썬 파이프 시스템의 채광성능 평가를 위한 예비실험

Daylighting represents a free source of illumination of building’s internal space. The daylighting affects on the human biological cycles and physiological alterations. Therefore the absence of natural light during the day brings contradictory result. To solve the problems of natural light lack and provide sufficient daylight in interior spaces, it might be necessary to apply some daylighting systems. One of these systems, sun pipe system, which is simple, cheep and easily constructed, is very useful to apply for small buildings and houses. In order to application of sun pipe system in Korea, it is necessary to optical data of sun pipe system.The purpose of this study is preliminary experiment of the daylighting performance of sun pipe system. Sun pipe system was installed in a windowless mock-up with 27㎡. Illuminance was measured with a Topcon IM-5 Luxmeter to evaluate the distribution of the illuminance on a floor. The indoor and outdoor illuminance and the internal/external illuminance ratio are compared to discuss with in the graphs.