I would like to calculate the solar radiation incident on the exterior wall.
Is the “Surface Outside Face Incident Solar Radiation Rate per Area” suitable as output?
hello. I would like to calculate the amount of solar radiation incident on the exterior wall of a building, but the more I calculate, the more strange results I get, so I am asking a question.
I modeled a simple box model and created EPW by changing only GHI, DNI, and DHI. E+ version is 9.4.0
First question is when "Surface Outside Face Incident Solar Radiation Rate per Area" is specified as the output, the calculated timestep does not match the solar radiation.
The another question is that the output value calculated on December 8th appears as very large values, such as 2582 and 1617. The values are the calculated solar radiation for the south and west walls, respectively.
The GHI I entered into EPW is 430, DNI is 725, and DHI is only 323. I can't figure out why I'm getting this result, and the documentation doesn't provide a detailed explanation of the output, so I'm asking for help. Is there a reason that "surface solar radiation" is bigger than the "sum of DNI and DHI"?
Sorry for my short English. Can I share my concerns and get help? blessings to you always
