Cost effectiveness of visibility-based design procedures for general office lighting

Technical Report · Fri Aug 01 04:00:00 EDT 1980

OSTI ID:6728740

Clear, R; Berman, S

General office lighting visibility specifications were analyzed with respect to optimization of cost effectiveness. Cost effectiveness is a function of visual performance, not visibility per se. It was found that the present procedures which utilize Equivalent Spherical Illumination are not readily adaptible to cost optimization calculations. An alternative procedure using log visibility level is derived which appears suitable for this use. A sample calculation of net benefits versus light level is presented. For the sample calculation the net benefits from visibility saturate at lower levels of visibility than are normally prescribed for office environments.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6728740
• Report Number(s): LBL-10514
• 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)
BUILDINGS
CALCULATION METHODS
COST
COST BENEFIT ANALYSIS
DESIGN
ERRORS
LIGHTING SYSTEMS
LUMINOSITY
OFFICE BUILDINGS
OPTICAL PROPERTIES
OPTIMIZATION
PERFORMANCE
PHYSICAL PROPERTIES
VISIBILITY