degrees along the path of the sun. It was about 12:30. Every hour he went out and checked the temperature.
At 2 pm, he put the ingredients for the sauce into the saucepan. It took 3 hours to prepare the dish and at 17:00 the sauce was ready. At 5:00 pm the temperature in the pan was 185 ° F (85 ° C).
Solar multicooker

Source:

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