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Abstract(s)
A forma como gerimos os recursos energéticos da Terra e o seu impacto nela é cada vez
mais um factor determinante nas soluções construtivas dos edifícios. Neste trabalho é
apresentada a análise térmica de um edifício habitacional utilizando dois softwares
distintos, o Hourly Analysis Program e o EnergyPlus (através da interface
DesignBuilder).
Inicialmente foi feito o dimensionamento de um possível sistema de climatização para a
habitação e posteriormente foi feita uma análise mais detalhada do comportamento do
edifício a nível de requisitos de climatização da habitação ao longo do ano, principais
agentes responsáveis por este comportamento e a nível de conforto térmico e visual.
Obtiveram-se valores próximos entre os dois softwares, apresentando ambos uma
potência necessária de arrefecimento superior à de aquecimento.
Dos resultados foi verificada a importância das janelas nas trocas de calor com o exterior
e consequentemente a importância da utilização de persianas de forma a controlar a
magnitude dos ganhos solares de maneira diferente nos meses de Verão (inibi-los) e nos
meses de Inverno (fomentá-los).
O conforto térmico da habitação foi analisado para cada divisória, tendo-se verificado
bons níveis de conforto tendo em conta as temperaturas de climatização definidas assim
como os níveis de actividade considerados.
A nível de conforto visual foi verificado o bom comportamento da habitação, com valores
de iluminância dentro dos valores estabelecidos como aceitáveis, tendo em conta os
horários de ocupação da mesma.
The way we manage Nature’s energy resources and its impact on the Earth is more and more a deciding factor on the various approaches applied to the construction of buildings. This work presents the analysis of the thermal behavior of a residential building using two different software’s: Hourly Analysis Program and EnergyPlus (through DesignBuilder). The sizing of a possible air conditioning system was first performed and was followed by a more detailed analysis of the behavior of the building in terms of its requirements for conditioning throughout the year, main factors responsible for its behavior, as well as thermal and visual comfort. The results obtained with the two software’s showed close agreement, with both obtaining a higher required load capacity for cooling than for heating. The results showed the importance of the windows on the heat exchanges with the outsider air and, consequently, the importance of selecting shading systems to control the magnitude of the solar gains (blocking them during the summer and allowing them during the winter) The thermal comfort was inspected for each of the house divisions and its analysis showed acceptable levels of comfort, taking in consideration the temperature set points and the levels of activity that were assumed. In terms of visual comfort, its analysis also showed that the house has good natural lighting for the type of occupation that was considered.
The way we manage Nature’s energy resources and its impact on the Earth is more and more a deciding factor on the various approaches applied to the construction of buildings. This work presents the analysis of the thermal behavior of a residential building using two different software’s: Hourly Analysis Program and EnergyPlus (through DesignBuilder). The sizing of a possible air conditioning system was first performed and was followed by a more detailed analysis of the behavior of the building in terms of its requirements for conditioning throughout the year, main factors responsible for its behavior, as well as thermal and visual comfort. The results obtained with the two software’s showed close agreement, with both obtaining a higher required load capacity for cooling than for heating. The results showed the importance of the windows on the heat exchanges with the outsider air and, consequently, the importance of selecting shading systems to control the magnitude of the solar gains (blocking them during the summer and allowing them during the winter) The thermal comfort was inspected for each of the house divisions and its analysis showed acceptable levels of comfort, taking in consideration the temperature set points and the levels of activity that were assumed. In terms of visual comfort, its analysis also showed that the house has good natural lighting for the type of occupation that was considered.
Description
Trabalho final de mestrado para a obtenção de grau de mestre em Engenharia Mecânica
Keywords
Comportamento térmico Thermal behavior Hourly analysis program Design builder Energy plus Simulação dinâmica Building performance simulation Edifício habitacional Residential building
Citation
ROSA, Ana Miguel Vieira da - Estudo e simulação do comportamento térmico e energético de um edificio. Lisboa: Instituto Superior de Engenharia de Lisboa, 2019. Dissertação de mestrado.
Publisher
Instituto Superior de Engenharia de Lisboa