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Solar Home Project: Day Lighting. By: Chris Glaug, Jim Thompson, Keegan Behm, Joe Maranowski. Problems. Traditional lighting uses significant amounts of electricity. The windows need to let in a sufficient amount of light while providing adequate insulation.
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Solar Home Project: Day Lighting By: Chris Glaug, Jim Thompson, Keegan Behm, Joe Maranowski
Problems • Traditional lighting uses significant amounts of electricity. • The windows need to let in a sufficient amount of light while providing adequate insulation. • Changes in the season and weather conditions affect the amount of natural sunlight.
Mission Statement • To find the best and most suitable way to create a comfortable environment through natural lighting • Lower heating and electricity use
The Daylighting Tradeoffs But windows let out more heat in winter, using more heat energy • Natural light is let in with windows and skylights, using less electricity for light
Areas of Heat Loss in a Home http://www.bbc.co.uk/schools/gcsebitesize/science/images/energy_saving_1.jpg
Design Features -Awning on the outside windows on the south side of the house - Use of mirrors - Tubular lighting - One Way mirrors - Argon insulated windows - Low walls - White glossy paint Argon insulated windows Tubular lighting Awning over window White walls reflecting light
House Design: Outside • Windows are placed at the south side of the home, where it is exposed to the most sunlight • Top layer of windows on the roof are more heavenly insulated to minimize heat loss in the winter, but can be opened in summer for ventilation South Side
House Design: Inside • Low Walls allow sunlight to be spread across multiple rooms, while still maintaining privacy • Walls are painted a glossy white so that light can be reflected easily • One way mirrors are placed on the East and West sides of the home to let light in and reflect it around the home.
Windows continued… Specifications • Double-Hung Style for easy ventilation • Multiple Paned filled with Argon Gas for insulation • Foam warm edge spacer to reduce heat flow and prevent condensation • Low-E glass coating for lighting and insulation • Wood Frame (organic) for insulation
Awning Summer Sun Awning Window • Placed over windows to direct the amount of sunlight into the home during certain seasons • Solar Paneled on Top Winter Sun
Low-E Glass Coated Windows Thermal Image of Low-E Vs. Non Low-E Windows Summer Heat Gain is dramatically reduced. Winter Heat Loss is dramatically reduced.
Tubular Skylights • Able to gather sunlight at the roof and transmit it down through a lens mounted in the inside • Natural Sunlight without electric lighting • Small and Discrete
Cost Analysis • Tubular lighting w/ installation……………….$900 x 2 • Solar System……………………….................$60,000 • Windows…………………..………$400 x 7 + $218 x 7 • One Way Mirrors………………………..……..$800 x 2 • Awning…………………………………………… $1350 • Estimated Total………….………………..........$66,300