Project 10 to the 100: Solar Oven with Lens

Solar Oven with Lens

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Science & Technology

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• 10
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• the
• 100

[meekie33]

Dont people already use this?

[kevingets1]

Some might. People in thrid world countries still cook with wood fires. These ovens can be use very efficiently in equatorial regions... where the sun is most effective. Here in Arizona we are approx 33 degrees North of the Equator... the sun here is great for solar ovens.. so any land that is between 36 degree N and 36 S of the euqator can use a solar oven very efficiently. Uses no electricity or no need to burn wood.

[thezaugg]

hate to rain on ur parade but you should look up solar panels and how they work...

[kevingets1]

Solar Panels produce electricity but not enough current to generate 300 degrees.

A solar Oven uses glass, not solar panels. The glass lets the sunlight through into the oven. Once the heat is inside the oven, the glass acts as an insulator and the heat cannot escape... so the food inside a solar oven will cook at nearly 300 degrees.

No solar panel can provide enough current to activate a filimant to 300 degrees.

Have you ever open the car door on hot day and feel the heat rush out

[kevingets1]

You'd need alot of solar panels to generate 300 degrees... plus solar panels are EXPENSIVE!!

Glass is cheap and works very well for the small space require for the oven.

Your solar panels would take up alot of space just to get enough current to make a filiment radiate at 300 degrees.

[kevingets1]

Thanks.

It probably needs a little tweeking here and there.. but I think a lens can be fabricated that is slightly curved to accept off normal light rays. In a closed car here in Arizona, the temp can easily get up to 200 degrees. With a lens that temp can be doubled.

Just a note here: When it's 85 degrees outside, the temp in a closed car can get to 120 degrees in 30 minutes.

[completeinsanity]

@catMcCool like a fresnel lens?

[catMcCool]

dont use a glass lense use a flat one

[desertblbuesman]

total energy is dependent on the glazing or reflector area measured perpendicular to the suns rays. A lens will spot that same energy to an object inside the oven but not produce more or extra energy and increase oven temp. but just focus that energy onto a smaller "target" and increase the temperature at that target point or area. The same energy is being collected.

[barkyspider]

Hey, in the summer time I could slow cook out doors, cut the grass and dinner would be ready in couple of hrs. SAVE my money for airconditioner. electric ranges use a bunck of watts. Great indea. Backyard solar cooker LOL