Schem of ligthpipes
Efficiency of specular and diffused lightpipes
Some interesting studies investigate that there is a perfect relationship between hight, width and length. For specular lightpipes the relationshop is Height vs. Width smaller then 15 and for difuse pipes it is Height vs. Width smaller then 2,5. The relationship between width and length is simple, Length is Width. So squared lightpipes are the most efficient. The article only goed about sqaured lightpipes, so I concentrate me only at squared pipes. DIALux can't calculate cilindrical pipes, so it is not a part of my research.
Tonight I post a new message after the meeting with Hester
1 comment:
Since you have these relatively simple relationships between the pipes' height, width (&length) and reflectivity, you might also try making some diagrammatic and spreadsheet-based studies to get a feeling for how the system works. You could use such studies to guide your modeling in Dialux, and/or to quickly compare results of changing a parameter such as W or r. (It's not so easy for H, since if the heights of the pipes and rooms are linked, the effect of the room height on distribution of light also becomes a factor.)
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