Allie hillerman solar oven
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Allie hillerman solar oven

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Allie hillerman solar oven Allie hillerman solar oven Presentation Transcript

  • By Allie HillermanDesigning a Solar OvenMonday, May 20, 13
  • Imagine for Design #1• Idea #1• Our materials are newspaper, sand and rocks.• We need 1 unit of sand and rocks and 2 units ofnewspaper.• The advantage of this idea is that both has the leastenvironmental impact and is a great insulator.• The disadvantage of this idea is that the newspaperisnt the best insulator of heat.Monday, May 20, 13
  • 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 advantage of this is idea is that both cotton andcloth make good insulators of heat.• The disadvantage of this idea is that cloth is in themiddle of the most and the least of environmentalimpact.Monday, May 20, 13
  • Design #1Top viewMonday, May 20, 13
  • Design #1Side viewMonday, May 20, 13
  • Plan for design #1Material UnitsWe will use thematerial byNewspaper 2 Fold itRocks and Sand 1 Leave it how it isMonday, May 20, 13
  • Impact Score for design #1Design#1ReducedNaturalorprocessedReuse RecycleTotalpointsNewspaper2 unitsProcessedYes 3 3Rocksand sand1 unit Natural No 0 0Our total impact scoreis 3 points.Monday, May 20, 13
  • Time Temperature (Celsius)0 min5 min10 min15 min20 min25.043.546.354.157.425 min 60.4Solar oven testing in the sunDesign #1Monday, May 20, 13
  • Solar oven testing in the shadeDesign #1Time Temperature (Celsius)1 min 50.02 min 42.73 min 38.14 min 36.25 min 35.56 min 34.4Monday, May 20, 13
  • 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 minutes it tookto cool down which was 5 minutes.• Our total impact score was 3 points.• Our total score for the solar oven is 7.Monday, May 20, 13
  • Improve for design #1• The total score for our first solar oven was 7.• The parts of our solar oven design that worked well were therocks and sand because they gave off the most heat.• The part of our solar oven design that did not work well was thenewspaper because the newspaper only put shade in the box.• We are going to try to improve our heat score.• We will improve our heat score by putting the oven Im moredirect sunlight or put black cloth inside the oven instead ofnewspaper to attract/absorb more sunlight.Monday, May 20, 13
  • Top viewPlan for design #2Monday, May 20, 13
  • Side viewPlan for design #2Monday, May 20, 13
  • Plan for design #2Material UnitsHow will you usethe material?ClothSand and rocks2 Cut it into strips1 Leave it how it isMonday, May 20, 13
  • Our impact score is 5pointsDesign#2ReducedNatural orprocessedReuse RecycleTotalpointsCloth 2 unitsProcessedYes No 3Sand androcks1 unit Natural No Yes 0Design #2Monday, May 20, 13
  • Solar oven testing in the sunDesign #2Time Temperature (Celsius)0 min 24.45 min 42.510 min 49.715 min 42.120 min 44.825 min 45.330 min 45.5Monday, May 20, 13
  • Solar oven testing in the shadeDesign #2Time Temperature (Celsius)1 min 37.82 min 35.43 min 33.74 min 32.85 min 31.66 min 30.97 min 29.78 min 28.99 min 28.610 min 28.3Monday, May 20, 13
  • 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
  • Reflection• Our improved design did not work well because thematerials we changed were poor at insulating heat. Thematerials were bad insulators because we got a totalscore of negative 3. We took out the newspaper andreplaced it with cloth. Because our temperaturedecreased, we knew cloth was a bad insulator.• If we could improve again, we would change thematerials. Like instead of sand and rocks, we woulduse foam because it could insulate the heat better sothe heat will increase. We know that foam is a goodinsulator because it is thick.Monday, May 20, 13