Brooke b


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Brooke b

  1. 1. Designing a solar ovenBy: Brooke ButlerMonday, May 20, 13
  2. 2. Imagine for design #1Idea #1Our material are felt flat and shredded clothWe need 2 units of felt and 1 unit of clothAn advantage would be that we would get a goodinsulation with the feltA disadvantage is getting a high score on environmentimpactMonday, May 20, 13
  3. 3. Imagining for designing #2Idea #2Are materials are shredded foam on bottom and flat felt onsidesWe need 1 unit if foam and 2 units of feltAn advantage of ore idea is that we will have better insulationthen we had in the 1st ideaA disadvantage is that foam has a high amount ofenvironmental impactMonday, 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 design #1Material UnitsHow will you useit?Felt 2 units Keep it flatCloth 1 unit ShreddedMonday, May 20, 13
  7. 7. Impact score for design #1Design#1ReduceNaturalorprocessedReuse Recycle TotalFelt4 points(2 units)Processed(+1 point)No(+1 point)No(+1 point)7 pointsCloth1 point(1 unit)Processed(+1 point)Yes(-1 point)No(+1 point)2 pointsT O T A L 9 pointsMonday, May 20, 13
  8. 8. Solar oven testing in sunTime TemperatureO minutes 25°c5 minutes 53.8°c10 minutes 54.2°c15 minutes 54.3°c20 minutes 55.6°c25 minutes 55.1°cMonday, May 20, 13
  9. 9. Solar oven in the shadeTime TemperatureI minute 47.3°c2 minutes 42.4°c3 minutes 37.7°c4 minutes 35.6°c5 minutes 34.1°c6 minutes 31.9°cMonday, May 20, 13
  10. 10. Create for design #1Our heat score for are solar oven maximumtemperature subtracted from the control oven:56°c - 55°c = 1Our time score is the number of minutes it took to cooldown which was 4 minutesOur total impact score was 9 pointsAre total score for are solar oven was -4Monday, May 20, 13
  11. 11. Improve for #1The total score for our first solar oven was -4 pointsThe part of our solar oven that worked well was, our time score. ourtime score worked the best because it took a longer time to cooldownThe part of our solar oven that did not work well was ,installation.We did not have installation that work because it was not thickWe are going to try to improve our heat scoreWe will improve our heat score by putting thicker installationbecause it was not thickMonday, 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 design #2Materials UnitsHow will we useit?Felt 1 Cut in halfFoam 2 ShredMonday, May 20, 13
  15. 15. Impact score #2Design#2ReduceNaturalorprocessedReuse Recycle TotalFelt1 point(1 unit)Processed(+1 point)No(+1 point)Yes(-1 point)4 pointsFoam4 points(2 units)Processed(+1 point)No(+1 point)No(+1 point)5 pointsT O T A L 9 pointsMonday, May 20, 13
  16. 16. Solar oven testing in the sunTime Temperature0 minutes 16° c5 minutes 27.6°c10 minutes 30.3°c15 minutes 32°c20 minutes 33.2°c25 minutes 34.2°c30 minutes 35.1°cMonday, May 20, 13
  17. 17. Solar oven testing in shadeTime Temperature1 minutes 27.4°c2 minutes 23.7°c3 minutes 21.1°c4 minutes 19.8°c5 minutes 18.9°c6 minutes 18.2°c7 minutes 17.8°c8 minutes 17.5°c9 minutes 17.4°c10 minutes 17.1°cMonday, May 20, 13
  18. 18. Create for design #2Our heat score is our solar oven maximum temptersubtracted from the control oven : 35-41= -6Our time score is the number of minutes it took to cooldown which was 3 minutesOur total score impact was 9 pointsOur new total score for the solar oven is -12Monday, May 20, 13
  19. 19. ReflectionOur improved design did not work because we hadpoor insulation and we had a poor time score. The feltdid not keep the heat trapped in the box because ourtemperature decreased.If we could improve again, we would use 2 units offoam for the sides and, 1 unit of cloth for the bottom.We would use this because they are both goodinsulators and they are not the worst for theenvironment.Monday, May 20, 13