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Designing a solar ovenBy: Paula ValenciaMonday, May 20, 13
Imagine for design #1Idea #1Our materials are shredded foam on the bottom, shreddedfelt on two sides, shredded cotton on t...
Imagine for design #1Idea#2Our materials are shredded cloth on two sides, shredded felt onthe bottom, and shredded white f...
Plan for design #1Top viewMonday, May 20, 13
Plan for design #1Side viewMonday, May 20, 13
Plan for design #1Materials UnitsWe will use thematerial byShredded cloth One unitPutting it on two ofthe sides of the box...
Impact score for design #1Design #1 ReduceNatural orprocessedReuse RecycleShreddedclothShreddedfeltShreddedwhitefoam1 unit...
Solar oven testing in thesunTime Temperature0 minutes 25° C5 minutes 38.9°C10 minutes 47.7°C15 minutes 50°C20 minutes 54.3...
Solar oven in the shadeTime Temperature1 minute 63.8°C2 minutes 50° C3 minutes 40.5°C4 minutes 33.6°C5 minutes 31.4°CMonda...
Create for design #1Our heat score is our solar oven maximumtemperature subtracted from the control oven:66°C–55°C = 11°C....
Improve for design #1The total score for our first solar oven was 7 points.The parts of our solar oven design that worked ...
Plan for design #2Top viewMonday, May 20, 13
Plan for design #2Side viewMonday, May 20, 13
Plan for design #2Material UnitsHow will you use thematerial?ClothNewspaperCotton1 unit = 1 sheet Shredded1 units = 1 shee...
Impact score for design #2Design #2 ReduceNatural orprocessedReuse RecycleTotalpointsClothNewspaperCottonballs1 unit Proce...
Solar oven testing in thesunTime Temperature0 minutes 16°C5 minutes 37.4°C10 minutes 40°C15 minutes 42°C20 minutes 40.8°C2...
Solar oven testing in shadeTime Temperature1 minutes 33°C2 minutes 27.9°C3 minutes 23.9°C4 minutes 21.6°C5 minutes 20.1°C6...
Create for design #2Our heat score is our solar oven maximumtemperature subtracted from the control oven:45°C - 41°C = 4°C...
ReflectionOur improved design did not work well because our scorewas low and we do not want a low score. The materials wec...
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Paula

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Transcript of "Paula"

  1. 1. Designing a solar ovenBy: Paula ValenciaMonday, May 20, 13
  2. 2. Imagine for design #1Idea #1Our materials are shredded foam on the bottom, shreddedfelt on two sides, shredded cotton on the other two sides.We need one unit from every material.The advantage of this idea is that most of our materials arevery good insulators, and they have little impact, thereforegiving us a low environmental impact score.The disadvantage of this idea is that our foam has a bigenvironmental impact, giving us a high impact score.Monday, May 20, 13
  3. 3. Imagine for design #1Idea#2Our materials are shredded cloth on two sides, shredded felt onthe bottom, and shredded white foam on the other two sides.We need one unit from each of the material.The advantage of this idea is that these materials are goodinsulators and they have little environmental impactThe disadvantage of this idea is that we would have preferred tohave three different materials than these but the ones that wewanted had too much environmental impact so we chose theseinstead.Monday, May 20, 13
  4. 4. Plan for design #1Top viewMonday, May 20, 13
  5. 5. Plan for design #1Side viewMonday, May 20, 13
  6. 6. Plan for design #1Materials UnitsWe will use thematerial byShredded cloth One unitPutting it on two ofthe sides of the box.Shredded felt One unitWe will put the felton the bottom.Shredded whitefoamOne unitOn the other twosides of the box.Monday, May 20, 13
  7. 7. Impact score for design #1Design #1 ReduceNatural orprocessedReuse RecycleShreddedclothShreddedfeltShreddedwhitefoam1 unit Processed Yes No1 unit Processed No No1 unit Processed No YesTotalpoints2 points4 points2 pointsTotal impact score 8 pointsMonday, May 20, 13
  8. 8. Solar oven testing in thesunTime Temperature0 minutes 25° C5 minutes 38.9°C10 minutes 47.7°C15 minutes 50°C20 minutes 54.3°C25 minutes 65.5°CMonday, May 20, 13
  9. 9. Solar oven in the shadeTime Temperature1 minute 63.8°C2 minutes 50° C3 minutes 40.5°C4 minutes 33.6°C5 minutes 31.4°CMonday, May 20, 13
  10. 10. Create for design #1Our heat score is our solar oven maximumtemperature subtracted from the control oven:66°C–55°C = 11°C.Our time score is the number of minutes it tookto cool down which was 4 minutes.Our total impact score was 8 points.Our total score for the solar oven is 7 points.Monday, May 20, 13
  11. 11. Improve for design #1The total score for our first solar oven was 7 points.The parts of our solar oven design that worked well wereour insulators because they trapped in the heat very well.The parts of our solar oven that did not work well was theplastic covering because it would always fall off the hole.We are going to try to improve our heat and impact score.We will improve our heat and impact score by usingdifferent insulators that dont have a lot of impact. Canalso use darker materials because they trap in heat better.Monday, May 20, 13
  12. 12. Plan for design #2Top viewMonday, May 20, 13
  13. 13. Plan for design #2Side viewMonday, May 20, 13
  14. 14. Plan for design #2Material UnitsHow will you use thematerial?ClothNewspaperCotton1 unit = 1 sheet Shredded1 units = 1 sheets Crumpled1 unit = 1 scoop Pull/ shredMonday, May 20, 13
  15. 15. Impact score for design #2Design #2 ReduceNatural orprocessedReuse RecycleTotalpointsClothNewspaperCottonballs1 unit Processed Yes No 2 points1 unit Processed Yes Yes 0 points1 unit Processed No No 4 pointsTotal impact score 6 pointsTotal impact score 6 pointsTotal impact score 6 pointsTotal impact score 6 pointsTotal impact score 6 pointsMonday, May 20, 13
  16. 16. Solar oven testing in thesunTime Temperature0 minutes 16°C5 minutes 37.4°C10 minutes 40°C15 minutes 42°C20 minutes 40.8°C25 minutes 44.5°CMonday, May 20, 13
  17. 17. Solar oven testing in shadeTime Temperature1 minutes 33°C2 minutes 27.9°C3 minutes 23.9°C4 minutes 21.6°C5 minutes 20.1°C6 minutes 19°C7 minutes 18.3°C8 minutes 17.6°C9 minutes 17.1°C10 minutes 16.9°CMonday, May 20, 13
  18. 18. Create for design #2Our heat score is our solar oven maximumtemperature subtracted from the control oven:45°C - 41°C = 4°C.Our time score is the number of minutes it tookto cool down which was 4 minutes.Our total impact score was 6.Our new total score for the solar oven is 2 points.Monday, May 20, 13
  19. 19. ReflectionOur improved design did not work well because our scorewas low and we do not want a low score. The materials wechanged were using newspaper and cotton instead of feltand foam as insulators. We changed our insulators hopingto get a lower impact score on the environment. Thematerials were poor insulators because in our first designour solar oven temperature went up in the 60s but in oursecond design the temperature only went up to the 40s.If we could improve again we would find even betterinsulators than the ones on the first design because then wemight go up above the 60s and we would get a higher totalscore.Monday, May 20, 13
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