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Sistema AgriPV com módulos bifaciais
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Resumo(s)
A procura mundial por energia tem vindo a aumentar gradualmente nos últimos anos, e prevêse que esta tendência, impulsionada pelo crescimento populacional e pela melhoria da qualidade de vida
nos países em desenvolvimento, se mantenha num futuro próximo. Para suprir as necessidades
energéticas e, ao mesmo tempo, mitigar as alterações climáticas, tem-se incentivado cada vez mais a
produção de eletricidade a partir de fontes renováveis, com destaque para a tecnologia fotovoltaica.
Contudo, à instalação desta tecnologia, está associada, frequentemente, a necessidade de grandes áreas
de terreno que poderiam ser utilizadas para outros fins, como a agricultura. Este conflito torna-se ainda
mais relevante face ao crescimento contínuo da procura por alimentos. Em resposta a este problema,
surgiram os sistemas agrivoltaicos (agriPV), que permitem a utilização simultânea dos terrenos para a
produção agrícola e para a produção de eletricidade através dos módulos fotovoltaicos.
A presente dissertação teve como objetivo principal estudar o potencial solar de um sistema
agriPV composto por módulos monofaciais e bifaciais. O estudo incluiu, em primeiro lugar, a
comparação do desempenho entre os dois tipos de módulos e, em seguida, a estimativa da contribuição
da face traseira para a produção dos módulos bifaciais. Adicionalmente, foi estimado o albedo da
superfície e analisados os valores de radiação incidente na face traseira dos módulos bifaciais.
Os resultados indicaram que os módulos bifaciais apresentaram um melhor desempenho por
unidade de área e por unidade de potência. Verificou-se ainda que a radiação incidente sobre a face
traseira dos módulos não é uniforme, o que influencia o potencial de produção dos diferentes módulos.
Além disso, os valores do albedo e da contribuição da face traseira estiveram dentro do esperado, no
entanto não foram conclusivos devido às limitações temporais das medições realizadas. Estes resultados
foram apresentados na 41ª Conferência Europeia de Especialistas em Tecnologia Fotovoltaica.
The global demand for energy has been gradually increasing in recent years, and it is expected that this trend, driven by population growth and improved quality of life in developing countries, will continue in the near future. To meet energy needs while mitigating climate change, the production of electricity from renewable sources has been increasingly encouraged, with photovoltaic technology being one of the most promising. However, the installation of this technology is often associated with the need for large areas of land that could otherwise be used for other purposes, such as agriculture. This conflict becomes even more significant considering the continuous growth in food demand. In response to this problem, agrivoltaics systems (agriPV) have emerged, allowing for the simultaneous use of land for both agricultural production and electricity generation through photovoltaic modules. The main objective of this dissertation was to study the solar potential of an agriPV system composed of monofacial and bifacial modules. The study first included a comparison between the two types of modules, followed by an estimation of the contribution of the rear side to the production of the bifacial modules. Additionally, the surface albedo was estimated, and the radiation values incident on the rear side of the bifacial modules were analysed. The results indicated that the bifacial modules showed better performance per unit area and per unit power. It was also observed that the radiation incident on the rear side of the modules is not uniform, which influences the production potential of the different modules. Furthermore, the albedo values and the contribution of the rear side were within expectations, however, they were not conclusive due to the temporal limitations of the measurements taken. These results were presented at the 41st European Photovoltaic Solar Energy Conference and Exhibition.
The global demand for energy has been gradually increasing in recent years, and it is expected that this trend, driven by population growth and improved quality of life in developing countries, will continue in the near future. To meet energy needs while mitigating climate change, the production of electricity from renewable sources has been increasingly encouraged, with photovoltaic technology being one of the most promising. However, the installation of this technology is often associated with the need for large areas of land that could otherwise be used for other purposes, such as agriculture. This conflict becomes even more significant considering the continuous growth in food demand. In response to this problem, agrivoltaics systems (agriPV) have emerged, allowing for the simultaneous use of land for both agricultural production and electricity generation through photovoltaic modules. The main objective of this dissertation was to study the solar potential of an agriPV system composed of monofacial and bifacial modules. The study first included a comparison between the two types of modules, followed by an estimation of the contribution of the rear side to the production of the bifacial modules. Additionally, the surface albedo was estimated, and the radiation values incident on the rear side of the bifacial modules were analysed. The results indicated that the bifacial modules showed better performance per unit area and per unit power. It was also observed that the radiation incident on the rear side of the modules is not uniform, which influences the production potential of the different modules. Furthermore, the albedo values and the contribution of the rear side were within expectations, however, they were not conclusive due to the temporal limitations of the measurements taken. These results were presented at the 41st European Photovoltaic Solar Energy Conference and Exhibition.
Descrição
Tese de mestrado, Engenharia da Energia e Ambiente, 2024, Universidade de Lisboa, Faculdade de Ciências
Palavras-chave
Sistema AgriPV Módulos bifaciais Potencial solar Albedo Teses de mestrado - 2024