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Advisor(s)
Abstract(s)
O trabalho desenvolvido tem como objetivo a análise e estudo para certificação
energética, bem como o estudo de medidas de melhoria com vista a tornar o edifício um
NZEB (Nearly Zero Energy Building).
O edifício em estudo é um hotel de cinco estrelas situado no Funchal, com cinco
tipologias distintas. É composto por 6 pisos, tendo uma área total de 6393 m2 e área útil
de 5555 m2.
O trabalho de levantamento incluiu a instalação de analisadores de rede,
resultando numa desagregação de consumos sustentada, permitindo identificar as áreas
em que é mais importante atuar por forma a melhorar a eficiência energética do edifício.
Pelos resultados da simulação real verifica-se que, anualmente, o edifício consome
cerca de 698 MWh de eletricidade e 468 MWh de gás propano. O consumo de energia
primária é de 2212 MWhEP distribuídos da seguinte forma: 5,9% em Preparação de AQS,
2,9% em Aquecimento Água Piscinas, 0,9% em Elevadores, 0,4% em Iluminação
Exterior, 55,8% em Equipamentos, 6,2% em Câmaras Frigoríficas, 2,1% em Bombagem
Piscina, 3,8% em Aquecimento Ambiente, 0,6% em Bombas - Aquecimento, 2,0% em
Ventilação - Aquecimento, 8,2% em Arrefecimento Ambiente, 0,5% em Bombas -
Arrefecimento, 3,6% em Ventilação – Arrefecimento e 8,8% em Iluminação Interior.
Para atribuição da classe energética, são feitas duas simulações numéricas, em
condições previstas e condições de referência, para calcular o rácio do indicador de
eficiência energética. De acordo com o estudo efetuado, a classe do edifício é C.
São propostas medidas de melhoria para reduzir o consumo de energia do edifício.
Da totalidade, foram escolhidas somente as medidas de melhoria ativas, pois as passivas
têm um impacto bastante reduzido. A aplicação destas medidas permite a obtenção de
classe A+, no entanto não são suficientes para alcançar a classificação como NZEB.
The work developed aims at an analysis and study for energy certification, as well as the study of improvement measures in order to make the building an NZEB (Nearly Zero Energy Building). The building under study is a five-star hotel located in Funchal, with five different types. It consists of 6 floors, with a total area of 6393 m2 and a useful area of 5555 m2. The survey work included the installation of electric network analyzers, enabling a sustained breakdown of the consumption, allowing to identify the areas where it is more important to act to improve the energy efficiency of the building. From the results of the real simulation, it appears that, annually, the building consumes about 698 MWh of electricity and 468 MWh of propane gas. Primary energy consumption is 2212 MWhEP distributed as follows: 5.9% in DHW Preparation, 2.9% in Pools Water Heating, 0.9% in Elevators, 0.4% in Outdoor Lighting, 55.8 % in Equipment, 6.2% in Cold Rooms, 2.1% in Pool Pumping, 3.8% in Room Heating, 0.6% in Pumps - Heating, 2.0% in Ventilation - Heating, 8.2% in Ambient Cooling, 0.5% in Pumps - Cooling, 3.6% in Ventilation - Cooling and 8.8% in Indoor Lighting. To calculate the energy class, two numerical simulations are carried out, under predicted conditions and reference conditions, to calculate the energy efficiency indicator. According to the study carried out, the class of the building is C. Improvement proposals are given to reduce the building's energy consumption. Of the totality, they were chosen only as active improvement measures since passive measures have a very low impact. The application of the measures allows to obtain class A +, however they are not enough to achieve the classification as NZEB.
The work developed aims at an analysis and study for energy certification, as well as the study of improvement measures in order to make the building an NZEB (Nearly Zero Energy Building). The building under study is a five-star hotel located in Funchal, with five different types. It consists of 6 floors, with a total area of 6393 m2 and a useful area of 5555 m2. The survey work included the installation of electric network analyzers, enabling a sustained breakdown of the consumption, allowing to identify the areas where it is more important to act to improve the energy efficiency of the building. From the results of the real simulation, it appears that, annually, the building consumes about 698 MWh of electricity and 468 MWh of propane gas. Primary energy consumption is 2212 MWhEP distributed as follows: 5.9% in DHW Preparation, 2.9% in Pools Water Heating, 0.9% in Elevators, 0.4% in Outdoor Lighting, 55.8 % in Equipment, 6.2% in Cold Rooms, 2.1% in Pool Pumping, 3.8% in Room Heating, 0.6% in Pumps - Heating, 2.0% in Ventilation - Heating, 8.2% in Ambient Cooling, 0.5% in Pumps - Cooling, 3.6% in Ventilation - Cooling and 8.8% in Indoor Lighting. To calculate the energy class, two numerical simulations are carried out, under predicted conditions and reference conditions, to calculate the energy efficiency indicator. According to the study carried out, the class of the building is C. Improvement proposals are given to reduce the building's energy consumption. Of the totality, they were chosen only as active improvement measures since passive measures have a very low impact. The application of the measures allows to obtain class A +, however they are not enough to achieve the classification as NZEB.
Description
Trabalho final de mestrado para obtenção do grau de Mestre em Engenharia Mecânica
Keywords
Eficiência energética Energy efficiency Certificação energética de edifícios Energetic certification of buildings Energias renováveis Renewable energies Simulação energética de edifícios Energy simulation
Citation
RIBEIRO, João Paulo Cardoso - Certificação energética e análise de medidas de melhoria de um edifício de serviços. Lisboa: Instituto Superior de Engenharia de Lisboa, 2021. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa