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http://dx.doi.org/10.5804/LHIJ.2021.12.2.79

Prediction of Reduction Rates of Daylight Illuminance for Blind Conditions in a Small Office  

Gu, Renyan (연세대학교 실내건축학과)
Publication Information
Land and Housing Review / v.12, no.2, 2021 , pp. 79-89 More about this Journal
Abstract
This simulation based study analyzed the horizontal daylight distribution on the floor and ceiling of a small office space based on window orientations and interior window blind positions. South and north facing windows were each tested without window blinds and with window blinds at 45° and 180° (horizontal). The study showed that the illuminance value was highest 1m from the window. On the floor and ceiling, the difference in illuminance value was the greatest and least in December and June, respectively. The indoor illuminance value was highest when there was no window blind and under south-facing conditions. The greatest illuminance difference occurred between window blinds positioned at 45° and 180°. Under north-facing conditions, windows without blinds or with blinds at 45° had the least impact on indoor illuminance with illuminance being more evenly distributed.
Keywords
Daylight Illuminance; Illuminance Distribution Energy Saving; Blind Conditions;
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