Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on Change in Window Transmitted Solar and the Resultant Wall Surface Convective Heat Gain with Regard to Slat Reflectance of External and Internal Blinds

실내·외 블라인드의 Slat 반사율에 따라 창호 일사투과량 및 그에 따른 벽체 대류열획득량 분석

  • Hyun, In-Tak (Department of Architectural Eng., Graduate School, Hanbat National University) ;
  • Lee, Jae-Ho (Department of Architectural Eng., Graduate School, Hanbat National University) ;
  • Yoon, Yeo-Beom (Department of Architectural Eng., Graduate School, Hanbat National University) ;
  • Lee, Kwang Ho (Department of Architectural Eng., Hanbat National University)
  • 현인탁 (국립한밭대학교 대학원 건축공학과) ;
  • 이재호 (국립한밭대학교 대학원 건축공학과) ;
  • 윤여범 (국립한밭대학교 대학원 건축공학과) ;
  • 이광호 (국립한밭대학교 건축공학과)
  • Received : 2014.07.28
  • Accepted : 2014.09.29
  • Published : 2014.12.10
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Abstract

Nowadays, to make buildings light weight and aesthetically pleasing, curtain wall structure are commonly used. Therefore, window to wall ratio is increasing, which has caused cooling and heating load in crease in buildings as well. This phenomenon has negative impact from energy point of view. This paper analyzes window and wall convective heat gain when the slat reflectance of external and internal blinds are changed for the better understanding of the fundamentals behind the phenomena. It was observed that, if slat reflectance is increased, window transmitted solar increases and convection heat rate is clearly affected. Among six surfaces including four walls, ceiling and floor, maximum convection heat rate occurs on the south wall in summer. On the other hand, ceiling and floor showed the lowest convection heat gain, since they are shared by adjacent floors.

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References

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