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Designing a solar oven
By: Brooke Butler
Monday, May 20, 13
Imagine for design #1
Idea #1
Our material are felt flat and shredded cloth
We need 2 units of felt and 1 unit of cloth
An advantage would be that we would get a good
insulation with the felt
A disadvantage is getting a high score on environment
impact
Monday, May 20, 13
Imagining for designing #2
Idea #2
Are materials are shredded foam on bottom and flat felt on
sides
We need 1 unit if foam and 2 units of felt
An advantage of ore idea is that we will have better insulation
then we had in the 1st idea
A disadvantage is that foam has a high amount of
environmental impact
Monday, May 20, 13
Plan for design #1
Top view
Monday, May 20, 13
Plan for design #1
Side view
Monday, May 20, 13
Plan design #1
Material Units
How will you use
it?
Felt 2 units Keep it flat
Cloth 1 unit Shredded
Monday, May 20, 13
Impact score for design #1
Design
#1
Reduce
Natural
or
processed
Reuse Recycle Total
Felt
4 points
(2 units)
Processed
(+1 point)
No
(+1 point)
No
(+1 point)
7 points
Cloth
1 point
(1 unit)
Processed
(+1 point)
Yes
(-1 point)
No
(+1 point)
2 points
T O T A L 9 points
Monday, May 20, 13
Solar oven testing in sun
Time Temperature
O 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
Solar oven in the shade
Time Temperature
I minute 47.3°c
2 minutes 42.4°c
3 minutes 37.7°c
4 minutes 35.6°c
5 minutes 34.1°c
6 minutes 31.9°c
Monday, May 20, 13
Create for design #1
Our heat score for are solar oven maximum
temperature subtracted from the control oven:
56°c - 55°c = 1
Our time score is the number of minutes it took to cool
down which was 4 minutes
Our total impact score was 9 points
Are total score for are solar oven was -4
Monday, May 20, 13
Improve for #1
The total score for our first solar oven was -4 points
The part of our solar oven that worked well was, our time score. our
time score worked the best because it took a longer time to cool
down
The part of our solar oven that did not work well was ,installation.
We did not have installation that work because it was not thick
We are going to try to improve our heat score
We will improve our heat score by putting thicker installation
because it was not thick
Monday, May 20, 13
Plan for design #2
Top view
Monday, May 20, 13
Plan for design #2
Side view
Monday, May 20, 13
Plan design #2
Materials Units
How will we use
it?
Felt 1 Cut in half
Foam 2 Shred
Monday, May 20, 13
Impact score #2
Design
#2
Reduce
Natural
or
processe
d
Reuse Recycle Total
Felt
1 point
(1 unit)
Processed
(+1 point)
No
(+1 point)
Yes
(-1 point)
4 points
Foam
4 points
(2 units)
Processed
(+1 point)
No
(+1 point)
No
(+1 point)
5 points
T O T A L 9 points
Monday, May 20, 13
Solar oven testing in the sun
Time Temperature
0 minutes 16° c
5 minutes 27.6°c
10 minutes 30.3°c
15 minutes 32°c
20 minutes 33.2°c
25 minutes 34.2°c
30 minutes 35.1°c
Monday, May 20, 13
Solar oven testing in shade
Time Temperature
1 minutes 27.4°c
2 minutes 23.7°c
3 minutes 21.1°c
4 minutes 19.8°c
5 minutes 18.9°c
6 minutes 18.2°c
7 minutes 17.8°c
8 minutes 17.5°c
9 minutes 17.4°c
10 minutes 17.1°c
Monday, May 20, 13
Create for design #2
Our heat score is our solar oven maximum tempter
subtracted from the control oven : 35-41= -6
Our time score is the number of minutes it took to cool
down which was 3 minutes
Our total score impact was 9 points
Our new total score for the solar oven is -12
Monday, May 20, 13
Reflection
Our improved design did not work because we had
poor insulation and we had a poor time score. The felt
did not keep the heat trapped in the box because our
temperature decreased.
If we could improve again, we would use 2 units of
foam for the sides and, 1 unit of cloth for the bottom.
We would use this because they are both good
insulators and they are not the worst for the
environment.
