Bucher, Christof; Bohren, Andreas; Hess, Donat; El Hassani, Sara; Hügi, Matthias (22 September 2023). Two-Dimensional Representation of the Bidirectional Reflectance Distribution Function of Photovoltaic Modules In: 40th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC). Faculty of Sciences of the University of Lisbon. 18.-22. September 2023.
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2023_09 EUPVSEC 3CO.10.1 BRDF Glare.pdf - Published Version Available under License Publisher holds Copyright. Download (2MB) | Preview |
The optical reflectance properties of PV modules can be described using the bidirectional reflectance distribution function (BRDF). In this paper, a simplified two-dimensional approach to represent the BRDF is proposed. The shape of the solar reflectance image on the PV module is described by comparing a mathematical model and two measurement approaches. For standard PV modules using anti-reflective solar glass, the shape of the solar reflection image is regular and typically elliptical and depends on the angle of solar incidence α. The elliptical shape is described using a diagram for each horizontal and vertical axis based on the constant luminance zone. The dimensions of the axes are approximated using an empirical mathematical function. The result can be used to include glare information in the data sheet of a PV module and to correctly implement the phenomenon of beam spread in tools for glare hazard analysis.
Item Type: |
Conference or Workshop Item (Paper) |
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Division/Institute: |
School of Engineering and Computer Science > Institute for Energy and Mobility Research IEM School of Engineering and Computer Science > Institute for Energy and Mobility Research IEM > IEM / Photovoltaic systems School of Engineering and Computer Science |
Name: |
Bucher, Christof 0000-0001-7092-0804; Bohren, Andreas; Hess, Donat; El Hassani, Sara and Hügi, Matthias |
Subjects: |
Q Science > QA Mathematics Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TR Photography |
Funders: |
[UNSPECIFIED] Swiss Federal Office of Energie (SFOE) |
Language: |
English |
Submitter: |
Christof Bucher |
Date Deposited: |
22 Jan 2024 14:26 |
Last Modified: |
22 Jan 2024 14:26 |
Related URLs: |
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ARBOR DOI: |
10.24451/arbor.21127 |
URI: |
https://arbor.bfh.ch/id/eprint/21127 |
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