| Keywords |
Atrium ; Daylight autonomy ; Cooling load ; Daysim ; EnergyPlus |
| Abstract |
This study aims at providing building designers with thermal and daylight performance data in four-sided atria. The annual cooling load and daylight autonomies (DA) for four-sided open-top atria of 36 cases according to atrium shape and canopy system determined by EnergyPlus and Daysim program based on the weather data for Incheon, Korea. When examining the DA2000 according to the well geometries and canopy systems, the DA2000 were lower the sawtooth type than the flat or vault types, relatively. The impact of PAR was increased the sawtooth type than the flat or vault types. The annual electric lighting uses were increased as the geometries and canopy types which the DA values were lower, relatively. And the impact of PAR was increased as PAR decreased of the AR 0.25, while AR 9 and 1 negligibly affected by the PAR. The Considering the DA values and the electric lighting uses, it clearly identified DA performance and the annual electric lighting uses were not relevant. For the same canopy types, the cooling load was decreased as AR decreased. When AR values were the same, cooling load seemed to be higher with the vault type and lower with the sawtooth type, relatively. |