Hello everyone,
i am trying to evaluate the effect of tilt roof angle on solar energy gain of the building. my building has all window on roof. it seems all works well but my results are from increasing roof angle 1 degree from 15 to 30 degree solar gain decrease constantly. but infect it should increase near 25 somewhere and again should decrease. i don't know which mode of solar radiation processor is dependent on angle of the surface... can anybody help me with this..
Regards
Adnan Rasheed
PhD student