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Solar Ovens By: Juan Gomez Perry Francois-Edwards Luis Perez
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Outline Intro Insulators Hypothesis 3 Modes of Heat Transfer Procedure Results Conclusion
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Introduction Project Theme: thermal energy/energy transfer Built a solar oven using 3 insulators: Cotton Styrofoam Newspaper
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Insulators A material that does not allow energy transfer For our experiment, the insulator kept the heat inside the box Thermal Conductivities: Cotton balls: 0.030 W/m-K Newspaper: 0.050 W/m-K Styrofoam: 0.033 W/m-K
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Hypothesis The insulator with the lowest value of thermal conductivity would be the most efficient insulator Cotton should win!
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Heat Transfer Energy in the form of heat Conduction Convection Radiation
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Conduction The heat transfer that occurs when a temperature difference exists in a stationary medium
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Convection The heat transfer between a surface and a moving fluid that are different temperatures
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Radiation The heat transfer of all surfaces of finite temperature emitted in the form of electromagnetic waves
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Materials Pizza boxes Aluminum foil Black foam board Plastic Wrap Tape Glue Knives Scissors Sticks Thermometers Insulators Ingredients for S’mores
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Procedure
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Results
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Conclusions Because cotton had the lowest thermal conductivity, it was the most effective insulator.
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For Your Time
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