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Auditoria energética ao edifício da Escola Superior de tecnologia do Barreiro/IPS
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| 5.53 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
O crescimento populacional e económico contribui para um grande aumento do
consumo energético a nível global, proporcionando uma procura exaustiva pelo
aumento da eficiência energética, principalmente no parque edificado de serviços,
sendo este atualmente responsável por 13% dos consumos energéticos em Portugal.
O setor energético atravessa um processo de transformação derivado das metas
propostas pela União Europeia, que visam reduzir o consumo de energia e as
emissões de gases poluentes, através da implementação de soluções mais eficientes
e de origem renovável.
O presente projeto pretende evidenciar a auditoria energética realizada ao
edifício da Escola Superior de Tecnologia do Barreiro, com 9413 m2 de área útil de
pavimento, pertencente ao Instituto Politécnico de Setúbal, sustentada pelos requisitos
do sistema de certificação energética atualmente em vigor e um simulador de
desempenho energético de edifícios, o software EnergyPlus, tendo como interface o
DesignBuilder.
Através da simulação dinâmica, estudaram-se cenários distintos de reabilitação
energética, com o intuito de proceder com a avaliação técnico-económica das medidas
de melhoria propostas.
Nos resultados obtidos percebe-se que existem medidas de melhoria com
melhor período de retorno de investimento que outras, no entanto, todas visam reduzir
os consumos de energia, os custos associados e as emissões de gases poluentes no
edifício em estudo.
Através deste projeto, verifica-se que o edifício apresenta um consumo de
energia final de 505 MWh/ano de eletricidade e de 142 MWh/ano de gás natural,
contudo, após a implementação das medidas de melhoria propostas, como a
substituição de iluminação interior existente por iluminação de tipologia LED, a
implementação de uma Unidade de Produção para Autoconsumo, a substituição da
caldeira existente por uma Bomba de Calor e a reabilitação de tubagens do sistema de
aquecimento ambiente, prevê-se um consumo de 151 MWh/ano de eletricidade e um
anulamento total dos consumos de gás do edifício, mantendo o conforto térmico e a
produtividade dos utilizadores nos espaços.
The population growth and economic development, contributes to a large increase in energy consumption at a global scale, resulting in an exhaustive search for increased energy efficiency, especially in services buildings which are currently responsible for 13% of the total energy consumption in Portugal. The energy sector is undergoing a transformation process amid the targets proposed by the European Union, which aim to reduce energy consumption and polluting gases emissions through the implementation of more efficient solutions derived from renewable sources. This dissertation intends to detail the energy audit carried out at Escola Superior de Tecnologia do Barreiro, with 9 413 m2 of floor area, part of the Instituto Politécnico de Setúbal, this study uses as reference the requirements of the energy certification system currently in force and a building energy performance simulator, the Energy Plus software, using Design Builder as its interface. Through dynamic simulation, different energy rehabilitation scenarios are studied with the objective of proceeding with the technical-economic evaluation of the proposed improvement measures. Regarding the obtained results, it is clear that there are improvement measures with a better payback period than others, nevertheless all measures seek to diminish the costs associated with energy consumption and emissions of polluting gases in the studied building. Trough the execution of this project, it was determined that the building is responsible for the final energy consumption of 505 MW/year of electricity and 142 MWh/year of natural gas however, after the implementation of the rehabilitation measures, such as replacing existing lighting with LED solutions, the implementation of a Solar Production Unit for Self-Consumption, the replacement of the existing boiler with a Heat Pump and the rehabilitation of pipes in the heating system, a consumption of 151 MWh/year of electricity is expected and a complete extinction of the building's gas consumption, maintaining the thermal comfort of users in the spaces.
The population growth and economic development, contributes to a large increase in energy consumption at a global scale, resulting in an exhaustive search for increased energy efficiency, especially in services buildings which are currently responsible for 13% of the total energy consumption in Portugal. The energy sector is undergoing a transformation process amid the targets proposed by the European Union, which aim to reduce energy consumption and polluting gases emissions through the implementation of more efficient solutions derived from renewable sources. This dissertation intends to detail the energy audit carried out at Escola Superior de Tecnologia do Barreiro, with 9 413 m2 of floor area, part of the Instituto Politécnico de Setúbal, this study uses as reference the requirements of the energy certification system currently in force and a building energy performance simulator, the Energy Plus software, using Design Builder as its interface. Through dynamic simulation, different energy rehabilitation scenarios are studied with the objective of proceeding with the technical-economic evaluation of the proposed improvement measures. Regarding the obtained results, it is clear that there are improvement measures with a better payback period than others, nevertheless all measures seek to diminish the costs associated with energy consumption and emissions of polluting gases in the studied building. Trough the execution of this project, it was determined that the building is responsible for the final energy consumption of 505 MW/year of electricity and 142 MWh/year of natural gas however, after the implementation of the rehabilitation measures, such as replacing existing lighting with LED solutions, the implementation of a Solar Production Unit for Self-Consumption, the replacement of the existing boiler with a Heat Pump and the rehabilitation of pipes in the heating system, a consumption of 151 MWh/year of electricity is expected and a complete extinction of the building's gas consumption, maintaining the thermal comfort of users in the spaces.
Description
Keywords
Auditoria Energética Escola Superior de Tecnologia do Barreiro DesignBuilder Energy audit Payback period