Dynamic energy evaluation and glazing layers optimization of façade building with innovative integration of PV modules

The buildings sector requires more than 40% from the total energy consumptionin Europe. In order toobtain the European energetic goals of decreasing the fossil fuel dependency by 2020 and beyond to2050, new and efficient strategies concerning renewable energy should be integrated in buildings. Inthis study a comparative dynamic numerical analysis of the cooling energy performance of a fac¸ adebuilding integrated with semitransparent PV cells inside the fac¸ ade cavity is presented. The comparisonincluded three main items, fac¸ ade cavity ventilation system, fac¸ ade inner layer glazed composition andthree different climatic conditions. An Optimization between hybrid and natural ventilation system forthe cavity is clarified. Putting forward an innovative idea to cool the cavity from indoor air to increasethe conversion efficiency of PV modules installed inside the cavity. The energy analysis has been carriedout by TRNSYS and the validation of the numerical model has been elucidated.