Energy conservation through the use of exterior shading of fenestration

Conference · Thu Jan 01 04:00:00 EST 1976 · ASHRAE Trans.; (United States)

OSTI ID:7300093

Ewing, W B; Yellott, J I

The outside shading of windows from direct sunlight has long been recognized as an effective means of keeping building interiors cooler in warm weather. However, prior to the general recognition of the growing shortage and high cost of energy for mechanical cooling, it has been common practice to rely on such systems for comfort conditioning and to ignore the very substantial energy savings attainable by shading sun-exposed fenestration. A review is presented of the various devices and architectural treatments for window shading. The significance of the solar profile angle is explained and tabular data are presented for its values in four major U.S. latitudes and for all times of day, year and window orientations at which fenestration is insolated. Tables are also given for solar heat gain factors in both English and metric units for sixteen principal window orientations, and shading coefficients are discussed so that the magnitude of the cooling effect from window shading can be better understood.

• Research Organization: Sunscreen Co., Fajardo, Puerto Rico
• OSTI ID: 7300093
• Conference Information: Journal Name: ASHRAE Trans.; (United States) Journal Volume: 82
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
BUILDINGS
COOLING
COOLING LOAD
COVERINGS
ENERGY CONSERVATION
ENERGY TRANSFER
HEAT TRANSFER
HEATING
HEATING LOAD
OPENINGS
RADIANT HEAT TRANSFER
RADIATIONS
SOLAR RADIATION
WINDOWS