Monday, May 20, 13

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Brooke b

  • 1. Designing a solar oven By: Brooke Butler Monday, May 20, 13
  • 2. Imagine for design #1 Idea #1 Our material are felt flat and shredded cloth We need 2 units of felt and 1 unit of cloth An advantage would be that we would get a good insulation with the felt A disadvantage is getting a high score on environment impact Monday, May 20, 13
  • 3. Imagining for designing #2 Idea #2 Are materials are shredded foam on bottom and flat felt on sides We need 1 unit if foam and 2 units of felt An advantage of ore idea is that we will have better insulation then we had in the 1st idea A disadvantage is that foam has a high amount of environmental impact Monday, May 20, 13
  • 4. Plan for design #1 Top view Monday, May 20, 13
  • 5. Plan for design #1 Side view Monday, May 20, 13
  • 6. Plan design #1 Material Units How will you use it? Felt 2 units Keep it flat Cloth 1 unit Shredded Monday, May 20, 13
  • 7. Impact score for design #1 Design #1 Reduce Natural or processed Reuse Recycle Total Felt 4 points (2 units) Processed (+1 point) No (+1 point) No (+1 point) 7 points Cloth 1 point (1 unit) Processed (+1 point) Yes (-1 point) No (+1 point) 2 points T O T A L 9 points Monday, May 20, 13
  • 8. Solar oven testing in sun Time Temperature O 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
  • 9. Solar oven in the shade Time Temperature I minute 47.3°c 2 minutes 42.4°c 3 minutes 37.7°c 4 minutes 35.6°c 5 minutes 34.1°c 6 minutes 31.9°c Monday, May 20, 13
  • 10. Create for design #1 Our heat score for are solar oven maximum temperature subtracted from the control oven: 56°c - 55°c = 1 Our time score is the number of minutes it took to cool down which was 4 minutes Our total impact score was 9 points Are total score for are solar oven was -4 Monday, May 20, 13
  • 11. Improve for #1 The total score for our first solar oven was -4 points The part of our solar oven that worked well was, our time score. our time score worked the best because it took a longer time to cool down The part of our solar oven that did not work well was ,installation. We did not have installation that work because it was not thick We are going to try to improve our heat score We will improve our heat score by putting thicker installation because it was not thick Monday, May 20, 13
  • 12. Plan for design #2 Top view Monday, May 20, 13
  • 13. Plan for design #2 Side view Monday, May 20, 13
  • 14. Plan design #2 Materials Units How will we use it? Felt 1 Cut in half Foam 2 Shred Monday, May 20, 13
  • 15. Impact score #2 Design #2 Reduce Natural or processe d Reuse Recycle Total Felt 1 point (1 unit) Processed (+1 point) No (+1 point) Yes (-1 point) 4 points Foam 4 points (2 units) Processed (+1 point) No (+1 point) No (+1 point) 5 points T O T A L 9 points Monday, May 20, 13
  • 16. Solar oven testing in the sun Time Temperature 0 minutes 16° c 5 minutes 27.6°c 10 minutes 30.3°c 15 minutes 32°c 20 minutes 33.2°c 25 minutes 34.2°c 30 minutes 35.1°c Monday, May 20, 13
  • 17. Solar oven testing in shade Time Temperature 1 minutes 27.4°c 2 minutes 23.7°c 3 minutes 21.1°c 4 minutes 19.8°c 5 minutes 18.9°c 6 minutes 18.2°c 7 minutes 17.8°c 8 minutes 17.5°c 9 minutes 17.4°c 10 minutes 17.1°c Monday, May 20, 13
  • 18. Create for design #2 Our heat score is our solar oven maximum tempter subtracted from the control oven : 35-41= -6 Our time score is the number of minutes it took to cool down which was 3 minutes Our total score impact was 9 points Our new total score for the solar oven is -12 Monday, May 20, 13
  • 19. Reflection Our improved design did not work because we had poor insulation and we had a poor time score. The felt did not keep the heat trapped in the box because our temperature decreased. If we could improve again, we would use 2 units of foam for the sides and, 1 unit of cloth for the bottom. We would use this because they are both good insulators and they are not the worst for the environment. Monday, May 20, 13