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Christopher rios

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  • 1. BY CHRISTOPHER R.DESIGN A SOLAR OVENMonday, May 20, 13
  • 2. Imagine for design #1• Idea #1 did not work well but it kept most of the heat in the solar oven.• Our materials are the dark cloth, and the foam plate.• We need 1 unit for the dark cloth and 2 for the foam plates.• The advantage of this idea are that the cloth is reusable and the foam isrecyclable, the cloth absorbs more of the heat and the foam traps theheat in the solar oven, the foam is around the box.• The disadvantage of this idea is the flame tacks more time to breakdown in a land fill and it will impact on our impact score.Monday, May 20, 13
  • 3. Imagine for design #1• Idea #2 is to put foam on the bottom and the cloth on thesides of the solar oven.• Our materials are light cooled cloth and foam plates.• We need 2 units of light cloth and 1 unit of foam plates.• The advantage of this idea is that the foam is now at thebottom and the cloth on the sides.• The light cloth did not absorb that much heat.Monday, May 20, 13
  • 4. Plan for design #1Top viewMonday, May 20, 13
  • 5. Plan for design #1Side viewMonday, May 20, 13
  • 6. Plan for design #1Material UnitsWe will use thematerial byFoam 2 unitsPutting them inthe side of theboxDarkCloth1 unitSherd themand spreadthem outMonday, May 20, 13
  • 7. Design#1FoamplateDarkclothMaterialReduceNatural orprocessedReuse Recycle2 Units Processed No Yes1 Units Processed Yes NoUnitsTotalPoints52Our total impact score is 7 PointsMonday, May 20, 13
  • 8. Solar oven testing in the sunTime0 min5 min10 min15 min20 min25 minTemperature2548.750.455.559.458.8Monday, May 20, 13
  • 9. Solar oven in the shadeTime1 min2 min3 min4 min5min6min7minTemperature41.736.034.232.030.5Monday, May 20, 13
  • 10. Create for design #1• Our heat score is our solar oven maximum temperaturesubtracted from the control oven: 58°c - 56° c = 3• Our time score in the number of minutes it tuck to cooldown witch was 3 min.• Our total impact score was 7 points.• Our total score from the solar oven is -1.Monday, May 20, 13
  • 11. Improve for design #1• The total score from our total oven was -1 points.• The parts of our solar oven design that worked well were the foamon the side of the box because it kept the heat from escaping thesolar oven.• The parts of our solar oven design that did not work well were theshreds of dark cloth did not work well because it was spread out tomuch let the heat out very easily.• We were trying to improve our heat score.• We will improve our heat score by putting foam on the bottom andthe cloth on the sides.Monday, May 20, 13
  • 12. Plan for design #2• Top viewMonday, May 20, 13
  • 13. Plan for design #2Side viewMonday, May 20, 13
  • 14. Plan for design #2Materials Units How will you use thematerialLightCloth1 unit Fold itWhiteFoam2 units Fold itMonday, May 20, 13
  • 15. Impact score for design# 2Design#2ReduceNaturalorprocessedReuse RecycleLightclothFoam1 unit Possessd No Yes2 unitsProcessedYes NoTotalPoints5 Points2PointsMonday, May 20, 13
  • 16. Solar Oven Testing in SunTime0 min5 min10 min15 min20 min25 min30 minTemperature16 ° c30.2°c34.6°c36.7°c37.8°c37.6° c40.4° cMonday, May 20, 13
  • 17. Solar OvenTesting in ShadeTime1 min2 min3 min4 min5 min6 min7 minTemperature31.5°c26.4°c23.0°c21.3°c19.8°c18.8°c18.0° cMonday, May 20, 13
  • 18. Create for design #2• Our heat score is our solar oven maximum temperaturesubtracted from the control oven: 41-41=0.• Our time score is the number of minutes it took to cooldown witch was 4.• Our total impact score was 7.• Our new total score for the solar oven is -3.Monday, May 20, 13
  • 19. Reflection• The solar oven that we designed only reached the temperature of41°C and it was lower than last time so we did not improve thatmuch. Also we used light cloth witch did not absorb a lot of heat andthe foam was the only insulator.• I say that our design did work. It absorbed a lot of heat but after afew minutes the temperature would not go up and cooled downreally fast so it let the heat out and we want to prevent that fromhappening.• If we could improve our design, we would use felt and sand becausethey both get hot when exposed to the sun. And they only let a littlebit of heat out. The felt is also thick and sand gets really hot like forexample in a beach.Monday, May 20, 13

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