Accurate determination of the luminous and thermal performance of fenestration systems that incorporate optically complex components requires detailed knowledge of their radiant behavior. We describe a large scanning radiometer used to measure the bidirectional transmittance and reflectance of fenestration systems and components. We present examples of measured data obtained for simple non-specular samples. We describe a method of obtaining the overall properties of fenestration systems by calculation from scanning radiometer measurements of fenestration components. Finally, we describe the application of bidirectional solar-optical properties of fenestration systems to determine their luminous and thermal performance with respect to building energy consumption and occupants comfort. We also discuss the advantages and limitations of the method, which appears to be promising.
BT - 13th National Passive Solar Conference C1 -Windows and Daylighting Group
C2 - LBL-25124 CN - LBL-25124 CY - Cambridge, MA DA - 06/1988 LA - eng N2 -Accurate determination of the luminous and thermal performance of fenestration systems that incorporate optically complex components requires detailed knowledge of their radiant behavior. We describe a large scanning radiometer used to measure the bidirectional transmittance and reflectance of fenestration systems and components. We present examples of measured data obtained for simple non-specular samples. We describe a method of obtaining the overall properties of fenestration systems by calculation from scanning radiometer measurements of fenestration components. Finally, we describe the application of bidirectional solar-optical properties of fenestration systems to determine their luminous and thermal performance with respect to building energy consumption and occupants comfort. We also discuss the advantages and limitations of the method, which appears to be promising.
PP - Cambridge, MA PY - 1988 T2 - 13th National Passive Solar Conference T3 - 13th National Passive Solar Conference TI - Determination and Application of Bidirectional Solar-Optical Properties of Fenestration Systems ER -