Abstract
This paper investigates the impact of well geometry and surface reflectance on vertical daylight levels in atria with square forms under a CIE standard
overcast sky. By reviewing some previous investigations and comparing with scale model measurements the vertical daylight factor calculated using Radiance are validated. More simulated vertical daylight factors for a very wide range of
atrium geometries and reflectances are given. From the results the attenuation and distribution of the vertical daylight levels on the wall of a square atrium
with different reflectances are displayed. Also, the comparisons between simulations and two analytical theories have been performed. Finally some conclusions for supporting daylight design in atria are presented.
overcast sky. By reviewing some previous investigations and comparing with scale model measurements the vertical daylight factor calculated using Radiance are validated. More simulated vertical daylight factors for a very wide range of
atrium geometries and reflectances are given. From the results the attenuation and distribution of the vertical daylight levels on the wall of a square atrium
with different reflectances are displayed. Also, the comparisons between simulations and two analytical theories have been performed. Finally some conclusions for supporting daylight design in atria are presented.
Original language | English |
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Title of host publication | Proceedings of the 11th International Building Performance Simulation Association (IBPSA) Conference (Building Simulation 2009) |
Place of Publication | Strathclyde, U. K. |
Publisher | University of Strathclyde |
Pages | 272-279 |
Publication status | Published - 2009 |
Event | The 11th International Building Performance Simulation Association (IBPSA) Conference, 2009 - Glasgow, UK United Kingdom Duration: 27 Jul 2009 → 30 Jul 2009 |
Conference
Conference | The 11th International Building Performance Simulation Association (IBPSA) Conference, 2009 |
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Country/Territory | UK United Kingdom |
City | Glasgow |
Period | 27/07/09 → 30/07/09 |
Keywords
- atrium
- vertical daylight level
- theoretical analysis
- validation
- radiance simulation