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Let the Sunshine In

CSEF · 2004 Applied Mechanics/ Structures & Mechanisms/ Manufacturing

Robert C. Schult · Marshall (Thurgood) Middle School, San Diego

Overview

Objectives/Goals Many Houses in San Diego have old windows that are very inefficient. There is now other window options. I examined four different configurations of windows to see which one was the most efficient. Methods/Materials I used four boxes made from plywood, each with a different window configuration to test their efficiency. By putting the four boxes corner to corner with the window facing in. This creates a center area where the heat source, a 100-watt light bulb, generates heat. The light source was turned on and left for 22 minutes to heat up the center area to a stabile temperature. The temperatures inside the boxes were measured and recorded. There were 10 trials done. Results The Low emistivity double paned window was the most efficient followed by the Triple Pane. Next was the double pane window and finally the single pane was the least efficient. Conclusions/Discussion My hypothesis was that the triple pane window would be the most efficient, but different results occurred. The Double Paned window with a Low Emistivity coating performed more efficiently than the Triple Pane. Though the Triple Pane had the most panes of glass the Low-E coating on the double pane reflected more of the light that would have other wise heated up the inside of the box.

Summary statement

The efficiency of different window constructions was examined in my experiment.

Help received

I thank my Mom for helping me with the backboard and typing the research paper. I thank my Dad for helping with the construction of the window frames and boxes and assisting with the testing. I also thank Milgard Windows for donating the Low-E glass. Last, but not least, I thank Mrs. Gillum for helping me

Competition history

  • CSEF 2004 Applied Mechanics/ Structures & Mechanisms/ Manufacturing · Entry J0232

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