벽 일체형 채광장치의 성능평가 연구

Abstract

Recently, various daylighting systems have been developed and applied to buildings However, existing daylightmg systems are of no practical use due to a high initial cost and difficulties in maintenance In addition, there is a mam problem of securing sufficient additional space for collecting daylight and to be available in the overcast sky A waU-integrated daylighting system, which is the subject of this study and doesn't need additional space for collecting daylight, is a very useful daylightsng system, because it can substitute for a vertical wall of a budding The purpose of this study was to evaluate the davlightmg performance of the wall—integrated daylightmg system using two mock-up models The performance of the general windows were compared with that of the wall-integrated daylighting system placed on the windows in terms of illuminance distribution on the work plane at the height of 75cm and luminance distribution on the south wall Also The purpose of this study is to find methods to minimize glare problems of a newly developed wall-integrated daylightmg system A total of six glare reduction methods were comparatively tested through measurements with physical scale models The six glare reduction methods included light-guiding ceiling, planer light shelf, parabolic light shelf, horizontal louvers, vertical louvers and prismatic panel, all of which were attached to the wall-integrated daylightmg system The measurements were conducted under direct sunlit conditions for the winter solstice, summer solstice and the equinox