By: Erin BrooksDesign a solar ovenMonday, May 20, 13
Imagine for design #1• Idea#1• Our materials are newspaper and rocks and sand.• We need 2 units of newspaper and 1 unit of...
Imagining for design #1• Idea #2• Our materials are cloth and Cotten balls.• We need 2 units of cotton balls and 1 unit of...
Design #1• Top viewMonday, May 20, 13
Plan for design #1• Side viewMonday, May 20, 13
Plan for design #1Material UnitsWe will use thematerial byNews paper 2 Fold itRocks and sand 1 Leave it how it isMonday, M...
Impact score for design # 1Design #1 ReducedNatural orprocessedReuse RecycleTotalpointsNewspaper2 units Processed Yes 3 3S...
Solar oven testing in the sunTime Temperature0 minutes 25.0°C5 minutes 43.5°C10 minutes 46.3°C15 minutes 54.1°C30 minutes ...
Solar oven in the shadeTime Temperature1 50.0°C2 42.7°C3 38.1°C4 36.2°C5 35.5°C6 34.4°CMonday, May 20, 13
Create for design #1• Our heat score is our solar oven maximumtemperature subtracted from the control oven60-55=5• Our tim...
Improve for design #1• The total score for our first solar oven was 7 points.• The parts of our solar oven design that work...
Pan for design #2• Top viewMonday, May 20, 13
Plan for design #2• Side viewMonday, May 20, 13
Plan for design #2Material UnitsHow will we usethis material?ClothSand and rocks2 Cut into strips1 Leave it how it isMonda...
Impact score for design #2Design #2 ReduceNatural orprocessedReuse Recycle Total pointsCloth 2 units Processed Yes No 3San...
Solar oven testing in sunTime Temperature0 minutes 24.45 minutes 42.510 minutes 49.715 minutes 42.120 minutes 44.825 minut...
Solar oven testing in shadeTime Temperature1 minute 37.82 minutes 35.43 minutes 33.74 minutes 32.85 minutes 31.66 minutes ...
Create for design #2• Our heat score is our solar oven maximumtemperature subtracted from the control oven:50-53=negative ...
Reflection• Our improved design did not work well because thematerials we changed were poor insulators at insulatingheat. T...
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Erin brooks solar oven

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Erin brooks solar oven

  1. 1. By: Erin BrooksDesign a solar ovenMonday, May 20, 13
  2. 2. Imagine for design #1• Idea#1• Our materials are newspaper and rocks and sand.• We need 2 units of newspaper and 1 unit of rocks andsand.• The advantage of this idea is both have the leastimpact of the environment and are a great insulator.• The disadvantage of this idea is that the newspaperisnt the best insulator.Monday, May 20, 13
  3. 3. Imagining for design #1• Idea #2• Our materials are cloth and Cotten balls.• We need 2 units of cotton balls and 1 unit of cloth.• The advantage is that both Cotten and cloth aregood insulators of heat.• The disadvantage is the cloth is in the middle ofthe most and the least of environmental impact.Monday, May 20, 13
  4. 4. Design #1• Top viewMonday, May 20, 13
  5. 5. Plan for design #1• Side viewMonday, May 20, 13
  6. 6. Plan for design #1Material UnitsWe will use thematerial byNews paper 2 Fold itRocks and sand 1 Leave it how it isMonday, May 20, 13
  7. 7. Impact score for design # 1Design #1 ReducedNatural orprocessedReuse RecycleTotalpointsNewspaper2 units Processed Yes 3 3Sand androcks1unit Natural No 0 0Our total impactscore is 3 pointsMonday, May 20, 13
  8. 8. Solar oven testing in the sunTime Temperature0 minutes 25.0°C5 minutes 43.5°C10 minutes 46.3°C15 minutes 54.1°C30 minutes 57.4°C25 minutes 60.4°CMonday, May 20, 13
  9. 9. Solar oven in the shadeTime Temperature1 50.0°C2 42.7°C3 38.1°C4 36.2°C5 35.5°C6 34.4°CMonday, May 20, 13
  10. 10. Create for design #1• Our heat score is our solar oven maximumtemperature subtracted from the control oven60-55=5• Our time score is the number of minutes it tookto cool down which was 5 minutes.• Our total impact score was 3• Our total score for the solar oven is 7Monday, May 20, 13
  11. 11. Improve for design #1• The total score for our first solar oven was 7 points.• The parts of our solar oven design that worked well werethe rocks, sand, and newspaper because sand and rocksgave off the most heat and the newspaper put shade inthe box.• We are going to try to improve our heat score.• We will improve our heat score by putting the oven in moredirect sunlight or put black cloth on the oven instead ofthe newspaper to attract or absorb more sunlight.Monday, May 20, 13
  12. 12. Pan for design #2• Top viewMonday, May 20, 13
  13. 13. Plan for design #2• Side viewMonday, May 20, 13
  14. 14. Plan for design #2Material UnitsHow will we usethis material?ClothSand and rocks2 Cut into strips1 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 3Sand androcks1 unit Natural No Yes 0Monday, May 20, 13
  16. 16. Solar oven testing in sunTime Temperature0 minutes 24.45 minutes 42.510 minutes 49.715 minutes 42.120 minutes 44.825 minutes 45.330 minutes 45.5Monday, May 20, 13
  17. 17. Solar oven testing in shadeTime Temperature1 minute 37.82 minutes 35.43 minutes 33.74 minutes 32.85 minutes 31.66 minutes 30.97 minutes 29.78 minutes 28.99 minutes 28.610 minutes 28.3Monday, May 20, 13
  18. 18. Create for design #2• Our heat score is our solar oven maximumtemperature subtracted from the control oven:50-53=negative 3.• Our time score is the number of minutes it took tocool down which was 3 minutes.• Our total impact score was 3 points.• Our new total score for the solar oven is negative 3points.Monday, May 20, 13
  19. 19. Reflection• Our improved design did not work well because thematerials we changed were poor insulators at insulatingheat. The materials were bad insulators because we gota total score of negative 3. We took out the newspaperand replaced it with cloth. Because our temperaturedecreased we knew that cloth was a poor insulator.• If we could improve it again, we would change thematerials, like instead of sand and rocks we could usefoam because it could insulate the heat better so theheat will increase. We know foam is a good insulatorbecause it is thick and traps in the heat.Monday, May 20, 13

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