DEIGNING A SOLAR OVENBY MASON WOLFGRAMM

Monday, May 20, 13

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

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

Plan for design # 1

• Top view

Monday, May 20, 13

Plan 4 design #1

• Side view

Monday, May 20, 13

Materials UnitsWe will use the

materials by

Foam

Felt

1 unit Flat

2 unit Flat

Monday, May 20, 13

Design1 ReduceNormal

or processed

Reuse RecycleTotal points

Foam 2 units Processed No Yes 5

Felt 1 units Processed No No 4

Testing the solar

Total points 9

Monday, May 20, 13

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

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

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

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

Plan for design # 2

• Top view

Monday, May 20, 13

Plan for design # 2

• Side view

Monday, May 20, 13

Material Units Using

Black foam

Green felt

Aluminum

2 Fold

3 Fold

1 Fold

Monday, May 20, 13

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

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

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

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