2. Imagine for Design # 1
Idea #1
•Our materials are white foam flat.
• We need 3 units for white foam flat.
•The disadvantage of this idea is we can get a higher impact score.
•The advantages of using this idea are that when we put it on the sides we could cover the holes
of the box except one hole where the thermometer goes.
Monday, May 20, 13
3. Idea #2
Our materials foam, and flat felt.
We need 2 for felt 1 for foam.
The advantage of the felt would be the felt could hold more heat.
The disadvantage is that the felt would get a higher impact score.
Monday, May 20, 13
8. Time Temperature
0 min
5 min
10 min
15 min
20 min
25 min
30 min
25°c
32.6°c
36.3
38.1°c
39.9°c
40.2°c
Monday, May 20, 13
9. Time Temperature
1 min
2 min
3 min
4 min
5 min
6 min
39.9°c
39.3
38.1°c
37.3°c
36.2
35.1°c
Monday, May 20, 13
10. Creating for design # 1
• Our heat source is our solar oven we subtract the temp of
your maximum temp
• Our time score is the number of minutes it took to cool
down which took 6 min.
• Our total impact score is 9.
• Our total score for the solar oven is -18.
Monday, May 20, 13
11. Improve for design # 1
• The total sore for the our first solar oven was - 18 points.
• The parts of our solar oven design that worked the most
was aluminum foil, because the light reflects of the foil
and cooks the food.
• We are trying to improve our -18 score.
Monday, May 20, 13
15. 2 Reduce
Natural or
Processed Reuse Recycle Points
Felt
Aluminum
Black
foam
1 unit Processed No No 4
1 unit Processed No No 4
1 unit Processed No No 4
12
points
Monday, May 20, 13
16. Data Chart
0 min 24.4°c 1 min 29.7°c
5 min 46.2°c 2 min 29.2°c
10 min 43.9°c 3 min 28.2°c
15 min 37.8°c 4 min 27.°c
20 min 40.9°c 5min 27.7°c
25 min 42.7°c 6 min 27.1°c
30 min 37.6°c 7 min 26.0°c
8 min 25.3°c
9 min 25.4°c
10 min 25.4°c
Monday, May 20, 13
17. Create for design # 2
• Our heat score is our solar oven maximum temperature
subtracted from the control oven 37.6°c - 24.4°c = 13.2°c
• Our time score is the number of minutes it took to cool
down which was -9
• Our new total score for the solar ovens is -19
Monday, May 20, 13
18. Reflection
• Our improved design did not work because our score was
horrible because we had a low heat score and a high
impact score.
• We changed white foam to black, and then we added
aluminum. These were poor insulators because aluminum
was a reflector and conducts heat so it did not trap the
heat.
• If we could improve we would take off the foil and add
shredded foam because it takes up more room to absorb
the heat.
Monday, May 20, 13
