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Comparing climate based daylight modelling with daylight factor assessment - implications for architects

Tsagrassoulis, Aris, Kontadakis, Antonis and Roetzel, Astrid 2015, Comparing climate based daylight modelling with daylight factor assessment - implications for architects, in ASA2015: Living and learning: research for a better built environment : Proceedings of the 49th International conference of the Architectural Science Association, University of Melbourne, Melbourne, Vic., pp. 1097-1106.

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Title Comparing climate based daylight modelling with daylight factor assessment - implications for architects
Author(s) Tsagrassoulis, Aris
Kontadakis, Antonis
Roetzel, AstridORCID iD for Roetzel, Astrid orcid.org/0000-0003-3243-7744
Conference name Architectural Science Association. International Conference (49th : 2015 : Melbourne, Vic.)
Conference location Melbourne, Vic.
Conference dates 2-4 Dec. 2015
Title of proceedings ASA2015: Living and learning: research for a better built environment : Proceedings of the 49th International conference of the Architectural Science Association
Editor(s) Crawford, R. H.
Stephan, A.
Publication date 2015
Start page 1097
End page 1106
Total pages 10
Publisher University of Melbourne
Place of publication Melbourne, Vic.
Keyword(s) climate based daylight modelling
daylight factor
office
energy demand
Summary This paper investigates two different daylight metrics, the commonly used daylight factor (DF) and the new IES approved climate based daylight modelling method (CBDM) IES LM-83-12 in comparison, with regards to their impact on the overall energy demand for heating, cooling and lighting as well as the optimum resulting window size. The assessment has been performed for a typical cellular office room in the climate of Athens, Greece. Different window to floor areas have been compared and the variations have been tested with and without an external overhang for North and South orientation and with an internal roller blind for the assessment of the Spatial Daylight Autonomy. The daylight factor (DF) assessment gives satisfactory results for almost all configurations. The IES LM-83-12 metric requires two criteria to be met, the Spatial Daylight Autonomy (sDA) and the Annual Sunlight Exposure (ASE). While the requirements for Spatial Daylight Autonomy are met for most configurations, the requirements for the Annual Sunlight Exposure are only met on the North façade.
ISBN 9780992383527
Language eng
Field of Research 120104 Architectural Science and Technology (incl Acoustics, Lighting, Structure and Ecologically Sustainable Design)
Socio Economic Objective 970112 Expanding Knowledge in Built Environment and Design
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2015, University of Melbourne
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080331

Document type: Conference Paper
Collection: School of Architecture and Built Environment
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