[Radiance-general] December Illuminance values.

[G V DEEPAK]

Hello Everyone,

I am involved in simulation on venetian blinds (using mkillum for 
-ab 1). We are performing comparison for two sets of blinds, one 
is the normal conventional horizontal blinds and the other one is 
the split blinds in which the the blinds system is split into 
three equal parts. when measuring illuminance values for year long 
simulations . I observe that we get large errors in values in 
December  varying from 10% to 60% ( difference in values between 
conventional and split blinds though they are at the same angle 
and same geometry) I observe these disturbances only in the month 
of December and at the sensor point closest to the window. Is this 
kind of error normal..?

Thank you

G V Deepak
Gainesville, Florida