Implementing indirect solar radiation into toniatuh

[lukas.fel...@gmail.com]

Hello everybody,

Im just starting to work on my master thesis and i have already run into a big problem.
As far as my research goes toniatuh is -until now- only used for simulating direct normal irradiance for concentrating systems.
In my thesis i try to use the program for a non-concentrating sytem in order to optimize its performance. So also the diffuse radiation becomes important.

My problem is now:
Is it possible to simulate the diffuse irradiance in toniatuh?
Normally this is done by simulating a matrix of light sources on the firmament.
In toniatuh its seems impossible to implement other light sources than the sun itself...

If anybody could point me to a solution of this, i would greatly appreciate it.

Cheers,
Lukas