소규모 사무실에 적용된 조광제어 시스템의 최적제어를 위한 주광변화 분석

다국어 초록 (Multilingual Abstract)

The influence of outdoor sky conditions on photosensor signals were examined to determine an appropriate index that is effectively used for optimum illuminance fluctuation when a daylight dimming system is used for a small office. Field measurements were conducted under various sky conditions. Results indicate that the outdoor global and vertical illuminance fluctuated within narrow ranges under clear and overcast sky conditions. The fluctuation of sky ratio under partly-cloudy sky caused wide ranges of illumnance fluctuation. A partially-shielded photosensor at backwall produced 56% of light output from fixtures controlled by a photosensor at ceiling. This implies that the photosensor at backwall does not always guarantee target illuminance due to the less output. The fluctuation of light output from fixtures were insignificant under clear and overcast sky. The fluctuation range of photosensor illuminance under partly-cloudy sky caused wide fluctuation ranges of light output. Regression result implies that the outdoor vertical illuminance was recommended for an effective index that is used for control of light output.

목차 (Table of Contents)

• ABSTRACT
• 1. 서론
• 2. 연구 방법
• 3. 결과 및 고찰
• 4. 결론
• 후기
• 참고문헌

참고문헌 (Reference)

• 1 김수영, "The impact of daylight fluctuation on a daylight dimming control system in a small office" ELSEVIER SCIENCE SA 39 (39): 935-944, 2007
• 2 Kim, S., "Recommended daylight conditios for photosensor system calibration in a small office" 30 : 176-188, 2001
• 3 Li_Cor Inc., "Li-Cor sensor instruction manual"
• 4 김수영, "Influence of light fluctuation on occupant visual perception" PERGAMON-ELSEVIER SCIENCE LTD 42 (42): 2888-2899, 2007
• 5 Newsham G., "Individual control of electric lighting in a daylit space" 40 : 25-41, 2008
• 6 Rea, M., "IESNA Handbook 9th editions" The Illuminating Engineering Society of North America 2002
• 7 Campbell Scientific Inc., "CR 23X Micro logger operator’s manual"
• 8 Mistrick, R., "Analysis of daylight photocell placement and view in a small office" 150-160, 1997