[Radiance-general] Re: Re: Radiance simulations maintain 200 lux minimum

[Georg Mischler]

Caroline Prochazka wrote:

> As my primary use of Desktop Radiance centres on the
> changes in daylighting in a building as the glazing
> type changes, should I expect to need a different -av
> setting for each variation of the design?

As a principle, yes. Each variation will result in a
different "general illumination level", which is what
-av more or less represents.


> What is
> likely to be the greatest factor in setting my -av
> number - does it sound reasonable that for the same
> buidling geometry, I will probably find the same -av
> setting works throughout all glazing variations? Or
> will it be the date/time/location setting which is the
> biggest player? or something else?

If the primary variable is the transmittance of the
glazing, then you can probably just scale -av linearly
with that. If there are other modifications involved,
you might still need to start experimenting from there.


-schorsch

-- 
Georg Mischler  --  simulations developer  --  schorsch at schorsch com
+schorsch.com+  --  lighting design tools  --  http://www.schorsch.com/