[TRNSYS-users] Solar zenith angle compared to the angle of incidence on south

["HUCHEDE, Romain" <romain.huchede@quille.fr>]

Title: About Ntypes 50 and 51 (Uwin and SHGC)

 

Hi all,

 

I just plotted the "solar zenith angle" and the "angle of incidence" on south, given by type 109. I thought they would be at least equals at midday but I noticed a variable difference throughout a year period.

 

Can someone explain the difference betwenn these two angles ?

 

Best regards.

 

 

 

Romain Huchedé 

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