Nomenclature
c specific heat capacity [J/(kg·K)] I specific solar irradiation [W/m2] m mass flow [kg/s] Q2D performance of hybrid panel in 2D model [W/m] Q performance of hybrid panel [W] q densitiy of heat flux [W/m2] t temperature [°C] w wind velocity [m/s] TACC thermal activation of concrete ceiling
Subscripts
e external m heat transfer medium in panel in enters out leaving 2D two dimensional