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  1. 1. DESIGNING A SOLAR OVENBy,ZacharyMonday, May 20, 13
  2. 2. IMAGINE FOR DESIGN #1• Idea#1• Our materials are dark cloth,felt,and sand.• We need 1 unit for sand,felt, and dark cloth.• The advantage of are idea is that we -1 point.• We dont any disadvantages.Monday, May 20, 13
  3. 3. IMAGINE FOR DESIGN #2• Idea #2• Our materials are dark cloth• We need 3 units of felt• We can youse the the felt again after we are done with it andit has a low environmental impact.Monday, May 20, 13
  4. 4. PLAN FOR DESIGN #1Monday, May 20, 13
  5. 5. PLAN FOR DESIGN #1Monday, May 20, 13
  6. 6. Dark cloth 1We will use it forthe bottomFelt 1We use it for thesidesSand 1We will put itaround the clothMonday, May 20, 13
  7. 7. IMPACT SCORE FOR DESIGN #1Design #1 Reducenatural orprocessedReuse RecycleSandFeltDarkCloth1 Natural Yes Yes1 Processed No No1 Processed Yes NoTotal1326Monday, May 20, 13
  8. 8. SOLAR OVEN TESTING INTHESUNTime Temperature0 minutes 25°C5 minutes 49°C10minuts 49.4°C15minuts 49.4° C20minuts 49.4°C25minuts 49.2°CMonday, May 20, 13
  9. 9. SOLAR OVENTESTING INTHESHADETime Temperature1 minutes 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 is our solar oven maximum temperature subtractfrom the control score:49-55= -6• Our total impact score is 6• Cant answer any other questions because I did not collectcorrect dataMonday, May 20, 13
  11. 11. IMPROVE FOR DESIGN #1• The total score for our solar oven was -6 points• The parts of our solar oven that worked well was the flat felt because itkept the heat in.• The parts of the solar oven that did not work was the sand because it didnot heat the air and the dark cloth because it didnt help much to keep theheat.• We are try to improve we will try to improve all are scores• We will improve are time score by not messing with the solar oven and wewill improve the heat score by replacing the sand with anther unit of felt.Monday, May 20, 13
  12. 12. PLAN DESIGN #2TOPVIEWMonday, May 20, 13
  13. 13. PLAN FOR DESIGN #2Monday, May 20, 13
  14. 14. PLAN FOR DESIGN #2Materials UnitsHow will youuse thematerialsFelt 2I will hang it onthe sidesDark cloth 1I will sheared itand put it onthe bottomMonday, May 20, 13
  15. 15. PLAN DESIGN FOR #2Design #2 ReduceNatural orprocessedReuse RecycleFeltDark cloth4 Processed No No1 Processed Yes Np+ 72 =9Monday, May 20, 13
  16. 16. SOLAR OVENTESTING INTHESUNTime Tempture0 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 OVENTESTING INTHESHADETime Temperature1 minutes 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 oven score maximum temperaturesubtracted from the control oven:43–41=2• Our time score is the number of minutes it took to cool downwitch was 5 minutes.• Our total impact score was 9 points• Our new total score for the solar oven is -2Monday, May 20, 13
  19. 19. REFLECTION• Our improved design worked better because we added morefelt and sheared the cloth. The felt kept more heat in than thesand and the cloth did not change the heat score whensheared.We know our design worked because our overallscore increased.• If we could improve again, we would replace the cloth withnewspaper because it will give us a lower impact score.Monday, May 20, 13