| 논문명 |
축소모형을 이용한 광선반의 시환경 특성 평가 연구 / Visual Performance Evaluation Study of a Scaled Light-Shelf Model |
| 수록사항 |
태양에너지(한국태양에너지학회 논문집), v.23 n.3 (2003-09) |
| 주제어 |
광선반 ; Light-shelf ; 축소모형 ; Scaled model ; 주광율 ; Daylight factor ; 청천공 ; Clear sky ; 담천공 ; Overcast sky ; 실내외조도 ; Exterior-interior illuminance |
| 요약1 |
본 연구는 광선반의 실험모델을 이용한 실험과 조명해석 프로그램을 이용한 변수분석을 통해 국내의 실정에 맞는 광선반의 최적설계안 도출을 연구의 최종목적으로 하고 있으며, 현 단계에서는 실험모델의 실험을 통해 천공상태별 광선반의 성능분석과 조명해석 프로그램을 이용한 시뮬레이션 해석모델을 도출하는데 연구의 목적이 있다. |
| 요약2 |
According to the recent report, the lighting energy consumption of commercial buildings reaches to 30%～40% of the total energy consumption. It is more than that of cooling & heating energy consumption and it is the major target of energy-saving policy. It is obvious that they are interested in natural lighting device such as Light-shelf for the purpose of raising the lighting energy-saving efficiency. In most of highly developed countries, a thorough study on Light-shelf makes it possible to propose a practical plan , while at home there leaves much to be desired to study a guiding principle of optimum plan in spite of its efficiency based on experiments using scaled model and analysis of simulation.
Aiming at making an optimum plan of Light-shelf suitable for the domestic situation, this study is worked by experiments using light-shelf and analysis of variables using illumination program. The experiments is to analyse the efficiency of Light-shelf on condition of the sky and the analysis is to make the simulation using illumination program. This study is composed of 1) the analysis of light with some variables such as presence of light-shelf and degree of angle using 1/2 scaled model 2) making the simulation using Lightscape, illumination program.
In brief, concerning presence of light-shelf, it causes little difference in its efficiency in the overcast sky, whereas it decreases an illuminance of window side and provides inner side with the light, which decreases the ratio of the maximum to the minimum inner illuminance and makes the inner of illuminance to range evenly in the clear sky. On degree of angle, as the daylight increases in proportion of degree of angle, the ratio of the maximum to the minimum inner illuminance decreases, which makes it possible to increase the proportion of inner daylight. |
