[TRNSYS-users] Theoretical flat-plate collector

[Stefania Agosta]

Hallo,

I'm using Type 73 to model a flat plate solar cllector for domestic  
hot water. What mostly surprise me is that the efficiency of the  
panel, which is calculated as (useful energy) / (incident solar  
radiation),  is lower than expected (30%-40% as a maximum, instead of  
80%-90%) even if I maximise all the parametres that affect the  
efficiency. is it a common

Best regards

Stefania Agosta
student at the University of Trento