Dear Wirich Freppel, I wonder if this question is still open. For an external window the incident total radiation has definitely to be less than the transmitted one and I’m sure that this is the case. According to the results, at day time, so when there is solar radiation, Total tilted surface is below the others.
I have the feeling that an output QSOLTR as a surface output might be helpful in the futur. Kind regards, Marion -----------------------------------------------------------------------------------------------------------------------------------------------------------
Dipl.-Ing. Marion Hiller t:
+49.711.67976.0 f:
+49.711.67976.11 www.transsolar.com/ Amtsgericht Stuttgart - HRB 23347
/ Steuernummer: 99073/00911 / USt-IdNr.: DE 152272639 Von: TRNSYS-users <trnsys-users-bounces@lists.onebuilding.org>
Im Auftrag von Freppel, Wirich via TRNSYS-users Dear TRNsys users, I apologize in advance as this subject was already discussed one year ago, but I think some more explanation could help me to go further in my study. (http://lists.onebuilding.org/pipermail/trnsys-users-onebuilding.org/2018-November/030610.html) I’m trying to calculate the Effective Radiant Field of an occupant, based on TRNsys outputs. To complete the calculation, I need the total diffuse solar radiation entering the airnode through glazing, as well as the total
direct radiation. Not being sure of what output I should choose, I compared :
According to the results, at day time, so when there is solar radiation, Total tilted surface is below the others. So it means, according to what I see, that solar radiation is bigger after going through the window. After
those results, it’s difficult to say I understood well what I am doing… Could you help me to understand those outputs and advise me on the output to choose for “total diffuse solar radiation entering the airnode” and “total direct solar radiation entering the airnode”? Marion mentioned to use “QSOLTR-QTSOUT”. That would be ok for me, but why is QSOLTR bigger than total tilted surface radiation? Again, I’m really sorry for digging out that topic again but I do think my interpretation is very bad at the moment. Thank you in advance for your help. Wirich FREPPEL COSMOS -
Buildings Energy Performance & Daylighting Group
Cell: +33 637 053 174 Saint-Gobain Research Compiègne |