Comparison between Dynamic and Static Metrics for Daylight Evaluation in the Case of Obstructed Buildings

conference paper

English

Daylight in buildings can be evaluated using dynamic and static daylight metrics. The daylight factor is a static daylight metric which evaluates daylight conditions under the overcast sky model according to the International Commission on Illumination. However, the dynamic daylight metrics (e.g. daylight autonomy, spatial daylight autonomy, useful daylight illuminance) can be more complex evaluation criteria because they are based on annual daylight illuminance data for a building site. While the daylight factor value depends only on a room geometry, optical properties of surfaces and positioning of daylight obstructions, the dynamic daylight metrics also include an effect of a building location, window orientation or building occupancy pattern. The article deals with a comparison of a daylight evaluation using dynamic and static daylight metrics in the case of buildings whose daylight is obstructed by external barriers.

Daylighting, Dynamic Daylight Performance Metrics, Static Daylight Performance Metrics, Useful Daylight Illuminance, UDI, Daylight Factor, Daysim, Climate-Based Daylight Modelling

GÁBROVÁ, L.

5. 12. 2016

Trans Tech Publications

Switzerland

978-3-0357-1070-0

Buildings and Environment - Energy Performance, Smart Materials and Buildings

861

1660-9336

Applied Mechanics and Materials

861

2016

Swiss Confederation

477

484

8