Procedure for calculating interior daylight illumination with a programmable hand calculator

Conference · Wed Oct 01 00:00:00 EDT 1980

OSTI ID:6929077

Bryan, H J; Clear, R D

A procedure is described for calculating interior daylight illumination using an inexpensive programmable hand calculator. The proposed procedure calculates illumination at any point within a room utilizing sky luminance distribution functions that are consistent with the CIE (Commission Internationale de l'Eclairage) Overcast and Clear Sky functions. This procedure separates the light reaching the point being considered into three components, these being (a) light directly from the sky, (b) light after being reflected from external, and (c) internal surfaces. Finally, two examples are presented in order to demonstrate the proposed procedure and indicate the speed with which the calculations may be performed.

• Research Organization: California Univ., Berkeley (USA). Lawrence Berkeley Lab.
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6929077
• Report Number(s): LBL-11186; CONF-801016-17; EEB-W-80-11
• Resource Relation: Conference: 5. national passive solar conference, Amherst, MA, USA, 19 Oct 1980
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
14 SOLAR ENERGY
BUILDINGS
LIGHTING SYSTEMS
CALCULATION METHODS
CALCULATORS
CLOUD COVER
ENERGY CONSERVATION
REFLECTION
SOLAR RADIATION
VALIDATION
RADIATIONS
STELLAR RADIATION
TESTING
320100* - Energy Conservation
Consumption
& Utilization- Buildings
140900 - Solar Thermal Utilization