Solar Heat Gain in Building Fabric

ladybug-tools
,
1

Hello everyone,
I’m very amateur in Ladybug and Environmental Simulation.

I need to find out how much monthly solar energy irradiation to the building fabric for my campus assignment. The result that i got was too strange, since my location is in the middle east, my simulation produce the result higher in the winter than in the summer where my lecturer guessed it should be the opposite. I utilized “LB Incident Radiation” to produce the result.

I checked the direct radiation and diffuse radiation and i found that the summer had higher value then winter. I’ve been going through this forum and several discussions, but unfortunately, I did not find the solution.

Can anyone help me resolve my situation? I only uploaded the screenshot of my work because it was too messy.

Really appreciate your help.
Thank you

Ask Forum - Heat Gain
Ask Forum - Heat Gain1918×815 237 KB

2

It depends where are you measuring the radiation.
If in roofs the radiation will be higher in summer.
If in facades [especially south ones] the winter radiation will be higher.
-A.

3

It was in the facade and face the south. So is it normal to have higher value for heat gain in winter? or is any aspect from my component need to improve?

Can you guide me how to prove it and explain it to my lecturer?

4

The winter sun is low so it heat the facade “close” to perpendicular getting the most of it.
Summer sun is hitting the facade at sharp angles [from above] so the radiation is less “effective”.
-A.