Selecting Windows - Florida Solar Energy Center

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Insulated windows reduce conduction, convection, and radiation Winter Summer Cold Warm Hot Cool Heat conducted through the glazing system Coatings reduce radiation transfer Insulating gas reduces conduction Proper spacing minimizes convection Insulation reduces heat conduction through the frame
Knowing Where the Sun is P Radiation from the sun is generally much stronger than that from the sky, except on hazy and partially overcast days P The sun moves through the sky in a known way each day P Radiation coming directly from the sun’s “disk” is called “direct beam radiation.” P Orienting the building and its windows is important to maximize the benefits and minimize the problems produced by direct beam solar radiation. P First we look at a generic drawing of the sun’s path through the sky on the summer and winter solstices P Then we consider how to orient a house properly relative to the sun’s positions in the sky
Page 1 and 2: Window Options Keeping cool in summ
Page 3 and 4: Finding the Right Window P It is mo
Page 5 and 6: Heat Transfer The three modes of he
Page 7: Heat Flows Through Windows Reflecte
Page 11: N Garage Orientation and shading Mi
Page 14 and 15: Breaking sunlight into its various
Page 16 and 17: Parts of the solar spectrum 1.6 1.4
Page 18 and 19: Warm Objects Emit Radiation 10 8 10
Page 20 and 21: Spectral Selectivity for Cold Clima
Page 22 and 23: Reflected solar radiation Quantifyi
Page 24 and 25: Light to Solar Gain ratio - A measu
Page 26 and 27: One can use Coatings and Tints P Hi
Page 28 and 29: Cold climate glazings Admit and tra
Page 30 and 31: NIR Hot Climate Glazings Admit visi
Page 32 and 33: Direct Beam Solar Radiation Can pro
Page 34 and 35: Orientation & Shading Strategies Ga
Page 36 and 37: Exterior Block solar window gain be
Page 38 and 39: 1.0 0.8 0.6 0.4 0.2 Spectral Transm
Page 40 and 41: Hourly Building Energy Simulations
Page 42: What Can You Do to Get Energy Perfo
Page 45 and 46: EfficientWindows.org How to Select
Page 48: Florida Green Home Certification Fl
Page 51 and 52: Guidance for the Average Building O
Page 53: Additional Information & Resources

Selecting Windows - Florida Solar Energy Center

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