This paper investigates the relationship between vertical daylight levels on well walls and daylight levels on the working plane in adjoining spaces in atria with different geometric shapes and reflectances under a CIE standard overcast sky. By the comparisons with theoretical analysis, the daylight factors of wall and rooms calculated using Radiance are validated. Based on the simulations, the impact of well geometry and reflectances on average daylight factor in room has also been studied. The results indicate a linear trend between vertical daylight level and daylight level of room in atrium buildings. Furthermore, the variations of the daylight levels of rooms in the atrium buildings with different well geometries and surface reflectances are displayed. Some conclusions for supporting daylighting design in adjoining rooms of atria are listed.
|Title of host publication||CIE 2010|
|Subtitle of host publication||Lighting Quality & Energy Efficiency|
|Place of Publication||Vienna, Austria|
|Publisher||CIE Central Bureau|
|Publication status||Published - 2010|
|Event||CIE2010 - Vienna, Austria|
Duration: 14 Mar 2010 → 17 Mar 2010
|Period||14/03/10 → 17/03/10|
- atrium daylighting
- vertical daylight factor
- theory analysis
- radiance simulation
- average daylight factor
Du, J., & Sharples, S. (2010). Atrium daylighting: daylight levels on the wall and daylight levels in the adjoining spaces. In CIE 2010: Lighting Quality & Energy Efficiency (pp. 653-660). CIE Central Bureau.