Hi Mihail,
-
You can use Honeybee to model radiation with Radiance. There you can define the materials for every surface and it will calculate the reflections.
-
If you are looking to get hourly values for all hours of the year then you need to run an annual analysis. Use DSParameters component to change the study to radiation rather than illuminance. The rest is very similar to annual daylight analysis.
If you haven’t done any daylight simulation with Honeybee before there are couple of example files here: (https://app.box.com/s/znns0dtewd1tclicx74q) and here is a full workshop (https://www.youtube.com/playlist?list=PLkjfDmSc5OryXkWSt57ltJFU4qXD…).
Mostapha