| Title |
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 |
| Authors |
현인탁(In-Tak Hyun) ; 이재호(Jae-Ho Lee) ; 윤여범(Yeo-Beom Yoon) ; 이광호(Kwang Ho Lee) |
| DOI |
http://dx.doi.org/10.6110/KJACR.2014.26.12.565 |
| Keywords |
실내 블라인드 ; 실외 블라인드 ; 슬랫 반사율 ; 냉난방 부하 ; 에너지플러스 Internal Blind ; External Blind ; Slat Reflectance ; Cooling and Heating Load ; EnergyPlus |
| 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. |