Simulation of the cooling effect of the roof added photovoltaics

In this study, the TRNSYS simulation engine was used to investigate the shading and cooling effect of roof added photovoltaics. The local weather conditions were introduced in the data reader component. The sol air effective temperatures were modeled in the roof –air boundary layer, while a single zone model was used for the heat transfer calculation, both in bared and PV shaded  roof. The simulation was validated by experimental data of a PV installation at the roof of the Department of Environmental & Natural Resources Management.