Quantifying the parameter interaction of photovoltaic double skin façade: A sensitivity analysis based on second-order Morris method

Xingjiang Liu, Haotian Yang, Chao Shen, Lin Lu and Julian Wang

Applied Energy, 2025, vol. 386, issue C, No S0306261925003095

Abstract: The numerous parametric analyses of photovoltaic double skin façades (PV-DSF) have provided valuable insights for its practical design, whereas inconsistent optimal values have been reported, typically attributed to variations in climate conditions. Other studies have also identified the coupling effect between parameters, which introduces potential errors to optimization results. To address such discrepancies in parametric impacts, this paper applies the Morris method to perform both first-order and second-order sensitivity analyses against three categories with ten parameters. A trajectory group with maximum Euclidean distance is adopted to achieve efficient analysis. The first-order sensitivity analysis reveals that solar energy richness, indoor illuminance setting value (Lset), and the etching ratio of semi-transparent photovoltaic modules (ϑSTPV) exert the strongest individual impacts, with the complexity of ϑSTPV and cavity depth (Dcav) remarkably outperforms others. The second-order sensitivity analysis further shows that the most significant coupling effect occurs between Lset and other daylighting-related parameters, followed by interactions between key PV-DSF design parameters (such as ϑSTPV and Dcav) and outdoor air temperature. Consequently, it is recommended that researchers avoid relying on single-parameter optimization results without verification, and instead apply intelligent optimization methods and machine learning technology for multi-parameter analysis, considering local climate conditions and illuminance requirements.

Keywords: Photovoltaic double skin façade; Building energy simulation; Sensitivity analysis; Morris method; Coupling effect (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1016/j.apenergy.2025.125579

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