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Publicação
Paradigmas Avançados em Aproveitamentos Fotovoltaicos
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Orientador(es)
Resumo(s)
Atualmente, as energias renováveis têm vindo a aumentar cada vez mais a sua participação na
capacidade instalada de Portugal, sendo a energia solar uma das mais promissoras tecnologias.
A aposta nesta tecnologia advém maioritariamente da redução nos seus custos que se tem vindo
a observar e aos incentivos de utilização de energias verdes dados pelo Governo.
Esta dissertação tem como objetivo analisar dois tipos de instalações fotovoltaicas que ainda
não são muito utilizadas (não convencionais), sendo estas: as instalações fotovoltaicas
flutuantes, também conhecidas por FPV e as instalações integradas em edifícios, conhecidas
por BIPV.
Na instalação flutuante, foi estudado a influência que as entradas de ar e a distância entre o
painel e a superfície da água podem ter tanto na temperatura das células fotovoltaicas como na
sua produção. Para isso foram instalados dois painéis fotovoltaicos em dois flutuadores a
diferentes alturas e com diferentes entradas de ar. Um dos flutuantes instalados tinha uma
entrada de ar enquanto outro tinha duas. Numa fase posterior uma das entradas de ar do painel
com duas entradas foi fechada para os dois painéis terem o mesmo número de entradas de ar.
Relativamente à instalação BIPV, foi avaliado o desempenho de um painel monocristalino de
filme fino flexível em diferentes formatos (plano, côncavo e convexo). Esta instalação foi montada
num simulador solar, que permitiu uma variação de radiação consoante o número de holofotes
ligados.
Currently, renewable energy has been increasing its contribution to the Portuguese installed capacity mix, with solar energy being one of the most promising technologies. The investment in this technology comes mainly from the reduction in its costs and the incentives for the use of green energy putted in place by the Government. This dissertation aims to analyse two types of photovoltaic installations that are still not widely used (unconventional), namely: floating photovoltaic installations, also known as FPV, and integrated installations in buildings, known as BIPV. For the floating installation, it was studied the influence of air intakes and how the distance between the panel and the water surface can have both on the temperature of the photovoltaic cells and on their production. Therefore, two photovoltaic panels were installed on two floats at different heights and with different air intakes. One of the installed floats had an air intake while the other one had two. At a later stage, the air inlets of the two inlets panel was closed so that the two panels had the same number of air inlets. Regarding the BIPV installation, it was assed how the performance of a flexible thin film monocrystalline panel is affected by different formats (flat, concave and convex). This installation was mounted on a solar simulator, which led to a variation of the radiation depending on the number of spotlights turned on.
Currently, renewable energy has been increasing its contribution to the Portuguese installed capacity mix, with solar energy being one of the most promising technologies. The investment in this technology comes mainly from the reduction in its costs and the incentives for the use of green energy putted in place by the Government. This dissertation aims to analyse two types of photovoltaic installations that are still not widely used (unconventional), namely: floating photovoltaic installations, also known as FPV, and integrated installations in buildings, known as BIPV. For the floating installation, it was studied the influence of air intakes and how the distance between the panel and the water surface can have both on the temperature of the photovoltaic cells and on their production. Therefore, two photovoltaic panels were installed on two floats at different heights and with different air intakes. One of the installed floats had an air intake while the other one had two. At a later stage, the air inlets of the two inlets panel was closed so that the two panels had the same number of air inlets. Regarding the BIPV installation, it was assed how the performance of a flexible thin film monocrystalline panel is affected by different formats (flat, concave and convex). This installation was mounted on a solar simulator, which led to a variation of the radiation depending on the number of spotlights turned on.
Descrição
Palavras-chave
instalações fotovoltaicas flutuantes instalações integradas em edifícios BIPV FPV Painel fotovoltaico