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Advisor(s)
Abstract(s)
Nos últimos anos a sociedade tem-se focado significativamente no ambiente e nas consequências para o planeta se nada for efetuado relativamente ao aquecimento global. Sendo o sol uma fonte de energia não poluente e inesgotável, a energia solar pode ser apresentada como uma solução a este problema da sociedade, em relação à dependência dos combustíveis fósseis.
As instalações desportivas com piscinas cobertas são caracterizadas por possuírem elevados consumos de energia térmica e elétrica, por forma a proporcionar aos seus utilizadores uma boa qualidade de água, do ar e conforto térmico. Deste modo, estes gastos devem ser minimizados com a aplicação de diversas medidas de redução de consumo energético, bem como de alterações no comportamento dos utilizadores, por forma a reduzir o impacto ambiental proveniente destas instalações.
O presente trabalho final de mestrado, tem como principal objetivo caracterizar o sistema de aquecimento de águas existente na Piscina Municipal do Alvito, na Freguesia de Alcântara, em Lisboa, com a finalidade de elaborar um estudo energético relativamente ao aquecimento de água dos dois tanques presentes nesta instalação como ainda das águas quentes sanitárias. Pretendeu-se efetuar um dimensionamento de um sistema solar térmico que permitiu uma poupança energética anual de 6.219,59€, o dimensionamento de duas bombas de calor, reflectindo-se numa poupança anual de 9.516,70€, como ainda encontrar soluções mais ecológicas e económicas comparativamente ao sistema já existente. Por forma a reduzir as perdas
térmicas por evaporação, sendas estas as mais relevantes representando 61% das perdas totais existentes no interior da nave, foi calculado através da instalação de uma cobertura ao longo do plano de água, uma poupança anual de 8.187,37€.
In recent years, the society has focused significantly on the environment and the consequences for the planet if nothing is done about the global warming. As the sun is a nonpolluting and inexhaustible source of energy, solar energy can be presented as a solution to this problem, in relation to dependence on fossil fuels. Sports facilities with indoor swimming pools are characterized by their high consumption of thermal and electrical energy, in order to provide their users with good water, air quality and thermal comfort. Thus, these consumptions must be minimized with the application of various measures to reduce energy use, as well as changes in the behavior of users, in order to reduce the environmental impact of these facilities. The main objective of this final master's work is to characterize the existing water heating system in the Municipal Pool of Alvito, Alcântara, Lisbon, with the purpose of preparing an energy study regarding the heating of the water in the two tanks present in this installation, as well as hot water. It was intended to carry out a design of a solar thermal system, that allowed an annual energy saving of 6.219,59€, the design of two heat pumps, resulting in an annual savings of 9.516,70€, as well as finding more ecological and economical solutions compared to the existing system. In order to reduce thermal losses by evaporation, which are the most relevant representing 61% of the total losses existing inside the indoor pool, an annual savings of 8.187,37€ was calculated through the installation of a cover along the water surface.
In recent years, the society has focused significantly on the environment and the consequences for the planet if nothing is done about the global warming. As the sun is a nonpolluting and inexhaustible source of energy, solar energy can be presented as a solution to this problem, in relation to dependence on fossil fuels. Sports facilities with indoor swimming pools are characterized by their high consumption of thermal and electrical energy, in order to provide their users with good water, air quality and thermal comfort. Thus, these consumptions must be minimized with the application of various measures to reduce energy use, as well as changes in the behavior of users, in order to reduce the environmental impact of these facilities. The main objective of this final master's work is to characterize the existing water heating system in the Municipal Pool of Alvito, Alcântara, Lisbon, with the purpose of preparing an energy study regarding the heating of the water in the two tanks present in this installation, as well as hot water. It was intended to carry out a design of a solar thermal system, that allowed an annual energy saving of 6.219,59€, the design of two heat pumps, resulting in an annual savings of 9.516,70€, as well as finding more ecological and economical solutions compared to the existing system. In order to reduce thermal losses by evaporation, which are the most relevant representing 61% of the total losses existing inside the indoor pool, an annual savings of 8.187,37€ was calculated through the installation of a cover along the water surface.
Description
Trabalho Final de Mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Keywords
Ambiente Aquecimento global Energia solar Piscinas Solar térmico Bomba de calor Environment Global warming Solar energy Swimming pool Solar thermal Heat pump
Citation
CARVALHO, Jorge Nuno Mota da Silva – Aquecimento de água de uma piscina municipal a partir de um sistema solar-térmico com apoio de bomba de calor. Lisboa: Instituto Superior de Engenharia de Lisboa, 2021. Dissertação de Mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa