A carregar...
Publicação
Estudo de reabilitação da envolvente de um edifício unifamiliar
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 4.58 MB | Adobe PDF |
Autores
Orientador(es)
Resumo(s)
Com o aumento da necessidade de mais habitação em Portugal surge, também, a ne-
cessidade de reabilitar edifícios e não apenas apostar em construção nova. Não só pelo facto
da ocupação urbana ser cada vez mais escassa, como também pelos gastos que pode implicar
comparativamente à reabilitação. Esta procura, aliada à vontade de criar melhores condições
de conforto dentro das habitações, leva a que se estudem quais as melhores soluções para
reabilitar um edifício. Existem várias formas de reabilitação, entre elas a substituição de vãos
envidraçados com melhor comportamento térmico, o acréscimo de isolamento térmico em
toda a envolvente opaca, ou até mesmo a substituição de sistemas de aquecimento de águas
quentes sanitárias por outros mais eficientes e com recurso a energias renováveis.
Nesse sentido, pretendeu-se através desta dissertação fazer uma análise com várias so-
luções construtivas, associadas a um caso de estudo, e perceber qual delas apresentava me-
lhores resultados. Para tal, recorreu-se ao programa
Energyplus, que permite simular tempe-
raturas interiores e ganhos pelos vãos envidraçados, e às folhas de cálculo regulamentares
para calcular as necessidades de aquecimento e arrefecimento. Os resultados obtidos apontam
no sentido de que algumas soluções, principalmente as que comtemplam isolamento térmico
com maior espessura, funcionam bem no período de inverno. Por outro lado, verificou-se que
no período de verão estas mesmas soluções podem penalizar o comportamento térmico do
edifício.
With the increase of necessities of more habitation in Portugal, there is also the need to rehabilitate buildings and not only invest in new construction. Not just because the fact that the urban occupation is more and more scarse, as well as the expenses that may involve com- paratively to rehabilitation. This demand, allied to the will of creation better comfort conditions within homes, leads to studies which are the best solutions for rehabilitating a building. There are some ways to rehabilitate, including the replacement of glazed openings with better ther- mal features, the addition of thermal insulation throughout the opaque zone, or even by changing the water heating system for one with more efficient and using renewable energies. In that perspective, it was intended, through this dissertation, to make an analysis with some constructive solutions, associated with a case study, and understand which of theme reveals better results. For that it was used the EneryPlus program, to simulate interior temper- atures and gains through the windows, and for other side, with the help of the reglementary calculation sheet, we've calculated the necessities of cooling and heating. Some of these results transmitted the idea that some solutions, especially those that include thicker thermal insula- tion, work well in the winter period, but in the summer period could have difficult to comply the regulation.
With the increase of necessities of more habitation in Portugal, there is also the need to rehabilitate buildings and not only invest in new construction. Not just because the fact that the urban occupation is more and more scarse, as well as the expenses that may involve com- paratively to rehabilitation. This demand, allied to the will of creation better comfort conditions within homes, leads to studies which are the best solutions for rehabilitating a building. There are some ways to rehabilitate, including the replacement of glazed openings with better ther- mal features, the addition of thermal insulation throughout the opaque zone, or even by changing the water heating system for one with more efficient and using renewable energies. In that perspective, it was intended, through this dissertation, to make an analysis with some constructive solutions, associated with a case study, and understand which of theme reveals better results. For that it was used the EneryPlus program, to simulate interior temper- atures and gains through the windows, and for other side, with the help of the reglementary calculation sheet, we've calculated the necessities of cooling and heating. Some of these results transmitted the idea that some solutions, especially those that include thicker thermal insula- tion, work well in the winter period, but in the summer period could have difficult to comply the regulation.
Descrição
Palavras-chave
EnergyPlus Reabilitação Necessidades energéticas Vãos envidraçados Conforto térmico