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http://dx.doi.org/10.5207/JIEIE.2007.21.1.001

Analysis of Simulation of Daylight and Experiment for Determining on Effective Dimming Ratio  

Kim, Ga-Young (세종대학교 건축공학과)
Kim, Yu-Sin (세종대학교 건축공학과)
Choi, An-Seop (세종대학교 건축공학과)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.21, no.1, 2007 , pp. 1-9 More about this Journal
Abstract
This study proposes to increase the energy-saving effects by reducing excessive intensity of radiation of artificial lighting through analyzing daylight incident. A photosensor sends amounts of detected luminous flux to digital control unit(DCU) as a signal and then, it can decide dimming ratios, received a proper dimming signal from DCU. Generally it is effective to control artificial lighting with the different control ratio of each zone by setting a photosensor as same number and rows as artificial lighting. However, it is ineffective to do in initial costs of systems aspect in offices. As a result of grasping the distribution of daylight previously and analyzing daylight and dimming data, we can dim different dimming ratios to each zone of artificial lighting by a single photosensor.
Keywords
Energy Saving; Daylight; Photosensor; Dimming Ratio;
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