Determination and application of bidirectional solar-optical properties of fenestration systems

Conference · Tue Mar 01 04:00:00 EST 1988

OSTI ID:5061693

Papamichael, K; Klems, J; Selkowitz, S

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.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• OSTI ID: 5061693
• Report Number(s): LBL-25124; CONF-880615-3; CONF-880615-; ON: DE88010364
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
DAYLIGHTING
EFFICIENCY
MEASURING INSTRUMENTS
OPENINGS
OPTICAL PROPERTIES
PERFORMANCE
PHYSICAL PROPERTIES
RADIATION DETECTORS
RADIOMETERS
REFLECTIVITY
SURFACE PROPERTIES
THERMAL EFFICIENCY
WINDOWS