ePortfolio-Natural Sciences
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Transcript of ePortfolio-Natural Sciences
Solar EnergyIB Group 4 Project
By
Ben Ruktantichoke
Kristin Coad
Claudine Torres
Emilio Solomon
Introduction
How does changing the color of an aluminum affect the
rate of temperature increase of water inside the can?
Theory
Materials
• Laptop
• Aluminum cans
• Timer
• Paint
• Paint brushes
• Thermometers
• Photo-spectrometer
• Tap water
• Tray
Procedure
• Paint six different cans in different colors
• Fill the cans with tap water
• Place one thermometer in each can
• Place the cans in direct sunlight
• Record the initial temperature of the water
• Record temperatures in two minute intervals for 20 minutes
• Repeat for three trials
Diagram Set-up
Water
Aluminum Cans
Thermometers
Sun
Timer
Diagram Set-upActual Representation
Photo-Spectrometer Graph
Total Intensity vs. Average Temperature Rate for each Color
Color Total Intensity Reflected(W/m²)
Average Temperature Rate(ºC/min)
±0.07
Black 00.6 0.25
Green 05.3 0.23
Red 13.1 0.18
Orange 20.7 0.18
Yellow 31.7 0.19
White 74.4 0.16
Conclusion & Evaluation
• The brighter the color of can is, the greater intensity reflected upon the aluminum cans.
• Intensity Reflected.
• By changing the color of the aluminum can, the average temperature rate decreases.