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A Study on the Computer Simulation Estimate of Light Shelf Using Lightscape  

Cho, Yil-Sik (Korea Institute of Energy Research)
Kim, Ki-Se (Korea Institute of Energy Research)
Yoon, Jong-Ho (Dep. of Architectural Engineering, Hanbat National University)
Lee, Jin-Sook (Dep. of Architectural Engineering, Chungnam National University)
Publication Information
Journal of the Korean Solar Energy Society / v.23, no.3, 2003 , pp. 93-102 More about this Journal
Abstract
One of the promising optical daylighting systems is light shelf type daylighting system, Two types of lighting performance analysis methods are 1) Ray-Tracing method and 2) Radiosity method. The purpose of this paper is to compare two methods in terms of advantages and disadvantages by further looking at the detail algorithm. Also. model verification with Lightscape simulations has been conducted. Effectiveness of light penetration factor in terms of daylighting factor has been investigated and quantified. In summer time. the performance of the light shelf was twice better than the case without it.
Keywords
Daylighting; Glare; Light shelf; Ray tracing method; Radiosity method; Daylight factor;
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  • Reference
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