Solar oven by. michael kramer

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Designing a Solar oven By. Michael Kramer Monday, May 20, 13

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Transcript of Solar oven by. michael kramer

Page 1: Solar oven by. michael kramer

Designing a Solar oven

By. Michael Kramer

Monday, May 20, 13

Page 2: Solar oven by. michael kramer

Imagine for design #1

Idea #1 to put the white foam on the sides of the cloth and put the dark blue cloth on the bottom of the box.

Our materials are dark blue cloth and white foam.

We need 1 unit for the dark cloth and 2 units for the white foam

The advantage of this idea is are that dark cloth can be reused and foam can be recycled, also that both of the materials are good insulators.

The disadvantages of this idea is that the foam takes longer to break down than cloth.

Monday, May 20, 13

Page 3: Solar oven by. michael kramer

Imagine for idea #2

Idea #2 were going to put the foam on the bottom and the light cloth on the sides.

Our materials are white foam and light cloth.

We need 1 unit for the foam and 2 units for the light cloth.

The advantages for this idea is they both are recyclable and reusable.

The disadvantages for this idea is we can only use two materials.

Monday, May 20, 13

Page 4: Solar oven by. michael kramer

Plan for design #1(Top view)

Monday, May 20, 13

Page 5: Solar oven by. michael kramer

Plan for design #1(Side view)

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Plan for design #1

Materials UnitsWe will use the material

White foam 2Put it on the sides of the

box

Dark cloth 1Put it on the bottom of the box

Monday, May 20, 13

Page 7: Solar oven by. michael kramer

Impact score for design #1

Design #1

ReduceNatural

or processed

ReuseRecycl

eTotalPoints

Foam4

unitsProcesse

d No Yes 2 pts.

Dark cloth

1 units

Processed Yes No 5 pts.

Our total impact score is 7 points.

Monday, May 20, 13

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Solar oven testing in the sun

Time Temperature

0 min. 25°c

5 min. 48.7°c

10 min. 50.4°c

15 min. 55.5°c

20 min. 59.4°c

25 min. 58.8°c

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Solar oven testing in the shade

Time (minutes) Solar oven temp.

1 min. 41.7°c

2 min. 36°c

3 min. 34.2°c

4 min. 32°c

5 min. 30.5°

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Page 10: Solar oven by. michael kramer

Create for design #1

Our heat score is the difference from our solar ovens maximum temperature from the control oven 58-55=3

Our time score number is the number of minutes it took to cool down which was 3 minutes.

Our total impact score was 7 points

Our total score for the solar oven is -1

Monday, May 20, 13

Page 11: Solar oven by. michael kramer

Improve for design #1

The total score for our first solar oven was -1 points. worked well was the foam because it was trapping most of the heat.

The parts of our solar oven design that did not work well was the cloth because it was loose in the box.

We are going to try to improve our heat score

We will improve our heat score by rearranging the materials in the box.

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Page 12: Solar oven by. michael kramer

Plan for design #2(Top View)

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Page 13: Solar oven by. michael kramer

Plan for design #2(Side View)

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Page 14: Solar oven by. michael kramer

Plan for design #2

Materials Units How will you use the material

Foam 2 Put it on the sides and bottom

Cloth 1Put it on the bottom

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Page 15: Solar oven by. michael kramer

Impact score for design #2

Design #2

Reduce Natural or processed Reuse

Recycle Total points

Foam 4 pts. Processed No Yes 5

LightCloth

1 pts. Processed Yes No 2

The total impact score is 7 pointsMonday, May 20, 13

Page 16: Solar oven by. michael kramer

Solar oven testing in sun

Time Temperature

0 min 24.4°c

5 min 48.5°c

10 min 38°c

15 min 43.2°c

20 min 44.1°c

25 min 44.1°c

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Page 17: Solar oven by. michael kramer

Solar oven testing in the shade Time Temperature 1 min 33.1°c2 min 29°c3 min 26.7°c4 min 26.6°c5 min 26.2°c6 min 25.8°c7 min 25°c8 min 24.7c9 min 24.7°c10 min 24.8°c

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Page 18: Solar oven by. michael kramer

Create for design #2

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 down which was 2 minutes.

Our total impact score was 7 points

Our new total score for the solar oven is -14

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Page 19: Solar oven by. michael kramer

ReflectionOur improved design did not work well because the materials we used weren't good insulators. The materials we changed was the dark cloth to light cloth. The new material was a poor insulator. The light cloth is a lighter color so it reflects light and darker things absorb light.

If we could improve again, we would move around the materials in a way where the heat would be trapped in the oven.

Monday, May 20, 13