Optimisation of Dry-Hanging Photovoltaic Curtain Wall Construction for Office Buildings
Five typical cities are selected to simulate the energy consumption of photovoltaic(PV)curtain walls with ventilated and closed cavities in office buildings by applying EnergyPlus energy simulation software,which is designed to optimise the net energy consumption of PV curtain walls for the whole year.With the annual net energy consumption as the target,the orientation of the PV curtain wall and the thickness of the cavity are optimised,and the simulation results are supplemented with the peak weekly cavity temperatures in summer and winter to verify the simulation results.The results show that the ventilated PV curtain wall is beneficial to reduce the summer cold load of the building,and the closed PV curtain wall is beneficial to reduce the winter heat load;the smaller the cavity thickness of the ventilated PV curtain wall in the hot summer and warm winter regions,the better the energy saving effect;the optimal thickness of the cavity in the other regions is 30-50 mm;the energy saving effect of the closed PV curtain wall decreases with the increase of the thickness of the cavity.Frigid,cold,hot summer and warm winter areas PV curtain wall should be set in the south direction,the best direction for other areas is west.
NETL
NSTL
万方数据
