DTArrGl Calculation

[JillStirling]

Hello, I have a question about the DTArrGl parameter. On the help page it says it is DTArr weighted by the "effective" global irradiation which I have assumed to be GlobEff.  I'm having trouble understanding how this is calculated though. To my understanding, being weighted by something means that GlobEff should be multiplied by DTArr but this doesn't appear to be the case. Any support would be helpful

Edited 14 hours ago by JillStirling

[Auriane Canesse]

You are correct, DTArrGl is weighted using GlobEff but it is computed as follows:
DTArrGl = (T_Array - T_Amb) / GlobEff

Note that it is only calculated for GlobEff > 7W/m2 and set to 0 otherwise as it becomes insignificant for very low irradiances.