Multi-function partitioned design method for photovoltaic curtain
To address this issue, this study proposed a multi-function partitioned design method for VPV curtain walls aimed at reconciling the competing demand of different functions.
When aiming at the highest RNEH (ω 1 = ω 2 = ω 3 = 0.01, ω 4 = 0.97), the partitioned VPV curtain wall with 20%, 40%, and 90% PV coverages of the daylight, view, and spandrel sections achieved the highest RNEH of 64.7%. However, the corresponding glare index is as high as 29.4%.
As for glare protection, the partitioned VPV curtain wall with 50%, 0%, and 80% coverages of daylight, view, and spandrel sections can reduce glare by 17.9%, compared to the baseline case, as shown in Fig. 17 (c).
Building exterior glass curtain walls serve as the interface between the indoor artificial environment and the outdoor natural environment, fulfilling the essential function of thermal insulation while also playing vital roles in providing daylighting and views .
By increasing the daylight section's PV coverage to 50%, the average DGPs decrease by 11.5%, while increasing the spandrel section's PV coverage to 90%, the DGPs only reduces by 2.5%. The VPV curtain wall with the smallest average DGPs is 18.4%, which has 50%, 40%, and 90% PV coverages of daylight, view, and spandrel sections.
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