Modeling the Heat Gain of a Window With an Interior Shade ... - inive

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Proceedings of Clima 2007 WellBeing Indoors Figure 4. Energy flows occurring in the glass/shade system.
Proceedings of Clima 2007 WellBeing Indoors 60 135 130 55 T glass, F 125 Temperature, C 50 45 T glass, C T shade, F 120 115 110 105 100 Temper ature, F 95 40 T shade, C 90 85 35 80 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 P Figure 5. Glass and shade temperature versus shade porosity (transmittance). 550 200 Heat Gain, W/m 2 500 450 400 350 300 250 Total Heat Gain Total Heat Gain Radiant Heat Gain 180 160 140 120 100 80 Heat Gain, Btu/hr-ft 2 200 60 150 Radiant Heat Gain 40 100 20 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 P Figure 6. Total heat gain through façade versus shade porosity (transmittance). Convection coefficients We next explore the impact of convection coefficients on total solar heat gain. As a reminder, the properties of the glass and shade are: Glass Shade Transmissivity 0.23 0.53 Reflectivity 0.11 0.22 Absorptivity 0.66 0.25
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Modeling the Heat Gain of a Window With an Interior Shade ... - inive

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