KIEAE Journal

  • 제17권3호
  • /
  • Pages.91-97
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  • 2017
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  • 2288-968X(pISSN)
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  • 2288-9698(eISSN)
한국생태환경건축학회 (Korea Institute of Ecological Architecture and Environment)
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확산필름 부착 위치에 따른 광선반 성능개선 연구

Research of the Performance Improvement of a Light Shelf Depending on the Diffusion Film Installation Position

  • Park, Eunsu (Dept. of Architectural Design, Graduate School of Techno Design, Kookmin Univ.) ;
  • Lee, Heangwoo (Dept. of Architectural Design, Graduate School of Techno Design, Kookmin Univ.) ;
  • Song, Seonkjae (Dept. of Architectural Design, Graduate School of Techno Design, Kookmin Univ.) ;
  • Kim, Yongseong (Dept. of Architectural Design, Graduate School of Techno Design, Kookmin Univ.)
  • 투고 : 2017.05.01
  • 심사 : 2017.06.03
  • 발행 : 2017.06.30
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초록

Purpose: Various studies on a light shelf are in progress, but it has the problem of glare occurrence. The present study suggested a diffusion film as the method for resolving the glare problem, and aimed to establish light shelf-related basic data by conducting the performance evaluation of a light shelf depending on the installation position of the diffusion film. Method: To carry out the light shelf performance evaluation depending on the diffusion film installation position, three cases were established: no diffusion film installation (Case 1), diffusion film installation on the reflector (Case 2), and diffusion film installation on the upper glass surface of the window for light shelf installation (Case 3); and the energy reduction performance, luminance, and luminance contrast were analyzed based on a testbed. Result: The conclusions of this study are as follows. 1) When the diffusion film was applied, the amount of light introduced through the light shelf decreased, and the average indoor illumination decreased accordingly. 2) For Case 3, the lighting energy reduction performance was identical to the lighting energy reduction efficiency of the existing light shelf; and for Case 2, it was found to be inappropriate as the lighting energy consumption increased compared to that of the existing light shelf. 3) The analysis of the glare for the cases established in this study showed that the luminance contrast was low for Case 3, and thus the glare problem could be minimized. 4) The specific angle of the light shelf could induce the glare problem by increasing the luminance depending on the external condition. 5) Based on the aforementioned contents, the installation position of the diffusion film for improving the lighting performance and glare problem of the light shelf was found to be the upper glass surface of the window for light shelf installation.

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참고문헌

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