I am currently investigating the temperature changes in a south-facing glass façade. I would like to compare my WUFI results with those from another program in order to verify whether my input data is reasonably correct and if the model is behaving as expected.
The problem is that when defining a user-defined climate condition, I can only specify temperature and relative humidity. I would also like to apply a constant solar radiation of 900 W/m² to match the input used in the other calculation software.
To do this, I created a climate file where the temperature, RH, solar radiation, and wind speed are identical for every day:
However, even with this setup, I still see a large variation in the façade surface temperature. Is this because the solar elevation changes throughout the year?
This is what my climate file looks like for all hours:
Temperature [°C] Air Humidity Radiation [W/m²] Radiation [W/m²] Air Pressure [hPa] Wind Speed [m/s]
Air Temperature Rel. Humidity [0..1] Solar Global Horiz. Solar Diffuse Horiz. At Station Height Vector Average
27 0.8 900 900 1011 0.2
How do you recommend I validate whether the construction setup is reasonable, and how can I best compare the results with a steady-state calculation program with 27°C outdoor temperature and 900 W/m² solar radiation?
Im using WUFI 2D for information!
Thank you in advance!
Best regards Agnes
