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Evaluation of Thermal and Visual Environment for the Glazing and Shading Device in an Office Building with Installed of Venetian Blind
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  • Journal title : KIEAE Journal
  • Volume 15, Issue 6,  2015, pp.101-109
  • Publisher : Korea Institute of Ecological Architecture and Environment
  • DOI : 10.12813/kieae.2015.15.6.101
 Title & Authors
Evaluation of Thermal and Visual Environment for the Glazing and Shading Device in an Office Building with Installed of Venetian Blind
Kim, Chul-Ho; Kim, Kang-Soo;
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Purpose: Glazing and shading devices influence a lot on the thermal and visual environment in office buildings. Solar heat and daylight are contrary concept, therefore proper arrangement of thermal and optical performance is needed when designing a glazing and shading devices. The purpose of this study is to examine the conditions of the glazing and shading devices available for promoting the reduction of cooling loads + lighting loads and the improvement in thermal comfort and visual comfort for the summer season in an office building installed with venetian blind. Method: This study established 12 simulation cases which have different glazings and the positions of venetian blind for evaluating different thermal and optical performance. And by using EnergyPlus v8.1 and Window v7.2 program, we quantitatively analyzed cooling loads + lighting loads, thermal comfort and visual comfort in an office building installed with the glazing and shading devices. Result: Consequently, Case 9(Double Low-E+Exterior Blind) is the best arrangement of solar heat gain and daylight influx, thereby becomes the most excellent case of reducing cooling+lighting loads(46.8%) and simultaneously becomes the enhancement case in thermal comfort. Also, DGI(Daylight glare index) under clear sky conditions in summer was evaluated to be 19.6, and thereby satisfied the recommendation level of allowing visual comfort.
Glazings;Venetian Blind;Thermal Comfort;Visual Comfort;Cooling Loads;Lighting Loads;
 Cited by
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이소연, 김강수, "주거건물용 이중외피 시스템의 블라인드 조절에 따른 에너지 성능평가에 관한 연구", 한국태양에너지학회, Vol.30 No.6, 2010.12 // (Lee, So-Yeun, Kang, Jae-Sik, Kim, Kang-Soo, Energy performance evaluation of a double-skin facade with a venetian blind in residential buildings, Journal of the Korean Solar Energy Society, 2010.12)

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