Predicted impact of linear roof apertures on the energy performance of office buildings

Conference · Sat Oct 01 04:00:00 EDT 1983

OSTI ID:5287913

Place, W; Coutier, P; Fontoynont, M; Kammerud, R C; Andersson, B; Bauman, F; Carroll, W L; Howard, T C; Mertol, A; Webster, T L

An investigation has been made of potential lighting electricity reductions and associated thermal impacts of replacing electric light with sunlight admitted through rooftop glazing on a single-story, prototypical office building. Experimental scale models have been used to determine the fraction of the solar radiation entering the aperture which reaches the work plane as useful illumination. This information is used in a developmental version of the building energy analysis computer program BLAST-3.0 to predict reductions in lighting electricity and the impacts on energy consumption for heating and cooling the building. The results indicate that a large fraction of the electricity consumed for lighting a single-story office building can be displaced using modest amounts of glazing in the roof. Also, both heating and cooling energy consumption reductions are possible from a daylighting system, but they are substantially smaller than the potential lighting electricity reductions. The design implications of the results are discussed and future directions for the work are outlined.

• Research Organization: Lawrence Berkeley Lab., CA (USA). Passive Research and Development Group
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 5287913
• Report Number(s): LBL-16782; CONF-830980-5; ON: DE86015189
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320103* -- Energy Conservation
Consumption
& Utilization-- School
Municipal
& Other Public Buildings-- (-1987)
APERTURES
BUILDINGS
COVERINGS
EFFICIENCY
ENERGY CONSUMPTION
ENERGY EFFICIENCY
FUEL CONSUMPTION
GLAZING
OFFICE BUILDINGS
OPENINGS
ROOFS