Designing a solar oven By:Axlit Rico

Monday, May 20, 13

Imagine for design #1

Idea #1

Are materials flat felt on the side. 2 units

White shredded on the bottom. 1 unit

Monday, May 20, 13

Imagine design #1

Idea number #2

shredded foam on the bottom. 1 unit

Flat felt on the side. 2 units

Monday, May 20, 13

Top view Plan for design

Monday, May 20, 13

Side view plan for design #1

Monday, May 20, 13

Plan design #1

Materials How many unit will you need?

How will you use the

material?

Felt 2 units Keep it flat

Cloth 1 unit Shredded

Monday, May 20, 13

Impact score for design #1

Material 1

Felt 2

Of units 1

Points 1 Prosses No +1 Yes-1 5

Material 2

Units 2 foam

1 point Process Yes -1 No +1 4

Reduce

Is it natural

or prosses?

Has the material

been reuse?

Recycle Points 9

Monday, May 20, 13

1 Solar oven testing0 minutes 25°c

5 minutes 53.8°c

10 minutes 54.2 °c

15 minutes 54.3°c

20 minutes 55.6°c

25 minutes 55.1°c

Monday, May 20, 13

2 Solar oven testing1 47.3°c

2 42.4°c

3 37.7°c

4 35.6°c

5 34.1°c

6 31.9°c

Monday, May 20, 13

Designing a solar oven improve!

What part of your solar oven worked well?

Our time score worked the best because it took a long time to cool down.

What part of your solar oven did not work well?

We did not have insulators that worked well.

And it was heat score.

Our total score on design #1 is -4

Monday, May 20, 13

What can we change our design? #1

Monday, May 20, 13

Designing a solar oven #2

Our materials is felt units is 1 how are we going to use it is to cut it in half.

Foam units is 2 and how are we going to use it is to shred.

Monday, May 20, 13

Design a solar oven plan top view

Monday, May 20, 13

Side view

Monday, May 20, 13

Solar oven design processCreate!

Criteria Observation Score

Heat score 35-41=6 6

Time scoreTimes score

3minutes3

Total impact score

Record your total impact score 4-9

9

Total score 6+3-9= Total score 12

Monday, May 20, 13

Solar oven testing in sun 0minutes 16°c

5minutes 27.6°c

10minutes 30.3°c

15minutes 32.0°c

20minutes 33.2°c

25minutes 34.2°c

30minutes 35.1°c

Monday, May 20, 13

Solar oven in shade1 27.4°c

2 23.7°c

3 21.1°c

4 19.8°c

5 18.9°c

6 18.2°c

7 17.8°c

8 17.5°c

9 17.4°c

10 17.1°c

Monday, May 20, 13

Create for design #2

Our heat score is our solar oven maximum temperature subtracted from the control oven: 35-41=6

Our time score is the number of minutes.It took to cool down witch was 3 minutes.

Our total impact score was 9 Points.

Our new total score for the solar oven is 12.

Monday, May 20, 13

Reflection

Our improved design did not work well because design 1 the total score was -4 and design 2 was -12. The materials we changed were felt to fabric on the side of the box and shredded cloth to shredded foam.The materials were good choice but it was not used correctly. We should have kept the felt because it is a good insulator and helped our temperature increase.

If we could improve again we would make it much better and see the total score and have some materials that are good insulators that well help much the solar oven.

Monday, May 20, 13