Jaxon holt designing a solar oven


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Jaxon holt designing a solar oven

  1. 1. Designing a Solar OvenBy Jaxon HoltMonday, May 20, 13
  2. 2. Imagine for Design #1• Idea #1• Our materials are dark felt, dark cloth, and sand.• We need 1 unit for each material.• The advantages of this idea are that the morematerials, the more opportunities for more heat anddoes not hurt the environment. We also have a -1point.• The disadvantage of this idea is that the sandmight not heat up the air.Monday, May 20, 13
  3. 3. Imagine for Design #1• Idea #2• Our material is dark shredded felt• The advantage to this idea is that we canreuse or recycle the felt after this project.• The disadvantage to this idea is that it onlyhas one material.Monday, May 20, 13
  4. 4. Plan for Design #1•top viewMonday, May 20, 13
  5. 5. Plan Design #1•side viewMonday, May 20, 13
  6. 6. Plan for Design #1Material UnitsWe will usethe materialbyDark Felt 1The felt willabsorb heat andit will be placedon the walls.Dark Cloth 1The cloth willabsorb the heatand will be placedon the bottom.Sand 1Sand gets reallyhot when the sunheats it and it willbe next to thecloth.Monday, May 20, 13
  7. 7. Impact Score for Design #1Design#1ReduceNaturalorProcessedReuseRecycleTotalPointsSandFeltDarkCloth1 pointNatural-1 pointYes-1 pointYes-1 point1 point1 pointProcessed+1 pointNo+1pointNo+1point3points1 pointProcessed+1 pointYes-1 pointNo+1point2pointsOur total impact score is 6 points.Monday, May 20, 13
  8. 8. Solar Oven Testing in the SunTime Temperature0 minutes 25°C5 minutes 49°C10 minutes 49.4°C15 minutes 49.4°C20 minutes 49.4°C25 minutes 49.2°CMonday, May 20, 13
  9. 9. Solar Oven in the ShadeTime Temperature1 minute 49.2°C2 minutes 49.1°C3 minutes 49°C4 minutes 48.9°C5 minutes 48.9°C6 minutes 48.9°CMonday, May 20, 13
  10. 10. Create for Design #1• Our heat score is our solar oven maximumtemperature subtracted from the control oven:49.4°C - 55°C = -6• Our time score is the number of minutes it tookto cool down but we did not collect accuratedata.• Our total impact score was 6 points.• We did not get accurate results so we do nothave an accurate total score.Monday, May 20, 13
  11. 11. Improve for Design #1• We did not have an accurate result for our total oven score.• The part of our solar oven design that worked well was thefelt because the felt absorbed the most sunlight and thatmade the oven hotter.• The part if our solar oven that did not work well was the sandbecause it didnt heat up a lot or as much as we thought andthat did not heat the oven.• We are going to try to improve our heat and time.• We are going to improve our heat by using foam and feltbecause they are both good heat conductors. We are goingto improve our time by letting the better conductors collectmore heat.Monday, May 20, 13
  12. 12. Plan for Design #2Monday, May 20, 13
  13. 13. Plan for Design #2Monday, May 20, 13
  14. 14. Plan for Design #2Material UnitsHow we willuse thematerialFlat felt 2We will put it onthe sides.Shredded darkcloth1We will put thison the bottom.Monday, May 20, 13
  15. 15. Impact Score for Design #2Design#2ReduceNatural orprocessedReuseRecycleTotalpointsFlat felt 4 pointsProcessed+1pointNo+1pointNo+1point7 pointsShredded darkcloth1 pointProcessed+1pointYes-1 pointNo+1point2 pointsOur total solar oven score is 9 points.Monday, May 20, 13
  16. 16. Solar Oven Testing in the SunTime Tempertature0 minutes 16°C5 minutes 37°C10 minutes 37.4°C15 minutes 39.1°C20 minutes 42°C25 minutes 41.6°C30 minutes 43.2°CMonday, May 20, 13
  17. 17. Solar Oven Testing in theShadeTime Temperature1 minute 35.8°C2 minutes 29.7°C3 minutes 25.7°C4 minutes 23.1°C5 minutes 21.2°C6 minutes 20.2°C7 minutes 19.3°C8 minutes 18.8°C9 minutes 18.4°C10 minutes 18.1°CMonday, May 20, 13
  18. 18. Create for Design #2• Our heat score is our solar ovens maximumtemperature subtracted from the control ovensmaximum temperature. 43°C-41°C=2°C• Our time score is the number of minutes it tookto cool down which was 5 minutes.• Our total impact score was 9 points.• Our new total score -2 points.Monday, May 20, 13
  19. 19. Reflection• Our improved design worked well because it got to ahigh temperature but it did not insulate that heat forlong so our insulation was not really good. Thematerials we used like dark cloth and felt forinsulators we poor because they did not hold theheat in and we know that because when we put ouroven in the shade the temperature dropped fast.• If we could improve again we would improve theinsulators because keeping the heat in was our onlybig problem our solar oven had.Monday, May 20, 13