Daylighting design overlays for equidistant sun-path projections

Conference · Sat Aug 01 00:00:00 EDT 1981

OSTI ID:5955803

Selkowitz, S

Projections of the Sun's daily and seasonal paths frequently are used to solve building design problems involving site obstructions and shading of fenestration. In the United States, equidistant projections are perhaps the most widely used (compared to other sunpath projections) because of the commercial availability of a complete set of sun-path diagrams for a range of useful latitudes. This paper describes the development of a set of overlays designed for use with sun-path projections to predict illumination on any building surface throughout the year for standard climatological conditions. Illumination is calculated for clear and overcast skies and for direct sunlight using algorithms recommended by the Commission Internationale de l'Eclairage (CIE). Values for illumination incident upon the surface, as well as transmitted through single and double glazing, can be calculated. Similar overlays for solar radiation are being developed.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5955803
• Report Number(s): LBL-12285; CONF-811109-3; ON: DE81030530
• Resource Relation: Conference: 1981 international passive and hybrid cooling conference, Miami Beach, FL, USA, 11 Nov 1981
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
BUILDINGS
DAYLIGHTING
DESIGN
ANNUAL VARIATIONS
CLIMATES
DAILY VARIATIONS
DIAGRAMS
ILLUMINANCE
LIGHTING SYSTEMS
MAPPING
SHADING
SITE SELECTION
SUN
ENERGY SYSTEMS
MAIN SEQUENCE STARS
STARS
VARIATIONS
320100* - Energy Conservation
Consumption
& Utilization- Buildings