Coupled evaluation of the optical-thermal-electrical performance of customized building-integrated photovoltaic components

Wenhao Zhang, Yimin Sun and Zhenghao Lin

Renewable Energy, 2024, vol. 223, issue C

Abstract: The diverse requirements of contemporary buildings for advanced skin systems regarding aesthetics, comfort and energy performance have led to the demand for customized BIPV components. By integrating the spectral transmittance-reflectance and volt-ampere experiments with the energy balance calculation approach, the paper reveals the impacts and mechanisms of five key design parameters on the “optical-thermal-electrical” properties of BIPV components. Geometric transparency degree (GTD) affects the optical properties most significantly, followed by glass and low-E coating types. The cell arrangement and cell-cutting technique affect the least. However, the full-series connection of divided cells can slightly improve the photovoltaic conversion efficiency. Pmaxvnegatively correlates with GTD linearly, while SHGC and VT positively. By applying a hollow layer (85%Ar) and double silver Lowe-ε = 0.04, the heat gain of the cell to the interior can be reduced to 45.3% and 25.1%, respectively. After discussing the recommended BIPV configurations under different climate zones and WWR requirements, we found that, for instance, a hollow-layer BIPV with a GTD lower than 46.0% can replace the traditional double-silver curtain wall in hot, humid climates, while laminated BIPV can only be applied in non-climatic boundaries. A more comprehensive reference value of “optical-thermal-electrical” properties for calculating building energy consumption is provided.

Keywords: Building-integrated photovoltaic; Optical-thermal-electrical performance; Solar heat gain coefficient; Customized photovoltaic glazing; Power generation; Energy-saving (search for similar items in EconPapers)
Date: 2024
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:223:y:2024:i:c:s0960148124000594

DOI: 10.1016/j.renene.2024.119994

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