Hunter

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Hunter

  1. 1. By: Hunter AliseDesigning a Solar OvenMonday, May 20, 13
  2. 2. Imagine for Design #1• Idea #1• Our materials are newspaper and sand and rocks.• We need 1 unit of sand and rocks and 2 units ofnewspaper.• The advantages of this idea is that rocks and sandcan get really hot. Both materials have a lowenvironmental impact and are great insulators.• The disadvantage of this idea is that the newspaperisnt the best insulator of heat.Monday, May 20, 13
  3. 3. Imagine for Design #1• Idea #2• Our materials are cotton balls and cloth.• We need 1 unit of cloth and 2 units of cotton balls.• The advantages of this idea is both cotton andcloth are great insulators of heat.• The disadvantages of this idea is that cloth doeshave a good amount of environmental impact.Monday, May 20, 13
  4. 4. Plan for Design #1• Top ViewMonday, May 20, 13
  5. 5. Plan for Design #1• Side ViewMonday, May 20, 13
  6. 6. Plan for Design #1Material UnitWe will use thematerial byNewspaper 2 Fold itRocks and Sand 1 Leave it how it isMonday, May 20, 13
  7. 7. Impact Score for Design #1Design #1 ReduceNatural orProcessedReuse Recycle Total PointsRock andSand1 Units Natural No Yes 0Newspaper 2 Units Processed Yes Yes 3Our total impact score is 3 points.Monday, May 20, 13
  8. 8. Solar Oven Testing in the SunTime Temperature0 minuets 25°c5 minuets 43.5°c10 minuets 46.3°c15 minuets 54.1°c20 minuets 57.4°c25 minuets 60.4°cMonday, May 20, 13
  9. 9. Solar Oven in the ShadeTime Temperature1 minuet 50°c2 minuet 42.7°c3 minuet 38.1°c4 minuet 36.2°c5 minuet 35.5°c6 minuet 34.4°cMonday, May 20, 13
  10. 10. Create for Design #1• Our heat score is our solar oven maximumtemperature subtracted from the control oven:60-55=5• Our time score is the number of minuets it tookto cool down which was 6 minuets.• Our total impact score was 3 points.• Our total score for the solar oven was 8.5+6-3=8Monday, May 20, 13
  11. 11. Improve for Design #1• The total score for our first solar oven was 8 points.• The parts of our solar oven design that worked wellwere the rocks and sand because it gave off the mostheat.• The parts of our solar oven design that did not work wellwere the newspaper because it made shade in the box.• We are going to try to improve our heat score.• We will improve our heat score by taking out thenewspaper and adding cloth because cloth is betterinsulator than newspaper.Monday, May 20, 13
  12. 12. Plan for Design #2• Top ViewMonday, May 20, 13
  13. 13. Plan for Design #2• Side ViewMonday, May 20, 13
  14. 14. Plan for Design #2Materials UnitsHow will you use thematerials?Cloth 2 Cut itSand and Rocks 1 Leave it how it isMonday, May 20, 13
  15. 15. Impact Score for Design #2Design #2 ReduceNatural orProcessedReuse Recycle Total PointsCloth 2 units Processed Yes No 3 pointsRocks andSand1 unit Natural No Yes 0 pointsTotal Impact Score is 3.Monday, May 20, 13
  16. 16. Solar Oven Testing in SunTime Temperature0 min. 16°c5 min. 29.8°c10 min. 31.7°c15 min. 34.2°c20 min. 36°c25 min. 37.6°c30 min. 39°cMonday, May 20, 13
  17. 17. Solar Oven Testing in ShadeTime Temperature1 min. 32°c2 min. 28.6°c3 min. 25.4°c4 min. 23.2°c5 min. 21.9°c6 min. 20.9°c7 min. 20.4°cMonday, May 20, 13
  18. 18. Create for Design #2• Our heat score is our solar oven maximumtemperature subtracted from the control oven:39-41= -2• Our time score is the number of minuets it tookto cool down which was 6 minuets.• Our total impact score was 3 points.• Our new total score for the solar oven is 1.Monday, May 20, 13
  19. 19. Reflection• Our improved design didnt work better because wewere trying to improve our heat score but did not getclose to the last heat score. The material we changedwas the newspaper for cloth. We thought that darkcloth would be a better insulator because when youwear dark clothes you get hot.• If we could improve this design again we would takeout the cloth and put in more newspaper because onour design #1 newspaper was a better insulator ofheat.Monday, May 20, 13

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