Hypothesis: The smaller box surrounding the solar bowl and the foam insulation will keep the oven from burning down.
Control: Cardboard in regular sunlight
Independent Variable: The amount of insulation placed around the cardboard
Dependent Variable: The flammability of the oven
Insulation is the key to keeping this design fire-proof, and we need the best insulator. After doing some research, we came to the conclusion that foam is the best insulator, and here is a video showing just how durable foam is.
http://www.youtube.com/watch?v=kcY0Bnh_wCM
This foam has also passed many flammability tests, further showing that we should use foam to keep the solar oven both insulated and fireproof.¹ The foam we are using is in the form of packing peanuts.
"Spray Foam Passes the Test for Flammability for the Second Time." Spray Foam. Web. 12 May 2015. <http://www.sprayfoam.com/newsarchives/archivedetails.cfm?id=838>.
List of Materials:
-Two boxes, one 20x20 and one 12x12
-1 industrail-sized pack of packing peanuts
-2 magnifying glasses
-1 thermometer
-1 big box of aluminum foil
-1 big bowl
-Black Spraypaint
This is a top view of our design from the outside. We would paint the whole box black to absorb more heat. Two of the four holes are for magnifying glasses. One of the other holes is for heat ventilation (this hole will be much smaller) and the other one is for a thermometer. The thermometer hole is just big enough to fit the thermometer in it.
This is the top view of the inside of our design. We would have a smaller box inside the large box. In the smaller box we would paint it black as well and put a bowl covered in tin foil in the middle. Around the smaller box we would put foam insulation to keep the box hot. On the flaps of the big box we would put tin foil on them so when the sunlight comes in it will reflect off the tin foil in the bowl to the flaps and back again.
This design will work because not only is the heat closed off, but it will not escape because of the insulation. We will reflect light back and forth and back again to make sure the design is as efficient as it can be. Since we don't have a lot of holes for light, we have to make the design very reflective on the inside to make the most of what we have. The heat of the light will also be magnified by the magnifying glasses. We will have highly concentrated light reflecting back and forth, which turns out to be a highly powerful and efficient design.
Insulation is the key to keeping this design fire-proof, and we need the best insulator. After doing some research, we came to the conclusion that foam is the best insulator, and here is a video showing just how durable foam is.
http://www.youtube.com/watch?v=kcY0Bnh_wCM
This foam has also passed many flammability tests, further showing that we should use foam to keep the solar oven both insulated and fireproof.¹ The foam we are using is in the form of packing peanuts.
"Spray Foam Passes the Test for Flammability for the Second Time." Spray Foam. Web. 12 May 2015. <http://www.sprayfoam.com/newsarchives/archivedetails.cfm?id=838>.
List of Materials:
-Two boxes, one 20x20 and one 12x12
-1 industrail-sized pack of packing peanuts
-2 magnifying glasses
-1 thermometer
-1 big box of aluminum foil
-1 big bowl
-Black Spraypaint
This is a top view of our design from the outside. We would paint the whole box black to absorb more heat. Two of the four holes are for magnifying glasses. One of the other holes is for heat ventilation (this hole will be much smaller) and the other one is for a thermometer. The thermometer hole is just big enough to fit the thermometer in it.
This is the top view of the inside of our design. We would have a smaller box inside the large box. In the smaller box we would paint it black as well and put a bowl covered in tin foil in the middle. Around the smaller box we would put foam insulation to keep the box hot. On the flaps of the big box we would put tin foil on them so when the sunlight comes in it will reflect off the tin foil in the bowl to the flaps and back again.
This design will work because not only is the heat closed off, but it will not escape because of the insulation. We will reflect light back and forth and back again to make sure the design is as efficient as it can be. Since we don't have a lot of holes for light, we have to make the design very reflective on the inside to make the most of what we have. The heat of the light will also be magnified by the magnifying glasses. We will have highly concentrated light reflecting back and forth, which turns out to be a highly powerful and efficient design.
No comments:
Post a Comment