Tuesday, May 26, 2015

Construction

 First, we cut off two flaps of both the big box and the small box to reduce labor in cutting more holes for the magnifying glasses.

Next, we worked on the actual oven. We took a bowl and wrapped both the inside and outside with aluminum foil. To allow light inside the oven, we poked many small holes in the covering.

Next, we painted the outside of the big box black, so it could absorb more heat and cook from the outside as well as the inside.

 This step had multiple parts. First, we filled the small box with packing peanuts. We placed the bowl in the small box and filled the rest of the small box to the brim with peanuts. Then, we filled the big box with peanuts about 2 inches. We then placed the small box in the big box and filled the rest of the way with the peanuts. This provided proper insulation for the bowl to keep it as warm as possible.

Lastly, we covered the flaps of the small and big box with aluminum foil. We then cut holes in the flaps to allow light in to the oven. We placed magnifying glasses on top of the box where the holes were. This will increase the heat drastically and heat the oven a lot faster and to a lot higher of a temperature.

Indoor Test

In order to perform at maximum potential, we performed 3 indoor tests consisting of 20 minutes each. We recorded the temperatures in 10 minute intervals.



The first test we did was our initial plan: top box to small box to covered bowl. However, we didn't get the expected temperature, so for the second test we tried opening the big box and putting the magnifying glasses on the small box. That didn't work any better, so we took the cover of the bowl off. That test did better than the first two, so we decided to scratch the cover of the bowl. The maximum temperature we reached was 28 Degrees Celsius.

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