Hi everyone,
I have some questions about the information we can find in the "WinID-Pool" tab. I don't need to go much in details, but just to have some basic information.
I want to compare a TRNSYS vs a CFD model of a building, and I'd like to use the same properties for my windows in both models. In my CFD calculation, my windows will be a simple 2D surface, for which I'll define absorptivity, transmissivity for visible and IR.
So, I chose a window in TRNSYS, and I see the summary in the "WinID-Pool" tab. I see that "T-vis" is the visible transmittance, while "T-sol" is the solar transmittance.
- Are these values for the whole window ? (ie glass+gas+glass) (U-value, g-value, etc..) ?
- Is the spectral fraction of visible and IR taken as 0.5 in TRNSYS ? i.e. can I conclude from these values that IR transmittance would be (Tsol - Tvis)/0.5 ?
- What does "Rf-sol" stands for ?
- I'll also have to define values for diffuse radiation, is it equivalent to the value in the "Hemis" column that we can see in the "WinID-type" box ?
Thank you,
Arnaud.