Antireflected polyester films and low-iron glass sheets have values of solar transmittance that are substantially higher than those of their untreated counterparts. The plastic films utilize coatings to reduce losses due to surface reflectance and the glass is made with low levels of impurities to reduce absorption within the material itself. In this paper, we discuss the optical and thermal properties of these materials and derive the solar and thermal characteristics of windows incorporating high transmittance glazing layers. Comparisons among these and other types of windows are made on the basis of net energy use for residential buildings in winter.
BT - 6th International Passive and Solar Conference C1 -Windows and Daylighting Group
C2 - LBL-12288 CN - LBL-12288 LA - eng N2 -Antireflected polyester films and low-iron glass sheets have values of solar transmittance that are substantially higher than those of their untreated counterparts. The plastic films utilize coatings to reduce losses due to surface reflectance and the glass is made with low levels of impurities to reduce absorption within the material itself. In this paper, we discuss the optical and thermal properties of these materials and derive the solar and thermal characteristics of windows incorporating high transmittance glazing layers. Comparisons among these and other types of windows are made on the basis of net energy use for residential buildings in winter.
PY - 1981 SP - 141 EP - 145 T2 - 6th International Passive and Solar Conference T3 - 6th International Passive and Solar Conference TI - Thermal Performance of Windows Having High Solar Transmittance ER -