[Radiance-general] Annual illuminance simulation anomaly

[John Mardaljevic]

See Chapter 5 here for a comparison of sky models including Perez.

http://www.iesd.dmu.ac.uk/~jm/doku.php?id=resources:thesis

Skip to page 41 in the PDF (numbered 203) to see how Perez compares to  
a simple clear-overcast blend for predictions of *internal*  
illuminance against measured values in a full-size office space.

-John

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Dr. John Mardaljevic
Reader in Daylight Modelling
Institute of Energy and Sustainable Development
De Montfort University
The Gateway
Leicester
LE1 9BH, UK
+44 (0) 116 257 7972
+44 (0) 116 257 7981 (fax)

jm at dmu.ac.uk
http://www.iesd.dmu.ac.uk/~jm