Using Light Pipes in FlucsPro Daylight Threshold Calculations
Unfortunately there is no automatic way to do this in the current software.
For daylight threshold calculations, such as the ones used for LEED NC 2.2 Credit 8.1, only daylight through openings is used, and photometric data is only used in artificial lighting calculations. So, if you do a daylight calculation modelling the light pipes as highly reflective tubular columns with glazed surfaces at each end, you could do LEED NC 2.2 Credit 8.1, but this wouldn't be able to use any imported photometric data for the light pipe. Conversely, if you do an artificial lighting calculation using imported photometric data, this would use the photometric data but the results would not contribute anything to the LEED report. The best you could do at present is this: (For LEED NC 2.2 Credit 8.1, set the grid size to 2', the working plane height to 30 and the threshold to 25 fc as required by LEED). Do an artificial lighting calculation. Note the area above this threshold for every working plane for all occupied rooms in the model. Put these and the room areas into a spreadsheet and use the spreadsheet to calculate compliance (e.g. for LEED NC 2.2 Credit 8.1 you need (A) the total occupied area, (B) total occupied area above threshold, and the percentage (B/A) must exceed 75). Obviously this is a lot of work for a big model, and it would be even harder if you also have windows, so a future version of FlucsPro/FlucsDL may allow light pipes to be included in the daylight calculations instead of artificial.
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