THE DISTRIBUTION OF ERRORS IN THE DESIGN OF INDIRECT LIGHTING WITH SQUARE LUMINAIRES
Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2012, Vol 59, Issue 255
Abstract
Square / rectangular luminaires lighting in a lambert way are usually used in large installations of indirect lighting. In order to investigate the operation of the most popular in Poland international programs Relux and Dialux, square luminaire was simulated. Achieving a relative height greater than the threshold distance of photometery in the test room was the main target of the simulation. In order to assess the accuracy of the calculation of lighting system with a square luminaire, researchers compared the maximum illuminance Emax calculated by using the programs in the main axis of the source, ie under the luminaire. Then they calculated, the real illuminance distribution Ep.rz at the surface of the floor, which was compared to the schedule prescribed under the law of inverse squares. On this basis, they made analysis of errors occurring between the results obtained from the programs and the results of the real illuminance. All simulations were performed by changing the height of suspended luminaire above the floor from 0.25 m to 3.0 m.
Authors and Affiliations
Andrzej PAWLAK, Krzysztof ZAREMBA
Keywords
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