Designing a solar oven by angel.g

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DESIGNING A SOLAR OVEN By Angel Gallegos Monday, May 20, 13

Transcript of Designing a solar oven by angel.g

Page 1: Designing a solar oven by angel.g

DESIGNING A SOLAR OVEN

By Angel Gallegos

Monday, May 20, 13

Page 2: Designing a solar oven by angel.g

Imagine for design #1

• Idea 1

• Our materials are white foam flat.

• We need 3 units of white foam flat.

• The advantages of this idea is that when we put it on the sides we could cover the holes that the box has except the box where the terminator goes so we can trap heat.

• The disadvantages of this idea is we could get a higher impact score.

Monday, May 20, 13

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Imagine for design #2

• Idea 2

• Our materials are felt flat and foam flat

• We need 2 units for felt flat and 1 unit for foam flat

• The advantages are the felt would hold more heat.

• The disadvantages would be that the felt might not get that much heat and get a higher impact score.

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Plan for design #1

Top view

Brown= foam

The white foam is cutTo make them fit some

Holes the solar ovenMay have

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Page 5: Designing a solar oven by angel.g

Plan for design #1

• Side view

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Materials Unit We will use the materials by

Foam

Felt

1 unit Flat

2 unit Flat

Plan for design #1

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Page 7: Designing a solar oven by angel.g

Design 1 ReduceNatural

or processd

Reuse RecycleTotal points

Foam 2 units Processd No Yes 5

Felt 1 units Processed No No 4

Impact score for deign #1

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Time Temperature

0 min

5 min

10 min

15 min

20 min

25 min c

25° c

32.6° c

36.3° c

38.1° c

39.9° c

40.2° c

Solar oven testing

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Page 9: Designing a solar oven by angel.g

Solar oven n the shade

Time Tempeture

1 min

2 min

3 min

4 min

5 min

6 min

39.9 ° c

39.3 ° c

38.1 ° c

37.3 ° c

36.2 ° c

35.1 ° c

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Create for design #1

• Our heat score is our solar oven maximum temperature subtracted from the oven control: 40-55=-15

• Our time score is the number of minutes it took to cool down which was 6 minutes.

• Our total impact score was 9 points.

• Our total score for the solar oven was -18.

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Improve for design #1

• The total score for our first solar system oven was 18

• The parts of our solar oven that worked well was the aluminum foil because the aluminum reflected the heat to the box.

• The part of the solar oven that did not work was the foam because we thought the foam would hold the heat but the foam did not hold heat.

• We are going to try to improve our heat and impact score

• We are going to improve impact and heat by using items that are recycled and we could use items that observes heat.

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Plan for design #2

Top view

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PLAN FOR DESIGN #2

• Side view

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Materials UnitsHow will you use

the material.

Black foam

Aluminum

Felt

1 Flat

1 Flat

1 Flat

Plan for design #2

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Design #2 Reduce

Natural or

processed Reuse Reycle

Total points

Black foam

Aluminum

Felt

1 unit Processed No No 4

1 unit Processed No No 4

1 unit Processed No No 4

Impact score for design #2

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Time Tempeture

0 min

5 min

10 min

15 min

20 min

25 min

30 min

24.4° c

46.2° c

43.9° c

37.8° c

40.9° c

42.7° c

37.6° c

Solar oven testing in the sun

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Page 17: Designing a solar oven by angel.g

Temperature Time

29.7° c 1 min

29.2° c 2 min

28.2° c 3 min

27.9° c 4 min

27.7° c 5 min

27.1° c 6 min

26.0° c 7 min

25.3° c 8 min

25.4° c 9 min

25.4° c 10 min

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Design #2 create

• Our heat score is our solar oven maximum temperature subtracted from the control oven: 44-53=-9

• Our time score is the number of minutes it took to cool which was 2 minutes.

• Our impact score is 22 points.

• Our new total score for the solar oven is -19.

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Page 19: Designing a solar oven by angel.g

Reflection • Our improved design did not work well because in our first score we got

-18 and in our second score we got -19 and we thought our new materials would make a better insulator than our other materials.

• The materials we changed where white foam to black foam and we added aluminum.

• Our materials worked poorly because when we put our aluminum we put it on each of the sides, and we just spread out the black foam all around the side of the felt and with the felt we just put all around the floor of the box. So I think that when it spread out the black foam did not get much sunlight because when we spread it out around the felt not much sun light could get to the black foam.

• If could improve again we would shred our materials, because when we put materials in the cooler shred was a better insulator. We would also place our aluminum where the light reflects to hold more heat in the black foam. We would also put our black foam where it would get more sunlight.

Monday, May 20, 13