[Bldg-sim] Correction Factor in Radiance

[Guglielmetti, Robert]

Uh, what? Not sure what you are asking for here. You can calculate daylight factors in Radiance (for what they are worth), daylight coefficients, and all kinds of metrics. "Window cleanness" can be approximated by applying a factor the the transmissivity of the glazing, which is what Radiance expects as input. Glazing properties such as transmittance, reflectance, color and now even BSDFs can be derived from the Window6 program from LBNL.


Rob Guglielmetti  IESNA, LEED AP
Commercial Buildings Research Group
National Renewable Energy Laboratory
1617 Cole Blvd MS:RSF202
Golden, CO 80401
T. 303.275.4319
F. 303.630.2055
E. robert.guglielmetti at nrel.gov


On 11/11/11 5:31 AM, "Sowgol KHOSHROONEJAD" <Sowgol.KHOSHROONEJAD at cc.emu.edu.tr<mailto:Sowgol.KHOSHROONEJAD at cc.emu.edu.tr>> wrote:


 Hello everyone. Could you please tell me if there is any crude valu in Radiance, similar to other daylight prediction or simulation methods like daylight  factor correction values such as window cleanness or glass light absorbance?
Thanks alot.