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Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
Hayden
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Hayden

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  1. Designing a Solar OvenBy:Hayden+Monday, May 20, 13
  2. Imagine for Design #1• Idea #1• Our materials are dark cloth to absorb heat and Cotton ballsit insulate the heat• We need 1 unit of dark cloth=1sheet and 2 units of cottonballs=2cups• The advantage of this idea is that dark cloth would b good toabsorb the heat and make the box.• The disadvantage of the materials is that we might not haveenough Cotten balls for the experimentMonday, May 20, 13
  3. Imagine for design #2• Idea #2• Our materials are white colored cloth and the green coloredfoam• We need 1 unit of white colored cloth= 1sheet and 2units ofgreen colored cloth=2sheets• The advantage of this idea is that the white colored cloth willinsulate the heat and the green foam is a little dark so it willabsorb the heat• The disadvantage is they the white colored cloth may notinsulate the heat as much as we wantMonday, May 20, 13
  4. Plan for design #1• Top viewMonday, May 20, 13
  5. Plan for design #1• Side viewMonday, May 20, 13
  6. Plan for design #1Materials UnitsWe will use thematerialCotton balls 2 unitsTape them andsmash them tohave morespace to coverBlack cloth 1 unitPlace onbottom and toabsorb heatMonday, May 20, 13
  7. Impact score for design #1Design#1ReduceNatural orprocessed Reuse RecycleTotalPointsCottonballsBlackcloth3 units Processed No No 7 points1 unit Processed Yes No 2 pointsOur total impact score is 9 pointsMonday, May 20, 13
  8. Solar oven testing in the sunTime Tempeture0 minutes 25°C5 minutes 52.4°C10 minutes 52°C15 minutes 54°C20 minutes 55.7°C25 minutes 54.6°CMonday, May 20, 13
  9. Solar oven testing in theshadeTime Tempeture1 minutes 47.7°C2 minutes 41.9°C3 minutes 36.7°C4 minutes 34.8°C5minutes 32.7°C6 minutes 31°CMonday, May 20, 13
  10. Create for deign #1• Our heat score is our solar oven maximumtemperature subtracted from the control oven56°C-55=1• Our time score is the number of minutes it tookto cool down which was 4 minutes• Our total impact score was 9• Our total score for the solar oven is -4Monday, May 20, 13
  11. Improve for design #1• The total score for our solar oven design was -4• The parts of our solar oven design that worked well were theblack cloth because it absorbed a lot of heat that we wantedto• The parts of our solar oven design that did not work well werethe cotton balls because they didnt insulate the heat like wewanted to• We will improve our heat score by have some dark foambecause those dark colors will absorb more heat and also butfelt on the bottomMonday, May 20, 13
  12. Plan for design #2• SideviewMonday, May 20, 13
  13. Plan for design #2• Top viewMonday, May 20, 13
  14. Plan for design #2Materials UnitsHow will weuse thematerialFelt 1 sheetWe will leave itflatColored foam 1 sheetWe will leave itflatBlack foam 1 sheetWe will leave itflatMonday, May 20, 13
  15. Impact score for design #2Design#2ReduceNaturalOrProcessedReuse RecycleTotalpointsFeltColoredfoamBlack foam1 unit Processed No No 4 points1 unit Processed No Yes 2 points1 unit Processed No No 4 pointsOur total impact score is 10 pointsMonday, May 20, 13
  16. Solar oven design#2 the sunTime Tempeture0 minutes 16°C5 minutes 25.9°C10 minutes 27.9°C15 minutes 28.5°C20 minutes 30.3°C25 minutes 39.1°C30 minutes 40.4°CMonday, May 20, 13
  17. Solar oven in the shadedesign #2Time Tempeture1 minute 31.9°C2 minutes 26°C3 minutes 23°C4 minutes 21°C5 minutes 19.7°C6 minutes 18.8°C7 minutes 18.2°C8 minutes 17.7°C9 minutes 17.3°C10 minutes 17.1°CMonday, May 20, 13
  18. Create for design #2• Our heat score is our solar oven maximumtemperature subtracted from the control oven:40°C - 41°C= -1• Our time score is the number of minutes it tookto cool down witch was 4 minutes• Our total impact score was 10 points• Our new total score is -7 pointsMonday, May 20, 13
  19. Reflection• Our improved design did not work because thegreen foam did not insulate enough. The black foamdid not keep the heat in the heat as we thoughtbecause dark colors absorb heat, so we thought thatit would hold it in.• If we could improve again, we would get newspaperto insulate the heat and take out the black foam andthe green foam and keep the red felt. Thenewspaper will go on the sides and a little bit on theoutside of the felt while the felt is in the middle.Monday, May 20, 13

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