Abstract
This paper presents a simple building simulation tool for integrated daylight and thermal analysis. The tool is
capable of importing the thermal and visual properties for different glazings and shading positions from the
Window Information System (WIS) program. Radiosity methodology is used to derive the daylight levels for
different sky conditions on an hourly basis. The daylight levels are fed into an existing simple thermal simulation
program capable of calculating energy demand and the indoor environment. Straightforward control systems for
general and task lighting systems have been implemented together with a shading control strategy that adjusts
the shading according to the indoor operative temperature and the profile angle of the sun. The implemented
daylight calculation method allows for shades from the window recess and overhang. Comparisons with the raytracing
program Radiance show that the accuracy of this approach is adequate for predicting the energy implications
of photoresponsive lighting control.
Original language | English |
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Title of host publication | Proceedings of the 8th Symposium on Building Physics in the Nordic Countries |
Number of pages | 1436 |
Volume | 1 |
Place of Publication | Copenhagen |
Publisher | Danish Society of Engineers, IDA |
Publication date | 2008 |
Pages | 119-126 |
ISBN (Print) | 978-87-7877-265-7 |
Publication status | Published - 2008 |
Event | Nordic Sumposium on Building Physics - Copenhagen Duration: 1 Jan 2008 → … Conference number: 8th |
Conference
Conference | Nordic Sumposium on Building Physics |
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Number | 8th |
City | Copenhagen |
Period | 01/01/2008 → … |
Keywords
- radiosity
- building design
- daylight