Optics for smart building-integrated photovoltaic systems
The tendency to integrate photovoltaic or photovoltaic/thermal modules into building envelope is changing due to the utilisation of optical elements for sunlight management. However, the viability of these systems mainly depends on two factors: 1) to offer cost-efficient solutions comparing to tradi...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repositorio: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10459.1/467876 |
| Acceso en línea: | https://doi.org/10.1016/j.renene.2025.122850 https://hdl.handle.net/10459.1/467876 |
| Access Level: | acceso abierto |
| Palabra clave: | Building integration Concentrating photovoltaics Sunlight management Holographic optical elements |
| Sumario: | The tendency to integrate photovoltaic or photovoltaic/thermal modules into building envelope is changing due to the utilisation of optical elements for sunlight management. However, the viability of these systems mainly depends on two factors: 1) to offer cost-efficient solutions comparing to traditional building-integrated photovoltaic or photovoltaic/thermal systems, 2) to create designs, without being extremely difficult to manufacture and operate them on a large scale. In light of the issues mentioned above, this article presents a comparative analysis of the most relevant and recent smart building-integrated designs, including different optics. The designs have been categorised by the type of technology used to manage sunlight, placing emphasis on building-integrated applications. The results show that, in the case of reflective systems, the most usual designs are based on compound-parabolic-concentrators (usually: static; low concentration ratios). On the other hand, there are numerous configurations using total internal reflection to guide rays to photovoltaic cells. There are also hybrid systems (reflective/refractive) and different types of holograms, luminescent systems, etc., offering smart glazing elements and building-integrated solar panels. Key factors such as effective cooling devices and system functionality are discussed. Gaps in the literature on optical elements for building-integrated photovoltaics are identified. Future research directions are proposed. |
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