Scholarly
Volume:2, Issue: 4, 2008 Page No: 677 - 680
International Journal of Electrical, Electronic and Communication Sciences
ISSN: 2517-9438
1054 Downloads
The Experimental and Numerical Analysis of a Lightpipe using a Simulation Software
A lightpipe is an about 99 percent specular reflective mirror pipe or duct that is used for the transmission of the daylight from the outside into a building. The lightpipes are usually used in the daylighting buildings, in the residential, industrial and commercial sectors. This paper is about the performances of a lightpipe installed in a laboratory (3 m x 2.6 m x 3 m) without windows. The aim is to analyse the luminous intensity distribution for several sky/sun conditions. The lightpipe was monitored during the year 2006. The lightpipe is 1 m long and the diameter of the top collector and of the internal diffuser device is 0.25 m. In the laboratory there are seven illuminance sensors: one external is located on the roof of the laboratory and six internal sensors are connected to a data acquisition system. The internal sensors are positioned under the internal diffusive device at an height of 0.85 m from the floor to simulate a working plane. The numerical data are obtained through a simulation software. This paper shows the comparison between the experimental and numerical results concerning the behavior of the lightpipe.
Authors:
Keywords:
References:
[1] C. L. Robbins, "Daylighting Design & Analysis," Ed. New York: Van